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| -rw-r--r-- | cpu/ChangeLog | 4 | ||||
| -rw-r--r-- | cpu/cris.cpu | 4450 |
2 files changed, 4454 insertions, 0 deletions
diff --git a/cpu/ChangeLog b/cpu/ChangeLog index dc90188..3eef926 100644 --- a/cpu/ChangeLog +++ b/cpu/ChangeLog @@ -1,3 +1,7 @@ +2004-11-29 Hans-Peter Nilsson <hp@axis.com> + + * cris.cpu: New file. + 2004-11-15 Michael K. Lechner <mike.lechner@gmail.com> * iq2000.cpu: Added quotes around macro arguments so that they diff --git a/cpu/cris.cpu b/cpu/cris.cpu new file mode 100644 index 0000000..6bfa539 --- /dev/null +++ b/cpu/cris.cpu @@ -0,0 +1,4450 @@ +; CRIS CPU description. -*- Scheme -*- +; +; Copyright 2003, 2004 Free Software Foundation, Inc. +; +; Contributed by Axis Communications AB. +; +; This file is part of the GNU Binutils. +; +; This program is free software; you can redistribute it and/or modify +; it under the terms of the GNU General Public License as published by +; the Free Software Foundation; either version 2 of the License, or +; (at your option) any later version. +; +; This program is distributed in the hope that it will be useful, +; but WITHOUT ANY WARRANTY; without even the implied warranty of +; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +; GNU General Public License for more details. +; +; You should have received a copy of the GNU General Public License +; along with this program; if not, write to the Free Software +; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +(include "simplify.inc") + +;;;;;;;;;;;;;;;;;; -pmacro (generic ones) + +(define-pmacro (.car2 l) (.apply (.pmacro (a b) a) l)) +(define-pmacro (.cadr2 l) (.apply (.pmacro (a b) b) l)) +(define-pmacro (SI-ext x) "How to sign-extend a dword to dword (a nop)" x) +(define-pmacro (HI-ext x) "How to sign-extend a word to dword" (ext SI x)) +(define-pmacro (QI-ext x) "How to sign-extend a byte to dword" (ext SI x)) +(define-pmacro (SI-zext x) "How to zero-extend a dword to dword (a nop)" x) +(define-pmacro (HI-zext x) "How to zero-extend a word to dword" (zext SI x)) +(define-pmacro (QI-zext x) "How to zero-extend a byte to dword" (zext SI x)) +(define-pmacro + (define-pmacro-map x) + "On a list ((x0 y0) .. (xN yN)), 0 <= m <= N, (define-pmacro xm ym)" + (.splice + begin + (.unsplice + (.map + (.pmacro (l) (.apply (.pmacro (xm ym) (define-pmacro xm ym)) l)) x))) +) + +;;;;;;;;;;;;;;;;;; -arch -isa -cpu -model + +(define-arch + (name cris) + (comment "Axis Communications CRIS") + (default-alignment unaligned) + (insn-lsb0? #t) + (machs crisv0 crisv3 crisv8 crisv10 crisv32) + (isas cris) +) + +(define-isa + (name cris) + (base-insn-bitsize 16) + (liw-insns 1) + (parallel-insns 1) +) + +(define-pmacro + (define-cpu-cris x-suffix x-comment) + "Define a CRIS CPU family" + (define-cpu + (name (.sym cris x-suffix f)) + (comment x-comment) + (endian little) + ; CGEN-FIXME: Should be deduced from the default? + (word-bitsize 32) + (file-transform (.str x-suffix)) + ) +) + +; Useful when there's a need to iterate over all models. +(define-pmacro (cris-cpu-model-numbers) + "List of CRIS CPU model numbers (version register contents)" + (0 3 8 10 32) +) + +(define-pmacro (cris-cpu-models) + "List of CRIS CPU model names" + (.map (.pmacro (n) (.sym v n)) (cris-cpu-model-numbers)) +) + +; Mapping from model name to number. +(define-pmacro-map + (.map (.pmacro (n) ((.sym v n -number) n)) + (cris-cpu-model-numbers))) + +; FIXME: Rationalize these rules. +; CPU names must be distinct from the architecture name and machine names. +; The "b" suffix stands for "base" and is the convention. +; The "f" suffix stands for "family" and is the convention. +; We ignore the "b" convention, partly because v0 isn't really a "base", at +; least not for some aspects of v32. +(define-cpu-cris v0 "CRIS base family") +(define-cpu-cris v3 "CRIS v3 family") +(define-cpu-cris v8 "CRIS v8 family") +(define-cpu-cris v10 "CRIS v10 family") +(define-cpu-cris v32 "CRIS v32 family") + +(define-pmacro MACH-PRE-V32 (MACH crisv0,crisv3,crisv8,crisv10)) +(define-pmacro MACH-V3-UP (MACH crisv3,crisv8,crisv10,crisv32)) +(define-pmacro MACH-V32 (MACH crisv32)) +(define-pmacro MACH-PC MACH-PRE-V32) +(define-pmacro MACH-ACR MACH-V32) +(define-pmacro MACH-BRANCH-OFFSET-AT-INSN MACH-V32) +(define-pmacro MACH-BRANCH-OFFSET-AFTER-INSN MACH-PRE-V32) + +(define-pmacro + current-mach-is-v32 + "Whether the generated code is for V32. See comment at h-v32." + (reg h-v32) +) + +(define-pmacro (define-mach-cris x-suffix x-comment x-name) + "Define a CRIS mach" + (define-mach + (name (.sym cris x-suffix)) + ; They're all called "cris" in bfd. Watch out for breakages for some + ; uses. + (bfd-name x-name) + (comment x-comment) + (cpu (.sym cris x-suffix f))) +) + +(define-mach-cris v0 "Generic CRIS v0 CPU, ETRAX 1 .. 3" "cris") +(define-mach-cris v3 "Generic CRIS v3 CPU, ETRAX 4" "cris") +(define-mach-cris v8 "Generic CRIS v8 CPU, ETRAX 100" "cris") +(define-mach-cris v10 "Generic CRIS v10 CPU, ETRAX 100 LX" "cris") +(define-mach-cris v32 "Generic CRIS v32 CPU, ETRAX FS" "crisv32") + +(define-pmacro (define-model-simplecris x-name x-comment) + "Define a simple CRIS model" + (define-model + (name (.sym cris x-name)) + (comment x-comment) + (mach (.sym cris x-name)) + + (unit u-exec "Execution Unit" () 1 1 () () () ()) + (unit u-mem "Memory Unit" () 1 1 () () () ()) + + (unit u-const16 "Fetch 16-bit operand" () 1 1 () () () ()) + (unit u-const32 "Fetch 32-bit operand" () 1 1 + () () () ()) + ; Used in special-case insn, for example arithmetic with PC destination. + (unit u-stall "Stall unit" () 1 1 () () () ()) + (unit u-skip4 "Skip 4 bytes" () 1 1 () () () ()) + (unit u-multiply "Multiply Unit" () 1 1 ((MACH crisv10)) () () ()) + (unit u-movem "Movem Unit" () 1 1 () + ((Rd INT -1)) + () ())) +) + +(define-model-simplecris v0 "Model of CRIS v0, ETRAX 1 .. 3") +(define-model-simplecris v3 "Model of CRIS v3, ETRAX 4") +(define-model-simplecris v8 "Model of CRIS v8, ETRAX 100") +(define-model-simplecris v10 "Model of CRIS v10, ETRAX 100 LX") + +; For some reason, we get an error: +; Generating arch.h ... +; ERROR: In procedure vector-ref: +; ERROR: Wrong type argument in position 1: () +; if we include timings for machs that we don't generate sims for. +; Last checked: CVS as of 2004-11-18. +; CGEN-FIXME: Looks like another CGEN bug. When it's fixed (or when +; generating sims for v0, v3 or v8), add 0, 3 and 8 to +; simplecris-timing-models. But before that, simplecris-timing-x has to +; be rewritten to work on a multiple-element-list, not assume a single +; element. (A change which seems likely to depend on lexical scoping for +; macros to be introduced: try the obvious implementation.) +(define-pmacro simplecris-timing-models (10)) +(define-pmacro (simplecris-common-timing x-units) + "Make timing models, using x-units for all simplecris-timing-models" + ; CGEN-FIXME: Another CGEN bug: the part (.unsplice (10)) will remain + ; unexpanded in (.sym crisv (.unsplice (10)) if we write this as + ; ((.splice (.sym crisv (.unsplice simplecris-timing-models)) + ; (.unsplice x-units))) + ((.splice (.sym crisv (.apply (.pmacro (x) x) simplecris-timing-models)) + (.unsplice x-units))) +) + +(define-pmacro-map + ( + ; Timing for memory instructions running on a simple cris model. + ((simplecris-mem-timing) (simplecris-common-timing + ((unit u-mem) (unit u-exec)))) + ; Timing for movem instructions running on a simple cris model. + ((simplecris-movem-timing) (simplecris-common-timing + ((unit u-movem) (unit u-exec)))) + ; Similar, for an 8- or 16-bit constant ([PC+]) operand. + ((simplecris-const-timing-HI) + (simplecris-common-timing + ((unit u-const16) (unit u-exec)))) + ; Similar, for a 32-bit constant ([PC+]) operand. + ((simplecris-const-timing-SI) + (simplecris-common-timing + ((unit u-const32) (unit u-exec)))) + ; Similar, no particular operand. + ((simplecris-timing) (simplecris-common-timing + ((unit u-exec))))) +) + +(define-model + (name crisv32) + (comment "Model of CRISv32") + (mach crisv32) + + (state + ; Bitmask of h-gr register (0..15) and h-sr register (17..31) + ; modified by 3rd previous insn, updated by the u-exec unit. + ; Because there's no need to mark writes to special registers BZ and + ; WZ, bit 16 is for jump mark and bit 20 for memory-write mark. + (prev-prev-prev-modf-regs UINT) + + ; Ditto for the 2nd previous insn. + (prev-prev-modf-regs UINT) + + ; Ditto for the previous insn. + (prev-modf-regs UINT) + + ; Bit-mask for regs modified by the current insn, propagated to + ; prev-modf-regs. + (modf-regs UINT) + + ; Registers loaded by movem are not forwarded to the execution + ; stage, so we need to insert stall-cycles for ordinary insns + ; accessing such registers. In addition to the *modf-regs + ; above, these are set to tell *ordinary* insns which registers + ; are inaccessible. + + (prev-prev-prev-movem-dest-regs UINT) + + ; Ditto for the 2nd previous insn. + (prev-prev-movem-dest-regs UINT) + + ; Ditto for the previous insn. + (prev-movem-dest-regs UINT) + + ; Bit-mask for regs modified by the current insn, propagated to + ; prev-movem-dest-regs. + (movem-dest-regs UINT)) + + ; It seems this pipeline description isn't used at all; this is just + ; for show. + ; Noteworthy is the placement of the memory stage before the execute stage. + (pipeline all "" () ((fetch) (decode) (memory) (execute) (writeback))) + + ; Units that contribute only a constant pipeline delay are not included. + (unit u-mem "Memory Unit" () 1 1 () + ((Rs INT -1)) + () ()) + + ; Artificial units for read/write-related hazard accounting. + (unit u-mem-r "Memory Unit Read" () 1 1 () () () ()) + (unit u-mem-w "Memory Unit Write" () 1 1 () () () ()) + + (unit u-movem-rtom "Movem-to-memory Unit" () 1 1 () + ((Rs INT -1) (Rd INT -1)) + () ()) + (unit u-movem-mtor "Movem-to-register Unit" () 1 1 () + ((Rs INT -1) (Rd INT -1)) + () ()) + (unit u-multiply "Multiply Unit" () 1 1 () + ((Rs INT -1) (Rd INT -1)) + () ()) + (unit u-branch "Branch Unit" () 1 1 () + () + () ()) + (unit u-jump-r "Jump-to-register Unit" () 1 1 () + ((Rs INT -1)) + () ()) + (unit u-jump-sr "Jump-to-special-register Unit" () 1 1 () + ((Ps INT -1)) + () ()) + (unit u-jump "JAS/BAS Unit, saving PC" () 1 1 () + () + ((Pd INT -1)) ()) + + ; To keep track of PC; not really functional units. + (unit u-const16 "Fetch 16-bit operand" () 1 1 () () () ()) + (unit u-const32 "Fetch 32-bit operand" () 1 1 () () () ()) + (unit u-skip4 "Skip 4 bytes" () 1 1 () () () ()) + + ; For v32, we need to keep track of inputs (for movem destination + ; cycle penalties) and output (for e.g. memory source and jump + ; source cycle penalties). + (unit u-exec "Execution Unit" () 1 1 () + ((Rd INT -1) (Rs INT -1)) + ((Rd INT -1)) + ()) + + ; Special case of u-exec for movem: don't treat Rd as an incoming + ; parameter. + (unit u-exec-movem "Execution Unit" () 1 1 () + ((Rs INT -1)) + ((Rd INT -1)) + ()) + + ; Special case of u-exec when the destination is a special + ; register. + (unit u-exec-to-sr "Execution Unit" () 1 1 () + ((Rs INT -1)) + ((Pd INT -1)) ()) +) + +(define-pmacro (crisv32-timing-destreg d) + "Timing for instructions running on a crisv32 model" + ((crisv32 + (.splice unit u-exec (.unsplice d)))) +) +(define-pmacro (crisv32-timing) (crisv32-timing-destreg ())) + +(define-pmacro (cris-timing-Rd-sfield) + (crisv32-timing-destreg ((out Rd Rd-sfield))) +) + +(define-pmacro (crisv32-timing-c-HI) + ((crisv32 (unit u-const16) (unit u-exec))) +) + +(define-pmacro-map + ((crisv32-timing-c-QI crisv32-timing-c-HI) + ((crisv32-timing-c-SI) ((crisv32 (unit u-const32) (unit u-exec)))) + ((crisv32-timing-c-sr-SI) ((crisv32 (unit u-const32) (unit u-exec-to-sr)))) + ((crisv32-reg-sr-timing) ((crisv32 (unit u-exec-to-sr)))) + ((crisv32-mem-sr-timing) + ((crisv32 (unit u-mem) (unit u-mem-r) (unit u-exec-to-sr)))) + ((crisv32-mem-timing) ((crisv32 (unit u-mem) (unit u-mem-r) (unit u-exec)))) + ((crisv32-mem-write-timing) ((crisv32 (unit u-mem) (unit u-exec) (unit u-mem-w))))) +) + +(define-pmacro-map + ( + ; Timing for instructions using memory operands. + ((cris-mem-timing) (.splice (.unsplice (simplecris-mem-timing)) + (.unsplice (crisv32-mem-timing)))) + ; Timing for instructions using memory operands. + ((cris-mem-write-timing) (.splice + (.unsplice (simplecris-mem-timing)) + (.unsplice (crisv32-mem-write-timing)))) + ; Timing for moves from general register to special register. + ((cris-reg-sr-timing) (.splice (.unsplice (simplecris-timing)) + (.unsplice (crisv32-reg-sr-timing)))) + ; Timing for moves from memory to special register. + ((cris-mem-sr-timing) (.splice (.unsplice (simplecris-mem-timing)) + (.unsplice (crisv32-mem-sr-timing)))) + ; Timing for non-mul, non-memory, non-special-register, 16-bit instructions. + ((cris-timing) (.splice (.unsplice (simplecris-timing)) + (.unsplice (crisv32-timing)))) + ; Timing for instructions with 8- or 16-bit constant operand ([PC+]). + ((cris-timing-const-HI) (.splice + (.unsplice (simplecris-const-timing-HI)) + (.unsplice (crisv32-timing-c-HI)))) + ; Timing for instructions with a 32-bit constant operand ([PC+]). + ((cris-timing-const-SI) (.splice + (.unsplice (simplecris-const-timing-SI)) + (.unsplice (crisv32-timing-c-SI)))) + ; Like cris-timing-const-SI, but destination special register. + ((cris-timing-const-sr-SI) (.splice + (.unsplice (simplecris-const-timing-SI)) + (.unsplice (crisv32-timing-c-sr-SI)))) + ; Like cris-timing-const-HI, but destination special register. + ((cris-timing-const-sr-HI) (.splice + (.unsplice (simplecris-const-timing-HI)) + (.unsplice (crisv32-timing-c-sr-SI))))) +) + +(define-pmacro cris-timing-const-QI cris-timing-const-HI) +(define-pmacro cris-timing-const-sr-QI cris-timing-const-sr-HI) + +(define-pmacro (simplecris-common-specregs) + "The common special registers in pre-v32 models." + ((QI 0) (QI 1) (HI 4) (HI 5) + (SI 8) (SI 9) (SI 10) (SI 11) (SI 12) (SI 13)) +) + +(define-pmacro (cris-implemented-specregs-v0) + "Special registers in v0 and their sizes" + (.splice (.unsplice (simplecris-common-specregs)) (HI 6) (HI 7)) +) +(define-pmacro + cris-implemented-specregs-const-v0 + cris-implemented-specregs-v0 +) + +(define-pmacro (cris-implemented-specregs-v3) + "Special registers in v3 and their sizes" + (.splice (.unsplice (cris-implemented-specregs-v0)) (SI 14)) +) +(define-pmacro + cris-implemented-specregs-const-v3 + cris-implemented-specregs-v3 +) + +(define-pmacro (cris-implemented-specregs-v8) + "Special registers in v8 and their sizes" + (.splice (.unsplice (simplecris-common-specregs)) (SI 14)) +) +(define-pmacro + cris-implemented-specregs-const-v8 + cris-implemented-specregs-v8 +) + +(define-pmacro (cris-implemented-specregs-v10) + "Special registers in v10 and their sizes" + (.splice (.unsplice (simplecris-common-specregs)) (SI 7) (SI 14) (SI 15)) +) +(define-pmacro + cris-implemented-specregs-const-v10 + cris-implemented-specregs-v10 +) + +(define-pmacro (cris-implemented-specregs-v32) + "Special registers in v32 and their sizes" + ((QI 0) (QI 1) (QI 2) (QI 3) (HI 4) + (SI 5) (SI 6) (SI 7) (SI 8) (SI 9) + (SI 10) (SI 11) (SI 12) (SI 13) (SI 14) (SI 15)) +) +; For v32, all special register operations on constants (that is, +; move) take 32-bit operands, not the real size of the register, as in +; other move operations. +(define-pmacro (cris-implemented-specregs-const-v32) + (.map (.pmacro (regno) (SI regno)) (.iota 16)) +) + +(define-pmacro cris-swap-codes + "CRIS Swap codes in numeric order (no zero)" + ( r b br w wr wb wbr + n nr nb nbr nw nwr nwb nwbr) +) + +(define-pmacro cris-flagnames + "CRIS flag field values, dest and src fields concatenated" + (c v z n x i u p) ; ... b m for pre-v32 +) + +(define-pmacro-map + ; Bitnumber for each respective flag. + (.map (.pmacro (x num) ((.sym x -bitnumber) num)) + cris-flagnames (.iota 8)) +) + +; I give up. Here's a perl-script to get the values I want for this macro +; (not working along list principles, though). You can run this region. +; perl -e '$x = "cvznxiup"; for ($i = 0; $i < 256; $i++) { $s = ""; +; for ($j = 0; $j < 8; $j++) { if ($i & (1 << $j)) { +; $s .= substr ($x, $j, 1);}} +; printf ("%s%s", $s eq "" ? "_" : $s, (($i + 1) % 8) == 0 ? "\n " : " "); }' +(define-pmacro cris-flag-combinations + "Combinations of flags in numeric order" + (_ c v cv z cz vz cvz + n cn vn cvn zn czn vzn cvzn + x cx vx cvx zx czx vzx cvzx + nx cnx vnx cvnx znx cznx vznx cvznx + i ci vi cvi zi czi vzi cvzi + ni cni vni cvni zni czni vzni cvzni + xi cxi vxi cvxi zxi czxi vzxi cvzxi + nxi cnxi vnxi cvnxi znxi cznxi vznxi cvznxi + u cu vu cvu zu czu vzu cvzu + nu cnu vnu cvnu znu cznu vznu cvznu + xu cxu vxu cvxu zxu czxu vzxu cvzxu + nxu cnxu vnxu cvnxu znxu cznxu vznxu cvznxu + iu ciu viu cviu ziu cziu vziu cvziu + niu cniu vniu cvniu zniu czniu vzniu cvzniu + xiu cxiu vxiu cvxiu zxiu czxiu vzxiu cvzxiu + nxiu cnxiu vnxiu cvnxiu znxiu cznxiu vznxiu cvznxiu + p cp vp cvp zp czp vzp cvzp + np cnp vnp cvnp znp cznp vznp cvznp + xp cxp vxp cvxp zxp czxp vzxp cvzxp + nxp cnxp vnxp cvnxp znxp cznxp vznxp cvznxp + ip cip vip cvip zip czip vzip cvzip + nip cnip vnip cvnip znip cznip vznip cvznip + xip cxip vxip cvxip zxip czxip vzxip cvzxip + nxip cnxip vnxip cvnxip znxip cznxip vznxip cvznxip + up cup vup cvup zup czup vzup cvzup + nup cnup vnup cvnup znup cznup vznup cvznup + xup cxup vxup cvxup zxup czxup vzxup cvzxup + nxup cnxup vnxup cvnxup znxup cznxup vznxup cvznxup + iup ciup viup cviup ziup cziup vziup cvziup + niup cniup vniup cvniup zniup czniup vzniup cvzniup + xiup cxiup vxiup cvxiup zxiup czxiup vzxiup cvzxiup + nxiup cnxiup vnxiup cvnxiup znxiup cznxiup vznxiup cvznxiup + ) +) + +(define-pmacro cc-condition (not cbit)) +(define-pmacro cs-condition cbit) +(define-pmacro ne-condition (not zbit)) +(define-pmacro eq-condition zbit) +(define-pmacro vc-condition (not vbit)) +(define-pmacro vs-condition vbit) +(define-pmacro pl-condition (not nbit)) +(define-pmacro mi-condition nbit) +(define-pmacro ls-condition (or cbit zbit)) +(define-pmacro hi-condition (not (or cbit zbit))) +(define-pmacro ge-condition (not (xor vbit nbit))) +(define-pmacro lt-condition (xor vbit nbit)) +(define-pmacro gt-condition (not (or (xor vbit nbit) zbit))) +(define-pmacro le-condition (or (xor vbit nbit) zbit)) +(define-pmacro a-condition 1) + +; FIXME: define this properly for v10 and pre-v10. +(define-pmacro wf-condition pbit) + +(define-pmacro (cris-condition condno) + "Return condition state for condition number CONDNO" + (sequence + BI + ((SI tmpcond) (BI condres)) + (set tmpcond condno) + (.splice + cond + (.unsplice + (.map + (.pmacro + (condn condc) + ((eq tmpcond condn) (set condres (.sym condc -condition)))) + (.iota 16) + cris-condition-codes))) + condres) +) + +;;;;;;;;;;;;;;;;;; -keyword + +; General registers. +(define-pmacro (cris-general-gregs) + (.splice (SP 14) (.unsplice (.map (.pmacro (n) ((.sym R n) n)) (.iota 15)))) +) + +; Can't keep more than one gr-names definition at the same time; +; generated enum declarations in sim/cris/cris-desc.h will collide. +; FIXME: (include "different-mach-parts") + +(define-keyword + (name gr-names-pcreg) + (attrs MACH-PC) + (print-name h-gr-real-pc) + ; Put PC first so it is preferred over r15. + (.splice values (PC 15) (.unsplice (cris-general-gregs))) +) + +(define-keyword + (name gr-names-acr) + (attrs MACH-ACR) + ; The print-name directive will control the enum prefix. With the + ; arguably more appropriate h-gr-v32 or h-gr-acr, we'd get names like + ; H_GR_ACR_R0 instead of H_GR_R0. Since we have to choose something for + ; unprefixed names, we use the CRISv32 names. FIXME: All users should + ; change to use H_GR_V32_R0 (etc.), then change this to h-gr-v32. + (print-name h-gr) + ; Put ACR first so it is preferred over r15. + (.splice values (ACR 15) (.unsplice (cris-general-gregs))) +) + +(define-keyword + (name gr-names-v32) + (attrs MACH-V32) + ; In preparation for implementing the FIXME above. + (print-name h-gr-v32) + ; Put ACR first so it is preferred over r15. + (.splice values (ACR 15) (.unsplice (cris-general-gregs))) +) + +; Special registers with names common to all. +(define-pmacro (cris-general-pregs) + (.splice + (VR 1) + (SRP 11) + (.unsplice (.map (.pmacro (n) ((.sym P n) n)) (.iota 15)))) +) + +(define-keyword + (name p-names-v10) + (attrs MACH-PRE-V32) + (print-name h-sr-pre-v32) + (.splice + values + (CCR 5) + (MOF 7) + (IBR 9) + (IRP 10) + (BAR 12) + (DCCR 13) + (BRP 14) + (USP 15) + (.unsplice (cris-general-pregs))) +) + +(define-keyword + (name p-names-v32) + (attrs MACH-V32) + ; See comment for gr-names-acr. + (print-name h-sr) + (.splice + values + (BZ 0) + (PID 2) + (SRS 3) + (WZ 4) + (EXS 5) + (EDA 6) + (MOF 7) + (DZ 8) + (EBP 9) + (ERP 10) + (NRP 12) + (CCS 13) + (USP 14) + (SPC 15) + (.unsplice (cris-general-pregs))) +) + +; Similarly as for h-gr-v32, in preparation. +(define-keyword + (name p-names-v32-x) + (attrs MACH-V32) + ; See comment for gr-names-acr. + (print-name h-sr-v32) + (.splice + values + (BZ 0) + (PID 2) + (SRS 3) + (WZ 4) + (EXS 5) + (EDA 6) + (MOF 7) + (DZ 8) + (EBP 9) + (ERP 10) + (NRP 12) + (CCS 13) + (USP 14) + (SPC 15) + (.unsplice (cris-general-pregs))) +) + +(define-pmacro p0 (reg h-sr 0)) +(define-pmacro vr (reg h-sr 1)) +(define-pmacro pid (reg h-sr 2)) +(define-pmacro srs (reg h-sr 3)) +(define-pmacro p4 (reg h-sr 4)) +(define-pmacro ccr (reg h-sr 5)) +(define-pmacro mof (reg h-sr 7)) +(define-pmacro p8 (reg h-sr 8)) +(define-pmacro ibr (reg h-sr 9)) +(define-pmacro ebp (reg h-sr 9)) +(define-pmacro erp (reg h-sr 10)) +(define-pmacro srp (reg h-sr 11)) +(define-pmacro ccs (reg h-sr 13)) +(define-pmacro dccr (reg h-sr 13)) +(define-pmacro usp (reg h-sr 14)) +(define-pmacro spc (reg h-sr 15)) + +(define-pmacro sp (reg h-gr 14)) +(define-pmacro acr (reg h-gr 15)) + +(define-pmacro cris-condition-codes + "CRIS condition codes in numeric order" + (cc cs ne eq vc vs pl mi ls hi ge lt gt le a wf) +) + +; No use having different lists; this is the only CC that +; differs between v10 and v32, and mostly in the name. +(define-pmacro sb wf) + + +;;;;;;;;;;;;;;;;;; -hardware + +;; Various constant generators. + +(define-hardware + (name h-inc) + (comment "autoincrement-bit syntax specifier") + (type immediate (UINT 1)) + (values keyword "" (("" 0) ("+" 1))) +) + +(define-hardware + (name h-ccode) + (comment "Condition code specifier") + (type immediate (UINT 4)) + (values keyword "" + (.map (.pmacro (x y) ((.str x) y)) + cris-condition-codes (.iota 16))) +) + +(define-hardware + (name h-swap) + (comment "Swap option specifier") + (type immediate (UINT 4)) + (values + keyword "" + (.splice + (" " 0) + (.unsplice + (.map + (.pmacro (x y) ((.str x) y)) cris-swap-codes (.iota 15 1))))) +) + +(define-hardware + (name h-flagbits) + (comment "Flag bits specifier") + (type immediate (UINT 8)) + (values + keyword "" + (.map (.pmacro (x y) ((.str x) y)) cris-flag-combinations (.iota 256))) +) + +; Apparently, the semantic-name isn't used for accessors, so external +; users like the sim glue and SID sees the -v32 and -pre-v32 munged names. +; Defining "dispatchers"; virtual registers whose getter and setter works +; on the "real" mach variants, seems to help. CGEN-FIXME: Make +; semantic-name set the generated names. +(define-pmacro (cris-d-hwreg x-name x-type) + (define-hardware + (name x-name) + (comment (.str "Dispatcher for " x-name)) + (attrs VIRTUAL) + (type register x-type) + (get () (reg (.sym x-name -x))) + (set (val) (set (reg (.sym x-name -x)) val))) +) +(define-pmacro (cris-d-hwregf-a x-name x-type x-n x-attrs) + (define-hardware + (name x-name) + (comment (.str "Dispatcher for " x-name)) + (.splice attrs VIRTUAL (.unsplice x-attrs)) + (type register x-type (x-n)) + (get (index) (reg (.sym x-name -x) index)) + (set (index val) (set-quiet (reg (.sym x-name -x) index) val))) +) +(define-pmacro (cris-d-hwregf x-name x-type x-n) + (cris-d-hwregf-a x-name x-type x-n ()) +) +(define-pmacro (cris-d-hwregf-p x-name x-type x-n) + (cris-d-hwregf-a x-name x-type x-n (PROFILE)) +) + +; At first glance we could use (eq-attr (current-mach) ...) for +; everything, but that seems sometimes (always?) to yield false. For +; ifields, it causes noncompilable C-code. For the insn semantics code, +; it causes tests movei.ms and mulv32.ms to fail, apparently because the +; current-mach-is-v32 usage in flags setting is miscompiled as 0 (or +; rather, misgenerated). Instead we use different definitions of a +; MACH-tagged virtual register yielding a constant, together with a +; pmacro. CGEN-FIXME: If eq-attr is someday fixed, we could just remove +; these h-v32 virtual register definitions and change the pmacro +; definition for current-mach-is-v32. +(define-hardware + (semantic-name h-v32) + (name h-v32-v32) + (attrs MACH-V32 VIRTUAL) + (type register BI) + (get () (const BI 1)) + (set (val) (error "Can't set h-v32")) +) +(define-hardware + (semantic-name h-v32) + (name h-v32-non-v32) + (attrs MACH-PRE-V32 VIRTUAL) + (type register BI) + (get () (const BI 0)) + (set (val) (error "Can't set h-v32")) +) + +;; "Real" hardware. + +(define-hardware + (name h-pc) + (comment "program counter") + (attrs PC PROFILE) + (type pc) + ; There's no bit 0 in PC, so just ignore it when jumping etc. + (set (val) (set (raw-reg h-pc) (and val (inv 1)))) +) + +; Note that setting register 15 isn't handled here, but in each insn, so +; the proper "jump" attributes and other special stuff for speedy +; execution can be present. +(cris-d-hwregf-p h-gr SI 16) +(define-hardware + (semantic-name h-gr-x) + (name h-gr-pc) + (attrs MACH-PC VIRTUAL) + (comment "General purpose registers, aborting on PC access") + (type register SI (16)) + (indices extern-keyword gr-names-pcreg) + (get + (index) + (if SI (eq index 15) + (error SI "General register read of PC is not implemented.") + (reg SI h-gr-real-pc index))) + (set + (index val) + (sequence + () + (if (eq index 15) + (error "General register write to PC is not implemented.")) + (set (reg SI h-gr-real-pc index) val))) +) +(define-hardware + (name h-gr-real-pc) + (attrs MACH-PC) + (comment "General purpose registers") + (type register SI (16)) + (indices extern-keyword gr-names-pcreg) +) + +; We have to use a virtual register trick to get the "raw", unaccounted +; contents of the global register; the raw-reg RTX only works for +; non-virtual register files. +(define-hardware + (semantic-name h-raw-gr) + (name h-raw-gr-pc) + (attrs MACH-PC VIRTUAL) + (comment "Unaccounted version of general purpose registers") + (type register SI (16)) + (get (index) (raw-reg h-gr-real-pc index)) + (set (index val) (set-quiet (raw-reg h-gr-real-pc index) val)) +) +(define-hardware + (semantic-name h-gr-x) + (name h-gr-acr) + (attrs MACH-ACR) + (comment "General purpose registers") + (type register SI (16)) + (indices extern-keyword gr-names-acr) +) +(define-hardware + (semantic-name h-raw-gr) + (name h-raw-gr-acr) + (attrs MACH-ACR VIRTUAL) + (comment "Unaccounted version of general purpose registers") + (type register SI (16)) + (get (index) (raw-reg h-gr-x index)) + (set (index val) (set-quiet (raw-reg h-gr-x index) val)) +) + +; FIXME: get and set semantics? Unknown how to split semantics best; with +; get/set semantics or within the insn specification. Doing the former for +; now. Should use different names for pre-v10. +; FIXME: No dccr for v0 and v3. Different high flag bits. +(cris-d-hwregf-p h-sr SI 16) +(define-pmacro + (cris-h-sr machver) + (define-hardware + (semantic-name h-sr-x) + (name (.sym h-sr-v machver)) + (attrs (MACH (.sym crisv machver))) + (comment (.str "Special registers for v" machver)) + (type register SI (16)) + (indices extern-keyword p-names-v10) + (get + (index) + (cond + SI + ((orif (orif (eq index (regno p0)) (eq index (regno p4))) + (eq index (regno p8))) 0) + ((eq index (regno vr)) machver) + ((orif (eq index (regno ccr)) + (eq index (regno dccr))) + ; Return "P U I X N Z V C" for the low 8 bits. + ; FIXME: More bits. + (or SI + (and SI (raw-reg SI h-sr-x (regno ccr)) #xffffff00) + (or + (zext SI (reg BI h-cbit)) + (or + (sll (zext SI (reg BI h-vbit)) 1) + (or + (sll (zext SI (reg BI h-zbit)) 2) + (or + (sll (zext SI (reg BI h-nbit)) 3) + (or + (sll (zext SI (reg BI h-xbit)) 4) + (or + (sll (zext SI (reg BI h-ibit)) 5) + (or + (sll (zext SI (reg BI h-ubit)) 6) + (or + (sll (zext SI (reg BI h-pbit)) 7) + 0)))))))))) + (else (raw-reg SI h-sr-x index)))) + (set + (index val) + (cond + ((orif (orif (eq index (regno p0)) (eq index (regno p4))) + (orif (eq index (regno p8)) (eq index (regno vr)))) + (nop)) + ((orif (eq index (regno ccr)) (eq index (regno dccr))) + (sequence + () + (set (reg BI h-cbit) (if BI (ne SI (and val (sll 1 0)) 0) 1 0)) + (set (reg BI h-vbit) (if BI (ne SI (and val (sll 1 1)) 0) 1 0)) + (set (reg BI h-zbit) (if BI (ne SI (and val (sll 1 2)) 0) 1 0)) + (set (reg BI h-nbit) (if BI (ne SI (and val (sll 1 3)) 0) 1 0)) + (set (reg BI h-xbit) (if BI (ne SI (and val (sll 1 4)) 0) 1 0)) + (set (reg BI h-ibit) (if BI (ne SI (and val (sll 1 5)) 0) 1 0)) + (set (reg BI h-ubit) (if BI (ne SI (and val (sll 1 6)) 0) 1 0)) + (set (reg BI h-pbit) (if BI (ne SI (and val (sll 1 7)) 0) 1 0)) + (set-quiet (raw-reg SI h-sr-x (regno ccr)) val) + (set-quiet (raw-reg SI h-sr-x (regno dccr)) val))) + (else (set-quiet (raw-reg SI h-sr-x index) val))))) +) + +(cris-h-sr 0) +(cris-h-sr 3) +(cris-h-sr 8) +(cris-h-sr 10) + +(define-hardware + (semantic-name h-sr-x) + (name h-sr-v32) + (attrs MACH-V32) + (comment "Special registers for v32") + (type register SI (16)) + (indices extern-keyword p-names-v32) + + (get + (index) + (cond + SI + ((orif (orif (eq index (regno p0)) (eq index (regno p4))) + (eq index (regno p8))) 0) + ((eq index (regno vr)) 32) + ((eq index (regno ccs)) + ; Return "S R P U I X N Z V C" for the low 10 bits. + (or SI + (and SI (raw-reg SI h-sr-x (regno ccs)) #x3ffffc00) + (or + (zext SI (reg BI h-cbit)) + (or + (sll (zext SI (reg BI h-vbit)) 1) + (or + (sll (zext SI (reg BI h-zbit)) 2) + (or + (sll (zext SI (reg BI h-nbit)) 3) + (or + (sll (zext SI (reg BI h-xbit)) 4) + (or + (sll (zext SI (reg BI h-ibit)) 5) + (or + (sll (zext SI (reg BI h-ubit)) 6) + (or + (sll (zext SI (reg BI h-pbit)) 7) + (or + (sll (zext SI (reg BI h-rbit)) 8) + (or + (sll (zext SI (reg BI h-sbit)) 9) + (or + (sll (zext SI (reg BI h-mbit)) 30) + (or + (sll (zext SI (reg BI h-qbit)) 31) + 0)))))))))))))) + ((eq index (regno usp)) + ; In user mode, return general stack pointer. + (if BI (reg BI h-ubit) + (raw-reg SI h-gr-x (regno sp)) + (raw-reg SI h-sr-x (regno usp)))) + (else (raw-reg SI h-sr-x index)))) + + (set + (index val) + (cond + ((orif (orif (eq index (regno p0)) (eq index (regno p4))) + (orif (eq index (regno p8)) (eq index (regno vr)))) + (nop)) + ((eq index (regno ccs)) + (sequence + () + ; Protected bits are handled as such in the respective setter function. + (set (reg BI h-cbit) (if BI (ne SI (and val (sll 1 0)) 0) 1 0)) + (set (reg BI h-vbit) (if BI (ne SI (and val (sll 1 1)) 0) 1 0)) + (set (reg BI h-zbit) (if BI (ne SI (and val (sll 1 2)) 0) 1 0)) + (set (reg BI h-nbit) (if BI (ne SI (and val (sll 1 3)) 0) 1 0)) + (set (reg BI h-xbit) (if BI (ne SI (and val (sll 1 4)) 0) 1 0)) + (set (reg BI h-ibit) (if BI (ne SI (and val (sll 1 5)) 0) 1 0)) + (set (reg BI h-sbit) (if BI (ne SI (and val (sll 1 9)) 0) 1 0)) + (set (reg BI h-mbit) (if BI (ne SI (and val (sll 1 30)) 0) 1 0)) + (set (reg BI h-pbit) (if BI (ne SI (and val (sll 1 7)) 0) 1 0)) + (set (reg BI h-rbit) (if BI (ne SI (and val (sll 1 8)) 0) 1 0)) + (set (reg BI h-qbit) (if BI (ne SI (and val (sll 1 31)) 0) 1 0)) + ; Set the U bit last, so the setter functions for the other bits + ; don't see it as set from this operation. It is not cleared from + ; this operation, so we don't have to handle that; it's only + ; cleared "manually" from within simulator-specific context-switch + ; machinery. + (set (reg BI h-ubit) (if BI (ne SI (and val (sll 1 6)) 0) 1 0)) + (set-quiet (raw-reg SI h-sr-x index) val))) + ((eq index (regno usp)) + ; In user mode, set general register 14 too, whenever setting USP. + (sequence + () + (if (reg BI h-ubit) (set (raw-reg SI h-gr-x (regno sp)) val)) + (set (raw-reg SI h-sr-x (regno usp)) val))) + ((eq index (regno srs)) + (if (not (reg BI h-ubit)) (set (raw-reg h-sr-x (regno srs)) val))) + ((eq index (regno ebp)) + (if (not (reg BI h-ubit)) (set (raw-reg h-sr-x (regno ebp)) val))) + ((eq index (regno pid)) + (if (not (reg BI h-ubit)) + (sequence + () + (c-call VOID "@cpu@_write_pid_handler" val) + (set (raw-reg h-sr-x (regno pid)) val)))) + ((eq index (regno spc)) + (if (not (reg BI h-ubit)) (set (raw-reg h-sr-x (regno spc)) val))) + (else (set-quiet (raw-reg SI h-sr-x index) val)))) +) + +(define-hardware + (name h-supr) + (attrs MACH-V32 VIRTUAL) + (comment "Support registers") + (type register SI (16)) + (values keyword "" (.map (.pmacro (y) ((.str S y) y)) (.iota 16))) + (get (index) (c-call SI "@cpu@_read_supr" index)) + (set (index val) (c-call VOID "@cpu@_write_supr" index val)) +) + +(define-pmacro (cris-dsh semantic-name name comment attrs type) + "Like dsh, but the semantic-name is separate" + (define-full-hardware + name comment attrs semantic-name type () () () () () ()) +) + +; We define the condition codes that hold arithmetic flags separately +; and "or" them in, in the get and set methods of the special +; registers. We define arithmetic flags as any of C V Z N X. They +; thankfully have that order (zero-based) in all processor versions. + +; To avoid having two variants of most move-type instructions because V32 +; doesn't set C and V (and N and Z), we fake the setting to virtual +; registers which have two different implementations. +(define-pmacro (cris-move-flag f f-name f-whence) + "Flag set differently in pre-v32 and v32 in some cases" + (begin + (dsh (.sym h- f bit) (.str f-name " bit") () (register BI)) + (cris-d-hwreg (.sym h- f bit-move) BI) + (define-hardware + (semantic-name (.sym h- f bit-move-x)) + (name (.sym h- f bit-move-v32)) + (comment (.str f-name " bit set in " f-whence " instructions, ignored")) + (attrs MACH-V32 VIRTUAL) + (type register BI) + (get + () + (sequence BI () + (error (.str "Can't get h-" f "bit-move on CRISv32")) 0)) + (set (val) (nop))) + (define-hardware + (semantic-name (.sym h- f bit-move-x)) + (name (.sym h- f bit-move-pre-v32)) + (comment + (.str + f-name " bit set in " f-whence " instructions, same as " f "bit")) + (attrs MACH-PRE-V32 VIRTUAL) + (type register BI) + (get () (reg (.sym h- f bit))) + (set (val) (set (reg (.sym h- f bit)) val)))) +) + +(cris-move-flag c "carry" "move-type") +(cris-move-flag v "overflow" "move-type") +(cris-move-flag z "zero" "moveq") +(cris-move-flag n "sign" "moveq") + +(dsh h-xbit "extended-arithmetic bit" () (register BI)) +(cris-d-hwreg h-ibit BI) +(cris-dsh h-ibit-x h-ibit-pre-v32 + "interrupt-enable bit" (MACH-PRE-V32) (register BI)) +(dsh h-pbit "sequence-broken bit" ((MACH crisv10,crisv32)) (register BI)) +(dsh h-rbit "carry bit for MCP+restore-p bit" (MACH-V32) (register BI)) +(cris-d-hwreg h-ubit BI) +(cris-dsh h-ubit-x h-ubit-pre-v32 + "user mode bit" ((MACH crisv10)) (register BI)) +(dsh h-gbit "guru mode bit" (MACH-V32) (register BI)) + +; When doing a transition from kernel to user mode on V32, we save the +; stack pointer in an internal register and copy USP to R14, so we don't +; need non-trivial handlers for general registers. +(dsh + h-kernel-sp + "Kernel stack pointer during user mode" + (MACH-V32) + (register SI) +) + +(define-hardware + (semantic-name h-ubit-x) + (name h-ubit-v32) + (comment "User mode bit") + (attrs MACH-V32) + (type register BI) + (set + (val) + (sequence + () + (if (andif val (not (raw-reg BI h-ubit-x))) + (sequence + () + (set (reg SI h-kernel-sp) (raw-reg h-gr-x (regno sp))) + (set (raw-reg h-gr-x (regno sp)) (raw-reg h-sr-x (regno usp))) + (set (raw-reg BI h-ubit-x) val) + (c-call VOID "@cpu@_usermode_enabled"))))) +) + +(define-hardware + (semantic-name h-ibit-x) + (name h-ibit-v32) + (comment "Interrupt-enable bit") + (attrs MACH-V32) + (type register BI) + (set + (val) + (sequence + () + (if (not (reg BI h-ubit)) + (sequence + ((BI enabled)) + (set enabled (andif val (not (raw-reg BI h-ibit-x)))) + (set (raw-reg BI h-ibit-x) val) + ; Call handler when enabling. + (if enabled (c-call VOID "@cpu@_interrupts_enabled")))))) +) + +(define-hardware + (name h-mbit) + (comment "NMI enable bit") + (attrs MACH-V32) + (type register BI) + (set + (val) + (sequence + () + ; Don't allow clearing (through this handler) when once set. + (if (andif val (andif (not (raw-reg BI h-mbit)) (not (reg BI h-ubit)))) + (sequence + () + (set (raw-reg BI h-mbit) 1) + ; Call handler when enabling. + (c-call VOID "@cpu@_nmi_enabled"))))) +) + +(define-pmacro + (dsh-cond-bit-v32 x-name x-comment x-cond) + "dsh bit for MACH-V32, with bit only changeable when X-COND" + (define-hardware + (name x-name) + (comment x-comment) + (attrs MACH-V32) + (type register BI) + (set (val) (sequence () (if x-cond (set (raw-reg BI x-name) val))))) +) +(define-pmacro + (dsh-protected-bit-v32 x-name x-comment) + "dsh bit for MACH-V32, with bit only changeable in kernel mode" + (dsh-cond-bit-v32 x-name x-comment (not (reg BI h-ubit))) +) +(dsh-protected-bit-v32 h-qbit "Pending single-step bit") + +(define-hardware + (name h-sbit) + (comment "Cause single step exception on ... [see CRISv32 ref] bit") + (attrs MACH-V32) + (type register BI) + (set + (val) + (sequence + () + (if (not (reg BI h-ubit)) + (sequence + ((BI enabled)) + (set enabled (andif val (not (raw-reg BI h-sbit)))) + (set (raw-reg BI h-sbit) val) + ; Call handler when enabling. + (if enabled (c-call VOID "@cpu@_single_step_enabled")))))) +) + +(dnop cbit "" (SEM-ONLY) h-cbit f-nil) +(dnop cbit-move + "cbit for pre-V32, nothing for newer" (SEM-ONLY) h-cbit-move f-nil) +(dnop vbit "" (SEM-ONLY) h-vbit f-nil) +(dnop vbit-move + "vbit for pre-V32, nothing for newer" (SEM-ONLY) h-vbit-move f-nil) +(dnop zbit "" (SEM-ONLY) h-zbit f-nil) +(dnop zbit-move + "zbit for pre-V32, nothing for newer" (SEM-ONLY) h-zbit-move f-nil) +(dnop nbit "" (SEM-ONLY) h-nbit f-nil) +(dnop nbit-move + "nbit for pre-V32, nothing for newer" (SEM-ONLY) h-nbit-move f-nil) +(dnop xbit "" (SEM-ONLY) h-xbit f-nil) +(dnop ibit "" (SEM-ONLY) h-ibit f-nil) +(dnop ubit "" (SEM-ONLY (MACH crisv10,crisv32)) h-ubit f-nil) +(dnop pbit "" (SEM-ONLY (MACH crisv10,crisv32)) h-pbit f-nil) +(dnop + rbit "carry bit for MCP+restore-P flag bit" (SEM-ONLY MACH-V32) h-rbit f-nil) +(dnop sbit "" (SEM-ONLY MACH-V32) h-sbit f-nil) +(dnop mbit "" (SEM-ONLY MACH-V32) h-mbit f-nil) +(dnop qbit "" (SEM-ONLY MACH-V32) h-qbit f-nil) + +(cris-d-hwreg h-insn-prefixed-p BI) +(cris-dsh + h-insn-prefixed-p-x + h-insn-prefixed-p-pre-v32 + "instruction-is-prefixed bit" + (MACH-PRE-V32) + (register BI) +) + +; CRISv32 has no prefixing on memory accesses. CGEN-FIXME: [Once (eq-attr +; (current-mach) ...) works]: can we change andif and/or orif so it +; doesn't look too close at short-circuited operands and avoid defining an +; operand that doesn't apply to a certain mach? +(define-hardware + (semantic-name h-insn-prefixed-p-x) + (name h-insn-prefixed-p-v32) + (attrs MACH-V32 VIRTUAL) + (comment "instruction-is-prefixed bit") + (type register BI) + (get () (const BI 0)) + (set (val) (nop)) +) +(dnop + prefix-set + "Instruction-prefixed flag" + (SEM-ONLY) + h-insn-prefixed-p + f-nil +) + +(cris-dsh + h-prefixreg h-prefixreg-pre-v32 + "Prefix-address register" (MACH-PRE-V32) (register SI)) +(define-hardware + (semantic-name h-prefixreg) + (name h-prefixreg-v32) + (comment "Prefix-address register, redirecting to ACR") + (attrs MACH-V32 VIRTUAL) + (type register SI) + ; Why can't we have just a "acr" a.k.a "(reg h-gr 15)" here? + (get () acr) + (set (value) (set acr value)) +) + +(dnop + prefixreg + "Prefix address" + (SEM-ONLY) + h-prefixreg + f-nil +) + +;;;;;;;;;;;;;;;;;; -ifield + +; 15 0 +; +-----------+-----+-----------+-----+-----------+ +; | Operand2 | Mode| Opcode | Size| Operand1 | +; +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ +; +; Figure 5. General instruction format. +; +; Some deviations from this format exist, [see below]. + +; Field specifiers in CGEN specify the highest numbered bit followed by +; the number of bits. + +(dnf f-operand1 "Operand1" () 3 4) +(dnf f-size "Size" () 5 2) +(dnf f-opcode "Opcode" () 9 4) +(dnf f-mode "Mode" () 11 2) +(dnf f-operand2 "Operand2" () 15 4) + +; Subfields. FIXME: unfortunately there's some limitation in CGEN so we +; can't (as would be somewhat intuitive) make f-mode a multi-ifield +; consisting of these two, concatenated. +(dnf f-memmode "Indirect of autoincrement" () 10 1) +(dnf f-membit "Memory specifier" () 11 1) + +(dnf f-b5 "Bit 5 (zero for some quick operands)" () 5 1) + +; When the addressing mode is quick immediate, the low bits are +; part of the operand. +(dnf f-opcode-hi "Opcode field, high bits" () 9 2) + +; Common synonyms for those fields. +(define-pmacro f-source f-operand1) +(define-pmacro f-dest f-operand2) + +(dnmf + f-dstsrc "Dest and source fields concatenated" () UINT + (f-dest f-source) + ; Insert-code. + (sequence + ((SI tmpval)) + (set tmpval (ifield f-dstsrc)) + (set (ifield f-dest) (and (srl tmpval 4) #xf)) + (set (ifield f-source) (and tmpval #xf))) + ; Extract-code. + (set + (ifield f-dstsrc) + (and (or (ifield f-source) (sll (ifield f-dest) 4)) #xff)) +) + +;The 6-bit value may be sign or zero extended depending on the instruction. +; +; 15 0 +; +-----------+-----+-----------+-----+-----------+ +; | Operand2 | Mode| Opcode | Immediate value | +; +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ +; +; Figure 6. Quick immediate addressing mode instruction format. + +(dnf f-u6 "Quick immediate unsigned 6-bit" () 5 6) +(df f-s6 "Quick signed 6-bit" () 5 6 INT #f #f) + +; There's also a variant used with shift insns, with one bit larger opcode +; and one bit smaller immediate value, though it doesn't have a general +; graphic description. +(dnf f-u5 "Quick unsigned 5-bit" () 4 5) + +; Similarly, a four-bit immediate field. +(dnf f-u4 "Quick unsigned 4-bit" () 3 4) + +; An 8-bit signed value, which doesn't have a general graphic description. +(df f-s8 "Source signed byte" () 7 8 INT #f #f) + +; The 9-bit branch offset, with bit 0 in the field being bit 8 in the +; offset, and bit 0 in the offset always 0. +(df f-disp9-hi "PC-relative 9-bit offset, sign bit" () 0 1 INT #f #f) +(dnf f-disp9-lo "PC-relative 9-bit offset, low bits" () 7 7) + +; It would work to have this in two mach-specific variants, but +; considering that current-mach-is-v32 is a compile-time constant, we +; don't win any simulator performance. +(dnmf + f-disp9 "PC-relative 9-bit offset" + (PCREL-ADDR) + INT + (f-disp9-hi f-disp9-lo) + ; Insert-code. + (sequence + ((SI absval)) + (set absval (srl (sub (sub SI (ifield f-disp9) pc) + (if SI current-mach-is-v32 0 2)) 1)) + (set (ifield f-disp9-hi) (if (lt absval 0) 1 0)) + (set (ifield f-disp9-lo) (and absval) #x7f)) + ; Extract-code. + (sequence + ((SI abslo) (SI absval)) + (set abslo (sll (ifield f-disp9-lo) 1)) + (set absval + (or (if SI (ne (ifield f-disp9-hi) 0) + (inv SI #xff) + 0) + abslo)) + (set (ifield f-disp9) + (add SI (add SI pc absval) (if SI current-mach-is-v32 0 2)))) +) + +; The operand of LAPCQ is PC-relative, similar to f-disp9 but unsigned, +; and only four bits. +(df + f-qo + "PC-relative 4-bit unsigned offset, counted from start of insn" + (MACH-V32 PCREL-ADDR) + 3 4 + UINT + ; Insert-code. + ((value pc) (srl SI (sub SI value pc) 1)) + ; Extract-code. + ((value pc) (add SI pc (sll SI value 1))) +) + +; 8-bit, 16-bit and 32-bit immediates. The 8-bit values are constructed +; through encoding/decoding functions, since the PC increment is by a +; word. +(define-pmacro (dcrisf x-name x-comment x-attrs x-word-offset x-word-length + x-start x-length x-mode x-encode x-decode) + (define-ifield + (name x-name) + (comment x-comment) + (.splice attrs (.unsplice x-attrs)) + (word-offset x-word-offset) + (word-length x-word-length) + (start x-start) + (length x-length) + (mode x-mode) + (.splice encode (.unsplice x-encode)) + (.splice decode (.unsplice x-decode)) + ) +) + +(dcrisf + f-indir-pc+-byte "[PC+] 8-bit field" (SIGN-OPT) + 16 16 + 15 16 ; CGEN-FIXME: Should be 7 8 + INT (#f) (#f) +) + +(dcrisf + f-indir-pc+-word "[PC+] 16-bit field" (SIGN-OPT) + 16 16 15 16 INT (#f) (#f) +) + +; CGEN-FIXME: I shouldn't have to use trunc here, should I? +; Sign-extension should be implicit through use of SI (as opposed to USI) +; and additionally through SIGN-OPT. The ext isn't actually needed, but +; having it there rather than implicit makes more sense than to just have +; the trunc. +(dcrisf + f-indir-pc+-word-pcrel "[PC+] PC-relative 16-bit field" + (PCREL-ADDR SIGN-OPT) + 16 16 15 16 SI + ((value pc) (sub SI value (add SI pc (if SI current-mach-is-v32 0 4)))) + ((value pc) (add SI (ext SI (trunc HI value)) (add SI pc (if SI current-mach-is-v32 0 4)))) +) + +(dcrisf + f-indir-pc+-dword "PC autoincrement - 32-bit field" (SIGN-OPT) + 16 32 31 32 INT (#f) (#f) +) + +(dcrisf + f-indir-pc+-dword-pcrel + "[PC+] PC-relative 32-bit field, counted from start of insn" + (SIGN-OPT MACH-V32 PCREL-ADDR) + 16 32 31 32 INT + ((value pc) (sub SI value pc)) + ((value pc) (add SI pc value)) +) + +;;;;;;;;;;;;;;;;;; -insn-enum -normal-operand -normal-derived-operand + +;; How different fields are transformed into something we put in insns. + +; m := size modifier, byte (00), word (01) or dword (10) +; z := size modifier, byte (0) or word (1) +; (For the latter, the "higher" bit is always 0, mapping trivially on m.) + +(define-normal-insn-enum + insn-size + "Standard instruction operand size" + () + SIZE_ + f-size + ("BYTE" "WORD" "DWORD" "FIXED") +) + +; The mode field for insns with "s" operand (perhaps with a partial set of +; operand types). +(define-normal-insn-enum + insn-mode + "Standard instruction addressing modes" + () + MODE_ + f-mode + ("QUICK_IMMEDIATE" "REGISTER" "INDIRECT" "AUTOINCREMENT") +) + +(define-normal-insn-enum + insn-memoryness-mode + "Whether the operand is indirect" + () + MODEMEMP_ + f-membit + ("NO" "YES") +) + +; FIXME: Needed? +(define-normal-insn-enum + insn-memincness-mode + "Whether the indirect operand is autoincrement" + () + MODEINCP_ + f-memmode + ("NO" "YES") +) + +; Special semantics for multiply. +(define-pmacro MODE_MULU MODE_INDIRECT) +(define-pmacro MODE_MULS MODE_AUTOINCREMENT) + +(define-normal-insn-enum + insn-signed-size + "Signed instruction operand size" + () + SIGNED_ + f-size + ("UNDEF_SIZE_0" "UNDEF_SIZE_1" "BYTE" "WORD") +) + +(define-normal-insn-enum + insn-unsigned-size + "Unsigned instruction operand size" + () + UNSIGNED_ + f-size + ("BYTE" "WORD" "UNDEF_SIZE_2" "UNDEF_SIZE_3") +) + +; Rs := source operand, register addressing mode +(dnop Rs "Source general register" () h-gr f-source) + +; [Rs] := source operand, indirect addressing mode +; = MODE_INDIRECT Rs + +; [Rs+] := source operand, autoincrement addressing mode (see note!) +; = MODE_AUTOINCREMENT Rs + +; The union of [Rs] and [Rs(+)] +; = MODEMEMP_YES Rs + +; Whether an indirect operand is increment can be obtained as an operand by +; = inc +(dnop inc "Incrementness of indirect operand" () h-inc f-memmode) + +; or as an affirmative specifier +; = MODEINCP_YES +; (or MODEINCP_NO) + +; s := source operand, any of the modes Rs, [Rs] or [Rs+] +; No common operand; each are handled separately, using the above definitions. + +; Ps := source operand, special register +; It's in the field usually used for the destination. +(dnop Ps "Source special register" () h-sr f-dest) + +; Ss := source operand, support register +; It's in the field usually used for the destination. +(dnop Ss "Source support register" (MACH-V32) h-supr f-dest) + +; Sd := source operand, support register +(dnop Sd "Destination support register" (MACH-V32) h-supr f-dest) + +; i := 6-bit signed immediate operand +(dnop i "Quick signed 6-bit" () h-sint f-s6) + +; j := 6-bit unsigned immediate operand +(dnop j "Quick unsigned 6-bit" () h-uint f-u6) + +; c := 5-bit immediate shift value +(dnop c "Quick unsigned 5-bit" () h-uint f-u5) + +; qo := 4-bit unsigned immediate operand +(dnop qo "Quick unsigned 4-bit, PC-relative" (MACH-V32) h-addr f-qo) + +; Rd := destination operand, register addressing mode +(dnop Rd "Destination general register" () h-gr f-dest) +(define-pmacro Rd-sfield Rs) +(define-pmacro Rs-dfield Rd) + +; [Rd] := destination operand, indirect addressing mode +; = MODE_INDIRECT Rd + +; [Rd+] := destination operand, autoincrement addressing mode +; = MODE_AUTOINCREMENT Rd + +; [PC+] := destination operand PC, autoincrement addressing mode +; = MODE_AUTOINCREMENT (f-dest 15) X +; where X is one of sconst8, uconst8, sconst16, uconst16 or const32. +(dnop sconst8 "Signed byte [PC+]" () h-sint f-indir-pc+-byte) +(dnop uconst8 "Unsigned byte [PC+]" () h-uint f-indir-pc+-byte) +(dnop sconst16 "Signed word [PC+]" () h-sint f-indir-pc+-word) +(dnop uconst16 "Unsigned word [PC+]" () h-uint f-indir-pc+-word) +(dnop const32 "Dword [PC+]" () h-uint f-indir-pc+-dword) +(dnop const32-pcrel "Dword [PC+]" () h-addr f-indir-pc+-dword-pcrel) + +; d := destination operand, any of the modes Rd, [Rd] or [Rd+] +; No common operand; each are handled separately, using the above definitions. + +; Pd := destination operand, special register +(dnop Pd "Destination special register" () h-sr f-dest) + +; o := 8-bit immediate offset value +(dnop o "Signed 8-bit" () h-sint f-s8) + +; The division of operand semantics and insn fields in the CRIS +; instruction set reference doesn't permit a simple mapping to a +; simulator description, and the division of insn fields and +; semantics in CGEN is not between the define-normal-ifield +; vs. define-normal-operand. For example, the "o" operand is +; PC-relative for branch insns, as described by the CGEN f-disp9 +; field. +; See comment at f-disp9; thankfully the mach +; attribute works here to have two different definitions by the +; same name. +(dnop o-pcrel "9-bit signed immediate PC-rel" + () + h-iaddr f-disp9) + +(dnop o-word-pcrel "16-bit signed immediate PC-rel" + () + h-iaddr f-indir-pc+-word-pcrel) + +; cc := condition code +(dnop cc "Condition codes" () h-ccode f-dest) + +; n := 4 bit breakpoint exception vector index +(dnop n "Quick unsigned 4-bit" () h-uint f-u4) + +; The "option" in the SWAP insn. +(dnop swapoption "Swap option" () h-swap f-dest) + +(dnop list-of-flags "Flag bits as operand" () h-flagbits f-dstsrc) + +; Enumerations for insn codes, for use in insn definitions +; instead of raw numbers. See it as operand definitions for the +; opcode field. + +(define-normal-insn-enum + insn-qi-opc + "Insns for MODE_QUICK_IMMEDIATE" + () + Q_ + f-opcode + ("BCC_0" "BCC_1" "BCC_2" "BCC_3" + "BDAP_0" "BDAP_1" "BDAP_2" "BDAP_3" + "ADDQ" "MOVEQ" "SUBQ" "CMPQ" + "ANDQ" "ORQ" "ASHQ" "LSHQ") +) + +(define-normal-insn-enum + insn-qihi-opc + "Same as insn-qi-opc, though using only the high two bits of the opcode" + () + QHI_ + f-opcode-hi + ("BCC" "BDAP" "OTHER2" "OTHER3") +) +(define-pmacro QHI_ADDOQ QHI_BDAP) + +(define-normal-insn-enum + insn-r-opc + "Insns for MODE_REGISTER and either SIZE_BYTE, SIZE_WORD or SIZE_DWORD" + () + R_ + f-opcode + ("ADDX" "MOVX" "SUBX" "LSL" + "ADDI" "BIAP" "NEG" "BOUND" + "ADD" "MOVE" "SUB" "CMP" + "AND" "OR" "ASR" "LSR") +) +(define-pmacro R_ADDI_ACR R_BIAP) + +(define-normal-insn-enum + insn-rfix-opc + "Insns for MODE_REGISTER and SIZE_FIXED" + () + RFIX_ + f-opcode + ("ADDX" "MOVX" "SUBX" "BTST" + "SCC" "ADDC" "SETF" "CLEARF" + "MOVE_R_S" "MOVE_S_R" "ABS" "DSTEP" + "LZ" "SWAP" "XOR" "MSTEP") +) +(define-pmacro RFIX_MCP RFIX_MSTEP) + +(define-normal-insn-enum + insn-indir-opc + "Insns for (MODE_INDIRECT or MODE_AUTOINCREMENT) and either SIZE_BYTE, SIZE_WORD or SIZE_DWORD" + () + INDIR_ + f-opcode + ("ADDX" "MOVX" "SUBX" "CMPX" + "MUL" "BDAP_M" "ADDC" "BOUND" + "ADD" "MOVE_M_R" "SUB" "CMP" + "AND" "OR" "TEST" "MOVE_R_M") +) +(define-pmacro INDIR_ADDO INDIR_BDAP_M) + +(define-normal-insn-enum + insn-infix-opc + "Insns for (MODE_INDIRECT or MODE_AUTOINCREMENT) and SIZE_FIXED" + () + INFIX_ + f-opcode + ("ADDX" "MOVX" "SUBX" "CMPX" + "JUMP_M" "DIP" "JUMP_R" "BCC_M" + "MOVE_M_S" "MOVE_S_M" "BMOD" "BSTORE" + "RBF" "SBFS" "MOVEM_M_R" "MOVEM_R_M") +) + +(define-pmacro INFIX_MOVE_SS INFIX_SBFS) +(define-pmacro INFIX_LAPC INFIX_DIP) +(define-pmacro INFIX_RFE INFIX_JUMP_M) +(define-pmacro INFIX_RFN INFIX_JUMP_M) +(define-pmacro INFIX_HALT INFIX_JUMP_M) +(define-pmacro INFIX_SFE INFIX_JUMP_M) +(define-pmacro INFIX_RFG INFIX_JUMP_M) +(define-pmacro INFIX_JAS_R INFIX_JUMP_R) +(define-pmacro INFIX_JAS_M INFIX_JUMP_R) +(define-pmacro INFIX_JASC INFIX_RBF) +(define-pmacro INFIX_JUMP_P INFIX_BCC_M) +(define-pmacro INFIX_BAS INFIX_BMOD) +(define-pmacro INFIX_BASC INFIX_BSTORE) +(define-pmacro INFIX_BREAK INFIX_JUMP_M) +(define-pmacro INFIX_FIDXI INFIX_JUMP_M) +(define-pmacro INFIX_FIDXD INFIX_BAS) +(define-pmacro INFIX_FTAGI INFIX_JUMP_M) +(define-pmacro INFIX_FTAGD INFIX_BAS) + +; Classes of insns: +; Move-to-register, move-to-memory, move-to/from-other-register, +; logical, arithmetic, branch. +; Classes of operands: +; quick, register, memory-indirect, memory-postinc. + + +;;;;;;;;;;;;;;;;;; -normal-insn + +(define-pmacro (dni-bwd-attr name comment attr syntax fmt fsem timing) + (begin + (dni (.sym name .b) (.str "byte " comment) attr (.str name ".b " syntax) + (.splice (.unsplice fmt) SIZE_BYTE) + (fsem QI) + timing) + (dni (.sym name .w) (.str "word " comment) attr (.str name ".w " syntax) + (.splice (.unsplice fmt) SIZE_WORD) + (fsem HI) + timing) + (dni (.sym name .d) (.str "dword " comment) attr (.str name ".d " syntax) + (.splice (.unsplice fmt) SIZE_DWORD) + (fsem SI) + timing)) +) + +(define-pmacro (dni-cdt-attr name comment attr syntax fmt semantics) + "dni without specifying timing" + (dni name comment attr syntax fmt semantics (cris-timing)) +) + +(define-pmacro (dni-cdt-bwd-attr name comment attr syntax fmt fsem) + (begin + (dni-cdt-attr (.sym name .b-r) (.str "byte " comment) attr (.str name ".b " syntax) + (.splice (.unsplice fmt) SIZE_BYTE) + (fsem QI)) + (dni-cdt-attr (.sym name .w-r) (.str "word " comment) attr (.str name ".w " syntax) + (.splice (.unsplice fmt) SIZE_WORD) + (fsem HI)) + (dni-cdt-attr (.sym name .d-r) (.str "dword " comment) attr (.str name ".d " syntax) + (.splice (.unsplice fmt) SIZE_DWORD) + (fsem SI))) +) + +; Some convenience macros based on the above ones. +(define-pmacro (dni-cdt-bwd name comment syntax fmt fsem) + (dni-cdt-bwd-attr name comment () syntax fmt fsem) +) + +(define-pmacro (dni-bwd name comment syntax fmt fsem timing) + (dni-bwd-attr comment () syntax fmt fsem timing) +) + +(define-pmacro-map + (((dni-cdt name comment syntax fmt semantics) + (dni-cdt-attr name comment () syntax fmt semantics)) + ((dni-c-QI-attr name comment attr syntax fmt fsem) + (dni name comment attr syntax fmt fsem (cris-timing-const-QI))) + ((dni-c-HI-attr name comment attr syntax fmt fsem) + (dni name comment attr syntax fmt fsem (cris-timing-const-HI))) + ((dni-c-SI-attr name comment attr syntax fmt fsem) + (dni name comment attr syntax fmt fsem (cris-timing-const-SI)))) +) + +(define-pmacro-map + (((dni-c-QI name comment syntax fmt fsem) + (dni-c-QI-attr name comment () syntax fmt fsem)) + ((dni-c-HI name comment syntax fmt fsem) + (dni-c-HI-attr name comment () syntax fmt fsem)) + ((dni-c-SI name comment syntax fmt fsem) + (dni-c-SI-attr name comment () syntax fmt fsem))) +) + +; These flags are both cleared by all insns except prefixes (before +; CRISv32) and "setf x", so we put them in a handy macro. +(define-pmacro + (reset-x-p) + (sequence + () + (set xbit 0) + (set prefix-set 0)) +) + +; NOP | 0 0 0 0| 0 1| 0 1 0 0| 0 0| 1 1 1 1| +; (For V32, "SETF" (no flags) is used.) +(dni-cdt-attr + nop "nop" (MACH-PC) "nop" + (+ (f-operand2 0) R_ADDI MODE_REGISTER SIZE_BYTE (f-operand1 15)) + (reset-x-p) +) + +; Pre- and v32+ variants MOVE insns set flags differently. These two +; macros for flag settings are meant to be used in all MOVE insns. +(define-pmacro (setf-moveq value) + (sequence + () + (set-quiet nbit-move (lt SI value 0)) + (set-quiet zbit-move (andif BI (eq SI value 0) (if BI xbit zbit 1))) + (set-quiet cbit-move 0) + (set-quiet vbit-move 0) + (reset-x-p)) +) + +(define-pmacro (setf-move size value) + (sequence + () + (set nbit (lt size value 0)) + (set zbit (andif BI (eq size value 0) (if BI xbit zbit 1))) + (set-quiet cbit-move 0) + (set-quiet vbit-move 0) + (reset-x-p)) +) +; The CGEN binop-with-bit operations are not documented well enough that I +; trust their semantics to remain stable. Better define local ones: the +; semantics become explicit. +(define-pmacro-map + (((add-overflow size R D S carry) + (orif BI (andif BI (andif BI (lt size S 0) (lt size D 0)) (ge size R 0)) + (andif BI (andif BI (ge size S 0) (ge size D 0)) (lt size R 0)))) + ((add-carry size R D S carry) + (orif BI (andif BI (lt size S 0) (lt size D 0)) + (orif BI (andif BI (lt size D 0) (ge size R 0)) + (andif BI (lt size S 0) (ge size R 0))))) + ((sub-overflow size R D S carry) + (orif BI (andif BI (andif BI (ge size S 0) (lt size D 0)) (ge size R 0)) + (andif BI (andif BI (lt size S 0) (ge size D 0)) (lt size R 0)))) + ((sub-carry size R D S carry) + (orif BI (andif BI (lt size S 0) (ge size D 0)) + (orif BI (andif BI (ge size D 0) (lt size R 0)) + (andif BI (lt size S 0) (lt size R 0))))) + ; Only valid for size := DI + ((mulu-overflow size R D S carry) + (ne DI R (zext DI (trunc SI R)))) + ((mulu-carry size R D S carry) + (andif current-mach-is-v32 carry)) + ((muls-overflow size R D S carry) + (ne DI R (ext DI (trunc SI R)))) + ((muls-carry size R D S carry) + (andif current-mach-is-v32 carry))) +) + +(define-pmacro (setf-arit2 size op source1 source2 result carryin carryout) + "Set no-prefix, x=0, carryout, v, z and n according to operation OP in size SIZE" + (sequence + () + (set carryout ((.sym op -carry) size result source1 source2 carryin)) + (set nbit (lt size result 0)) + (set zbit (andif BI (eq size result 0) (orif BI zbit (not BI xbit)))) + (set vbit ((.sym op -overflow) size result source1 source2 carryin)) + (reset-x-p)) +) +(define-pmacro (setf-arit size op source1 source2 result carry) + "Set no-prefix, x=0, c, v, z and n according to operation OP in size SIZE" + (setf-arit2 size op source1 source2 result carry cbit) +) + +; Let's have convienence macros for arithmetic, including evaluation of the +; operation, destination modification, flag setting and carry propagation. +(define-pmacro + (cris-arit6-int arit size fdest fdest_op srcop1 srcop2 carryout carryin) + "Core for performing some three-operand arithmetic with carry as parameter" + (sequence + ((size tmpopd) (size tmpops) (BI carry) (size newval)) + (set tmpops srcop2) + (set tmpopd srcop1) + (set carry carryin) + (set newval ((.sym arit c) tmpopd tmpops (if BI (eq xbit 0) 0 carry))) + (fdest size fdest_op newval) + (setf-arit2 size arit tmpopd tmpops newval carry carryout)) +) + +(define-pmacro + (cris-arit5-int arit size destregno srcop1 srcop2 carryout carryin) + "As cris-arit6-int, but to set a part of a general register" + (cris-arit6-int + arit + size + (.pmacro (sz regno val) (set-subreg-gr sz regno val)) + destregno + srcop1 + srcop2 + carryout + carryin) +) + +(define-pmacro (cris-arit5 arit size destreg srcop1 srcop2 carryout carryin) + "As cris-arit5-int, but takes a register as parameter, not register number" + (cris-arit5-int arit size (regno destreg) srcop1 srcop2 carryout carryin) +) +(define-pmacro (cris-arit3-int arit size destregno srcop1 srcop2) + "As cris-arit5-int, but with carry-in same as carry-out" + (cris-arit5-int arit size destregno srcop1 srcop2 cbit cbit) +) +(define-pmacro (cris-arit3 arit size destreg srcop1 srcop2) + "As cris-arit3-int, but takes a register as parameter, not register number" + (cris-arit3-int arit size (regno destreg) srcop1 srcop2) +) +(define-pmacro (cris-arit arit size destreg srcop) + "As cris-arit3, but with destination same as srcop1" + (cris-arit3 arit size destreg destreg srcop) +) +(define-pmacro (cris-arit-3op arit size destsrcop2 srcop1 dest-3op) + "Similar to cris-arit3-int, but for prefixed operand only" + (cris-arit3-int arit size + (if SI (andif prefix-set (not inc)) + (regno dest-3op) + (regno destsrcop2)) + destsrcop2 srcop1) +) + +; Convenience macros to select a part of a value and its complement, for +; the <op>.b, <op>.w and <op>.d operations. +(define-pmacro (QI-part val) (and SI val #xff)) +(define-pmacro (non-QI-part val) (and SI val #xffffff00)) +(define-pmacro (HI-part val) (and SI val #xffff)) +(define-pmacro (non-HI-part val) (and SI val #xffff0000)) +(define-pmacro (SI-part val) val) +(define-pmacro (non-SI-part val) 0) +(define-pmacro + (set-subreg-gr-bw BWD gregno newval) + "Set a byte or word part or full dword of a general register" + (sequence + ((SI oldregval)) + (set oldregval (reg h-raw-gr gregno)) + (set (reg h-gr gregno) + (or SI ((.sym BWD -part) newval) ((.sym non- BWD -part) oldregval)))) +) +(define-pmacro (set-subreg-gr BWD gregno newval) + ((.sym set-subreg-gr- BWD) BWD gregno newval) +) +(define-pmacro (set-subreg-gr-SI SI gregno newval) + (set (reg h-gr gregno) newval) +) +(define-pmacro set-subreg-gr-HI set-subreg-gr-bw) +(define-pmacro set-subreg-gr-QI set-subreg-gr-bw) + +; MOVE.m Rs,Rd [ Rd | 011001mm | Rs ] +(dni-cdt-bwd + move "move.m r,R" + "move.m ${Rs},${Rd}" + (+ Rd MODE_REGISTER R_MOVE Rs) + (.pmacro + (BWD) + (sequence + ((BWD newval)) + (set newval Rs) + (set-subreg-gr BWD (regno Rd) newval) + (setf-move BWD newval))) +) + +; MOVE.D PC,Rd [ Rd | 01100110 | 1111 ] +; This insn is used in PIC code to find out the code address. It's an +; exception to the (guarded) non-implementation of PC operands in this +; file. +(dni-cdt-attr + movepcr "move.d PC,R" + (MACH-PC UNCOND-CTI) + "move.d PC,${Rd}" + (+ Rd MODE_REGISTER R_MOVE SIZE_DWORD (f-source 15)) + (sequence + ((SI pcval)) + (set pcval (add SI pc 2)) + (set Rd pcval) + (setf-move SI pcval)) +) + +; MOVEQ i,Rd [ Rd | 001001 | i ] +(dni-cdt + moveq "moveq" + "moveq $i,$Rd" + (+ Rd MODE_QUICK_IMMEDIATE Q_MOVEQ i) + (sequence + ((SI newval)) + (set newval i) + (set Rd newval) + (setf-moveq newval)) +) + +(define-pmacro (dni-cdt-sbw name comment syntax fmt fsem) + "Insn generator for insns with signed <op>.b and <op>.w variants" + (begin + (dni-cdt + (.sym name .b-r) (.str "byte " comment) (.str name ".b " syntax) + (.splice (.unsplice fmt) SIGNED_BYTE) + (fsem QI)) + (dni-cdt + (.sym name .w-r) (.str "word " comment) (.str name ".w " syntax) + (.splice (.unsplice fmt) SIGNED_WORD) + (fsem HI))) +) + +; MOVS.z Rs,Rd [ Rd | 0100011z | Rs ] +(dni-cdt-sbw + movs "movs.m r,R" + "movs.m ${Rs},${Rd}" + (+ Rd MODE_REGISTER R_MOVX Rs) + (.pmacro + (BW) + (sequence + ((BW newval)) + (set newval Rs) + (set Rd (ext SI newval)) + (setf-move SI newval))) +) + +(define-pmacro (dni-cdt-ubw name comment syntax fmt fsem) + "Similar to dni-cdt-sbw but for unsigned operations" + (begin + (dni-cdt + (.sym name .b-r) (.str "byte " comment) (.str name ".b " syntax) + (.splice (.unsplice fmt) UNSIGNED_BYTE) + (fsem QI)) + (dni-cdt + (.sym name .w-r) (.str "word " comment) (.str name ".w " syntax) + (.splice (.unsplice fmt) UNSIGNED_WORD) + (fsem HI))) +) + +; MOVU.z Rs,Rd [ Rd | 0100010z | Rs ] +(dni-cdt-ubw + movu "movu.m r,R" + "movu.m ${Rs},${Rd}" + (+ Rd MODE_REGISTER R_MOVX Rs) + (.pmacro + (BW) + (sequence + ((BW newval)) + (set newval Rs) + (set Rd (zext SI newval)) + (setf-move SI newval))) +) + +; (MOVE.m [PC+],Rd [ Rd | 111001mm | 1111 ]) +; For the moment, it doesn't seem worthwhile to make a dni-c-bwd macro; +; too many places to parametrize. +(dni-c-QI + movecbr "move.b [PC+],R" + "move.b ${sconst8},${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_MOVE_M_R SIZE_BYTE (f-source 15) sconst8) + (sequence + ((QI newval)) + (set newval sconst8) + (set-subreg-gr QI (regno Rd) newval) + (setf-move QI newval)) +) + +(dni-c-HI + movecwr "move.w [PC+],R" + "move.w ${sconst16},${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_MOVE_M_R SIZE_WORD (f-source 15) sconst16) + (sequence + ((HI newval)) + (set newval sconst16) + (set-subreg-gr HI (regno Rd) newval) + (setf-move HI newval)) +) + +(dni-c-SI + movecdr "move.d [PC+],R" + "move.d ${const32},${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_MOVE_M_R SIZE_DWORD (f-source 15) const32) + (sequence + ((SI newval)) + (set newval const32) + (set Rd newval) + (setf-move SI newval)) +) + +; (MOVS.z [PC+],Rd [ Rd | 1100011z | 1111 ]) +; Similarly, no likely net improvement for a dni-c-bw. +(dni-c-QI + movscbr "movs.b [PC+],R" + "movs.b ${sconst8},${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_MOVX SIGNED_BYTE (f-source 15) sconst8) + (sequence + ((SI newval)) + ; FIXME: Make trunc unnecessary. + (set newval (ext SI (trunc QI sconst8))) + (set Rd newval) + (setf-move SI newval)) +) + +(dni-c-HI + movscwr "movs.w [PC+],R" + "movs.w ${sconst16},${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_MOVX SIGNED_WORD (f-source 15) sconst16) + (sequence + ((SI newval)) + ; FIXME: Make trunc unnecessary. + (set newval (ext SI (trunc HI sconst16))) + (set Rd newval) + (setf-move SI newval)) +) + +; (MOVU.z [PC+],Rd [ Rd | 1100010z | 1111 ]) +(dni-c-QI + movucbr "movu.b [PC+],R" + "movu.b ${uconst8},${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_MOVX UNSIGNED_BYTE (f-source 15) uconst8) + (sequence + ((SI newval)) + ; FIXME: Make trunc unnecessary. + (set newval (zext SI (trunc QI uconst8))) + (set Rd newval) + (setf-move SI newval)) +) + +(dni-c-HI + movucwr "movu.w [PC+],R" + "movu.w ${uconst16},${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_MOVX UNSIGNED_WORD (f-source 15) uconst16) + (sequence + ((SI newval)) + ; FIXME: Make trunc unnecessary. + (set newval (zext SI (trunc HI uconst16))) + (set Rd newval) + (setf-move SI newval)) +) + +; ADDQ j,Rd [ Rd | 001000 | j ] +(dni-cdt + addq "addq j,Rd" + "addq $j,$Rd" + (+ Rd MODE_QUICK_IMMEDIATE Q_ADDQ j) + (cris-arit add SI Rd j) +) + +; SUBQ j,Rd [ Rd | 001010| j ] +(dni-cdt + subq "subq j,Rd" + "subq $j,$Rd" + (+ Rd MODE_QUICK_IMMEDIATE Q_SUBQ j) + (cris-arit sub SI Rd j) +) + +; Convenience macros for insns with a memory operand. +(define-pmacro + (dni-cmt-attr-tim name comment attr syntax fmt semantics timing) + "dni with memory-access" + (dni name comment attr syntax + ; Specifying MODE_INDIRECT and MODE_AUTOINCREMENT in this + ; manner makes the autoincrementness handily available. + ; It also effectively excludes non-memory use of dni-cmt. + (.splice (.unsplice fmt) MODEMEMP_YES inc) + semantics + timing) +) + +(define-pmacro (dni-cmt-attr name comment attr syntax fmt semantics) + "dni with read memory-access timing" + (dni-cmt-attr-tim name comment attr syntax fmt semantics + (cris-mem-timing)) +) + +(define-pmacro (dni-cmwt-attr name comment attr syntax fmt semantics) + "dni with write memory-access timing" + (dni-cmt-attr-tim name comment attr syntax fmt semantics + (cris-mem-write-timing)) +) + +(define-pmacro QI-size 1) +(define-pmacro HI-size 2) +(define-pmacro SI-size 4) + +(define-pmacro (cris-get-mem size regop) + "Handle reading memory in <size>, with source address register\ + (read once, maybe set once) in <regop> or prefixed" + (sequence + size + ((SI addr) (size tmp-mem) (BI postinc)) + + ; Cache the incrementness of the operand. + (set postinc inc) + + ; Get the address from somewhere. + (set addr + (if SI (eq prefix-set 0) + ; If the insn was prefixed, it's in the prefix-register. + regop + prefixreg)) + + ; Get the memory contents. + (set tmp-mem (mem size addr)) + + ; For non-prefixed post-increment, we increment the address by the + ; size of the memory access. + (if (ne postinc 0) + (sequence + () + (if (eq prefix-set 0) + (set addr (add addr (.sym size -size)))) + ; Update the source-register for post-increments. + (set regop addr))) + + ; Don't forget the return-value. + tmp-mem) +) + +(define-pmacro (cris-set-mem size regop value) + "Handle writing <value> of <size> to memory, with memory address register\ + (read once, maybe set once) in <regop> or prefixed." + (sequence + ((SI addr) (BI postinc)) + + ; Cache the incrementness of the operand. + (set postinc inc) + + ; Get the address from somewhere. + (set addr + (if SI (eq prefix-set 0) + ; If the insn was prefixed, it's in the prefix-register. + regop + prefixreg)) + + ; Set the memory contents. Integral-write semantics apply. + ; FIXME: currently v32 only; when proper semantics needed, fix v10. + (if (andif current-mach-is-v32 (ne xbit 0)) + (if (eq pbit 0) + (sequence + () + (set (mem size addr) value) + (set cbit 0)) + (set cbit 1)) + (set (mem size addr) value)) + + ; For non-prefixed post-increment, we increment the address by the + ; size of the memory access. As for the integral-write, this needs to + ; be tweaked for pre-v32: increment should have been performed if + ; there's a fault at the memory access above. + (if (ne postinc 0) + (sequence + () + (if (eq prefix-set 0) + (set addr (add addr (.sym size -size)))) + ; Update the source-register for post-increments. + (set regop addr)))) +) + +(define-pmacro + (dni-cmt-bwd-attr-tim name comment attr syntax fmt fsem timing) + "Core generator macro for insns with <op>.b, <op>.w and <op>.d variants\ + and a memory operand." + (begin + (dni-cmt-attr-tim + (.sym name .b-m) + (.str "byte mem " comment) + attr + (.str name ".b " syntax) + (.splice (.unsplice fmt) SIZE_BYTE) + (fsem QI) + timing) + (dni-cmt-attr-tim + (.sym name .w-m) + (.str "word mem " comment) + attr + (.str name ".w " syntax) + (.splice (.unsplice fmt) SIZE_WORD) + (fsem HI) + timing) + (dni-cmt-attr-tim + (.sym name .d-m) + (.str "dword mem " comment) + attr + (.str name ".d " syntax) + (.splice (.unsplice fmt) SIZE_DWORD) + (fsem SI) + timing)) +) + +; Further refinement macros. +(define-pmacro (dni-cmt-bwd-attr name comment attr syntax fmt fsem) + (dni-cmt-bwd-attr-tim name comment attr syntax fmt fsem + (cris-mem-timing)) +) + +(define-pmacro (dni-cmwt-bwd name comment syntax fmt fsem) + (dni-cmt-bwd-attr-tim name comment () syntax fmt fsem + (cris-mem-write-timing)) +) + +(define-pmacro (dni-cmt-bwd name comment syntax fmt fsem) + (dni-cmt-bwd-attr name comment () syntax fmt fsem) +) + +(define-pmacro (dni-cmt-sbw name comment syntax fmt fsem) + "Core generator macro for insns with <op>.b and <op>.w variants\ + and a signed memory operand." + (begin + (dni-cmt-attr + (.sym name .b-m) (.str "byte mem " comment) + () + (.str name ".b " syntax) + (.splice (.unsplice fmt) SIGNED_BYTE) + (fsem QI)) + (dni-cmt-attr + (.sym name .w-m) (.str "word mem " comment) + () + (.str name ".w " syntax) + (.splice (.unsplice fmt) SIGNED_WORD) + (fsem HI))) +) + +(define-pmacro (dni-cmt-ubw name comment syntax fmt fsem) + "Core generator macro for insns with <op>.b and <op>.w variants\ + and an unsigned memory operand." + (begin + (dni-cmt-attr + (.sym name .b-m) (.str "byte mem " comment) + () + (.str name ".b " syntax) + (.splice (.unsplice fmt) UNSIGNED_BYTE) + (fsem QI)) + (dni-cmt-attr + (.sym name .w-m) (.str "word mem " comment) + () + (.str name ".w " syntax) + (.splice (.unsplice fmt) UNSIGNED_WORD) + (fsem HI))) +) + +; CMP.m Rs,Rd [ Rd | 011011mm | Rs ] +(dni-cdt-bwd + cmp-r "compare register to register" + "$Rs,$Rd" + (+ Rd MODE_REGISTER R_CMP Rs) + (.pmacro + (BWD) + (cris-arit6-int + sub BWD (.pmacro (sz regno val) (nop)) 0 + Rd Rs cbit cbit)) +) + +; CMP.m [Rs],Rd [ Rd | 101011mm | Rs ] +; CMP.m [Rs+],Rd [ Rd | 111011mm | Rs ] +(dni-cmt-bwd + cmp-m "compare memory to register" + "[${Rs}${inc}],${Rd}" + (+ INDIR_CMP Rs Rd) + (.pmacro + (BWD) + (cris-arit6-int + sub BWD (.pmacro (sz regno val) (nop)) 0 + Rd (cris-get-mem BWD Rs) cbit cbit)) +) + +; (CMP.m [PC+],Rd [ Rd | 111011mm | 1111 ]) +(dni-c-QI + cmpcbr "cmp constant byte to register" + "cmp.b $sconst8,$Rd" + (+ Rd MODE_AUTOINCREMENT INDIR_CMP SIZE_BYTE (f-source 15) sconst8) + (cris-arit6-int + sub QI (.pmacro (sz regno val) (nop)) 0 + Rd (trunc QI sconst8) cbit cbit) +) + +(dni-c-HI + cmpcwr "cmp constant word to register" + "cmp.w $sconst16,$Rd" + (+ Rd MODE_AUTOINCREMENT INDIR_CMP SIZE_WORD (f-source 15) sconst16) + (cris-arit6-int + sub HI (.pmacro (sz regno val) (nop)) 0 + Rd (trunc HI sconst16) cbit cbit) +) + +(dni-c-SI + cmpcdr "cmp constant dword to register" + "cmp.d $const32,$Rd" + (+ Rd MODE_AUTOINCREMENT INDIR_CMP SIZE_DWORD (f-source 15) const32) + (cris-arit6-int + sub SI (.pmacro (sz regno val) (nop)) 0 + Rd const32 cbit cbit) +) + +; CMPQ i,Rd [ Rd | 001011 | i ] +(dni-cdt + cmpq "cmpq i,Rd" + "cmpq $i,$Rd" + (+ Rd MODE_QUICK_IMMEDIATE Q_CMPQ i) + (cris-arit6-int + sub SI (.pmacro (sz regno val) (nop)) 0 + Rd i cbit cbit) +) + +; CMPS.z [Rs],Rd [ Rd | 1000111z | Rs ] +; CMPS.z [Rs+],Rd [ Rd | 1100111z | Rs ] +(dni-cmt-sbw + cmps-m "cmp sign-extended from memory to register" + "[${Rs}${inc}],$Rd" + (+ Rd INDIR_CMPX Rs) + (.pmacro + (BW) + (cris-arit6-int + sub SI (.pmacro (sz regno val) (nop)) 0 + Rd ((.sym BW -ext) (cris-get-mem BW Rs)) cbit cbit)) +) + +; (CMPS.z [PC+],Rd [ Rd | 1100111z | 1111 ]) +(dni-c-QI + cmpscbr "cmp sign-extended constant byte to register" + "[${Rs}${inc}],$Rd" + (+ Rd MODE_AUTOINCREMENT INDIR_CMPX SIGNED_BYTE (f-source 15) sconst8) + (cris-arit6-int + sub SI (.pmacro (sz regno val) (nop)) 0 + Rd (ext SI (trunc QI sconst8)) cbit cbit) +) +(dni-c-HI + cmpscwr "cmp sign-extended constant word to register" + "[${Rs}${inc}],$Rd" + (+ Rd MODE_AUTOINCREMENT INDIR_CMPX SIGNED_WORD (f-source 15) sconst16) + (cris-arit6-int + sub SI (.pmacro (sz regno val) (nop)) 0 + Rd (ext SI (trunc HI sconst16)) cbit cbit) +) + +; CMPU.z [Rs],Rd [ Rd | 1000110z | Rs ] +; CMPU.z [Rs+],Rd [ Rd | 1100110z | Rs ] +(dni-cmt-ubw + cmpu-m "cmp zero-extended from memory to register" + "[${Rs}${inc}],$Rd" + (+ Rd INDIR_CMPX Rs) + (.pmacro + (BW) + (cris-arit6-int + sub SI (.pmacro (sz regno val) (nop)) 0 + Rd ((.sym BW -zext) (cris-get-mem BW Rs)) cbit cbit)) +) + +; (CMPU.z [PC+],Rd [ Rd | 1100110z | 1111 ]) +(dni-c-QI + cmpucbr "cmp zero-extended constant byte to register" + "[${Rs}${inc}],$Rd" + (+ Rd MODE_AUTOINCREMENT INDIR_CMPX UNSIGNED_BYTE (f-source 15) uconst8) + (cris-arit6-int + sub SI (.pmacro (sz regno val) (nop)) 0 + Rd (zext SI (trunc QI uconst8)) cbit cbit) +) +(dni-c-HI + cmpucwr "cmp zero-extended constant word to register" + "[${Rs}${inc}],$Rd" + (+ Rd MODE_AUTOINCREMENT INDIR_CMPX UNSIGNED_WORD (f-source 15) uconst16) + (cris-arit6-int + sub SI (.pmacro (sz regno val) (nop)) 0 + Rd (zext SI (trunc HI uconst16)) cbit cbit) +) + +; MOVE.m [Rs],Rd [ Rd | 101001mm | Rs ] +; MOVE.m [Rs+],Rd [ Rd | 111001mm | Rs ] +(dni-cmt-bwd + move-m "move from memory to register" + "[${Rs}${inc}],${Rd}" + (+ INDIR_MOVE_M_R Rs Rd) + (.pmacro + (BWD) + (sequence + ((SI tmp)) + (set tmp (cris-get-mem BWD Rs)) + (set-subreg-gr + BWD + (if SI (andif prefix-set (not inc)) (regno Rs) (regno Rd)) + tmp) + (setf-move BWD tmp))) +) + +; MOVS.z [Rs],Rd [ Rd | 1000011z | Rs ] +; MOVS.z [Rs+],Rd [ Rd | 1100011z | Rs ] +(dni-cmt-sbw + movs-m "movs from memory to register" + "[${Rs}${inc}],${Rd}" + (+ INDIR_MOVX Rs Rd) + (.pmacro + (BW) + (sequence + ((SI tmp)) + (set tmp (ext SI (cris-get-mem BW Rs))) + (if (andif prefix-set (not inc)) + (set Rs tmp) + (set Rd tmp)) + (setf-move SI tmp))) +) + +; MOVU.z [Rs],Rd [ Rd | 1000010z | Rs ] +; MOVU.z [Rs+],Rd [ Rd | 1100010z | Rs ] +(dni-cmt-ubw + movu-m "movu from memory to register" + "[${Rs}${inc}],${Rd}" + (+ INDIR_MOVX Rs Rd) + (.pmacro + (BW) + (sequence + ((SI tmp)) + (set tmp (zext SI (cris-get-mem BW Rs))) + (if (andif prefix-set (not inc)) + (set Rs tmp) + (set Rd tmp)) + (setf-move SI tmp))) +) + +; MOVE Rs,Pd [ Pd | 01100011 | Rs ] +(.splice + begin + (.unsplice + (.map + (.pmacro + (VER) + (dni + (.sym move-r-spr VER) + "Move from general register to special register" + ((MACH (.sym cris VER))) + "move ${Rs},${Pd}" + (+ RFIX_MOVE_R_S MODE_REGISTER SIZE_FIXED Rs Pd) + (sequence + ((SI tmp) (SI rno)) + (set tmp Rs) + (set rno (regno Pd)) + (cond + ; See reg-sr setter for most of the special-register semantics. + ; The sanity check for known read-only registers is for program + ; debug help; the real insn would be harmless and have no effect. + ; CGEN-FIXME: regno of symbolic h-sr names doesn't work here. + ((orif (orif (eq rno 0) (eq rno 1)) (orif (eq rno 4) (eq rno 8))) + (error "move-r-spr: trying to set a read-only special register")) + (else (set Pd tmp))) + (reset-x-p)) + (cris-reg-sr-timing))) + (cris-cpu-models))) +) + +(define-pmacro (dni-cdt-ver-attr name comment fattr syntax fmt fsem) + "Generator for each MACH, using default timing." + (.splice + begin + (.unsplice + (.map + (.pmacro (v) (dni-cdt-attr name comment (fattr v) syntax fmt (fsem v))) + (cris-cpu-models)))) +) + +; MOVE Ps,Rd [ Ps | 01100111 | Rd ] +; Note that in the insn format, the Rd operand is in the Rs field (the +; Rd field by the definition used everywhere else is the Ps position in +; this insn). +; It gets a little weird here because we can't get this insn into a +; define-pmacro unless we make named pmacros for e.g. a separate attr +; function and a semantics function: a .pmacro can't refer to the +; parameters of the outer define-pmacro. (The manual refers to this as +; not implementing "lexical scoping"). +(.splice + begin + (.unsplice + (.map + (.pmacro + (VER) + (dni-cdt-attr + (.sym move-spr-r VER) + "Move from special register to general register" + ((MACH (.sym cris VER))) + "move ${Ps},${Rd-sfield}" + (+ Ps RFIX_MOVE_S_R MODE_REGISTER SIZE_FIXED Rd-sfield) + (sequence + ((SI grno) (SI prno) (SI newval)) + (set prno (regno Ps)) + ; CGEN-FIXME: Can't use the following and then "grno" below because + ; CGEN will emit a "tmp_grno" *also* in decodev32.c:crisv32f_decode + ; (set grno (regno Rd-sfield)) + (set newval Ps) + (.splice + cond + (.unsplice + (.map + (.pmacro + (r) + ((eq prno (.cadr2 r)) + (set-subreg-gr (.car2 r) (regno Rd-sfield) newval))) + ((.sym cris-implemented-specregs- VER)))) + (else (error "move-spr-r from unimplemented register"))) + (reset-x-p)))) + (cris-cpu-models))) +) + +; MOVE Ps,PC [ Ps | 01100111 | 1111 ] +; The move-special-register-to-pc insns are return-type instructions and +; have to be special-cased to get the delay-slot and avoid being indicated +; as invalid. +(dni-cdt-attr + ret-type + "ret-type" + (MACH-PC) + "ret/reti/retb" + (+ Ps MODE_REGISTER RFIX_MOVE_S_R SIZE_FIXED (f-source 15)) + (sequence + ((SI retaddr)) + (set retaddr Ps) + (reset-x-p) + (delay 1 (set pc retaddr))) +) + +; MOVE [Rs],Pd [ Pd | 10100011 | Rs ] +; MOVE [Rs+],Pd [ Pd | 11100011 | Rs ] +; We make variants that loads constants or memory for each MACH version, +; since each consider some subset of the "special registers" to have +; different sizes. FIXME: Should be able to simplify this. +(.splice + begin + (.unsplice + (.map + (.pmacro + (VER) + (dni + (.sym move-m-spr VER) + "Move from memory to special register" + ((MACH (.sym cris VER))) + "move [${Rs}${inc}],${Pd}" + (+ Pd INFIX_MOVE_M_S MODEMEMP_YES inc SIZE_FIXED Rs) + (sequence + ((SI rno) (SI newval)) + (set rno (regno Pd)) + (.splice + cond + ; No sanity check for constant special register here, since the + ; memory read side-effect or post-increment may be the goal, or + ; for pre-v32 a prefix assignment side-effect. + (.unsplice + (.map + (.pmacro + (r) + ((eq rno (.cadr2 r)) + (set newval ((.sym (.car2 r) -ext) (cris-get-mem (.car2 r) Rs))))) + ((.sym cris-implemented-specregs- VER)))) + (else (error "Trying to set unimplemented special register"))) + (set Pd newval) + (reset-x-p)) + (cris-mem-sr-timing))) + (cris-cpu-models))) +) + +(define-pmacro QI-operand sconst8) +(define-pmacro HI-operand sconst16) +(define-pmacro SI-operand const32) + +(define-pmacro + (cris-move-c-spr VER VERFN) + "Generator for loading constant into special register" + (.splice + begin + (.unsplice + (.map + (.pmacro + (srdef v) + (dni + (.sym move-c-spr v -p (.cadr2 srdef)) + (.str "Move constant to special register p" (.cadr2 srdef)) + ((MACH (.sym cris v))) + (.str "move ${" (.sym (.car2 srdef) -operand) "},${Pd}") + ; We use Pd in semantics without naming it in the format (which + ; would CGEN-FIXME: cause a CGEN error for some reason, likely + ; related to specifying an insn field multiple times). This + ; currently works and is guarded with test-cases (specifically + ; wrt. the timing model) but may need to be tweaked in the future. + ; Note that using instead (ifield f-dest) causes incorrect timing + ; model to be generated; the timing model requires that Pd is set. + (+ (f-dest (.cadr2 srdef)) MODE_AUTOINCREMENT INFIX_MOVE_M_S SIZE_FIXED + (f-source 15) (.sym (.car2 srdef) -operand)) + (sequence + () + (set Pd (.sym (.car2 srdef) -operand)) ; (reg h-sr (.cadr2 srdef)) + (reset-x-p)) + ((.sym cris-timing-const-sr- (.car2 srdef))))) + ((.sym cris-implemented-specregs-const- VER)) + (.map VERFN ((.sym cris-implemented-specregs-const- VER)))))) +) + +; CGEN-FIXME: +; Unfortunately we can't iterate over the list of models due to the +; problem with referring to the parameters of a surrounding pmacro from +; within an enclosed .pmacro (perhaps related to "lexical scoping"). +; We get e.g. 'insn already defined:: (move-c-sprvn-p0)' with this: +;(.splice +; begin (.unsplice (.map (.pmacro (vn) (cris-move-c-spr vn (.pmacro (x) vn))) +; (cris-cpu-models))) +;) +(cris-move-c-spr v0 (.pmacro (x) v0)) +(cris-move-c-spr v3 (.pmacro (x) v3)) +(cris-move-c-spr v8 (.pmacro (x) v8)) +(cris-move-c-spr v10 (.pmacro (x) v10)) +(cris-move-c-spr v32 (.pmacro (x) v32)) + +; MOVE Ps,[Rd] [ Ps | 10100111 | Rd ] +; MOVE Ps,[Rd+] [ Ps | 11100111 | Rd ] +(.splice + begin + (.unsplice + (.map + (.pmacro + (VER) + (dni-cmwt-attr + (.sym move-spr-m VER) + "Move from special register to memory" + ((MACH (.sym cris VER))) + "move ${Ps},[${Rd-sfield}${inc}]" + (+ INFIX_MOVE_S_M SIZE_FIXED Rd-sfield Ps) + (sequence + ((SI rno)) + (set rno (regno Ps)) + (.splice + cond + (.unsplice + (.map + (.pmacro + (r) + ((eq rno (.cadr2 r)) + (cris-set-mem (.car2 r) Rd-sfield Ps))) + ((.sym cris-implemented-specregs- VER)))) + (else (error "write from unimplemented special register"))) + (reset-x-p)))) + (cris-cpu-models))) +) + +; SBFS [Rs(+)] +; Instruction format: |0 0 1 1 1 m 1 1 0 1 1 1| Dest. | +(dni-cdt-attr + sbfs + "sbfs" + ((MACH crisv10)) + "sbfs [${Rd-sfield}${inc}]" + (+ (f-dest 3) INFIX_SBFS SIZE_FIXED MODEMEMP_YES inc Rd-sfield) + (error "SBFS isn't implemented") +) + +; MOVE Ss,Rd [ Ss | 11110111 | Rd ] +(dni-cdt-attr + move-ss-r + "move from support register to general register" + (MACH-V32) + "move ${Ss},${Rd-sfield}" + (+ Ss INFIX_MOVE_SS SIZE_FIXED (f-mode 3) Rd-sfield) + (sequence + () + (set Rd-sfield Ss) + (reset-x-p)) +) + +; MOVE Rs,Sd [ Sd | 10110111 | Rs ] +(dni-cdt-attr + move-r-ss + "move from general register to support register" + (MACH-V32) + "move ${Rs},${Sd}" + (+ Sd INFIX_MOVE_SS SIZE_FIXED (f-mode 2) Rs) + (sequence + () + (set Sd Rs) + (reset-x-p)) +) + +; MOVEM Rs,[Rd] [ Rs | 10111111 | Rd ] +; MOVEM Rs,[Rd+] [ Rs | 11111111 | Rd ] + +(define-pmacro (movem-to-mem-step regn) + ; Without the SI attribute, UINT is generated, which isn't supported by + ; the sim framework. + (if (ge SI (regno Rs-dfield) regn) + (sequence + ((SI tmp)) + (set tmp (reg h-gr regn)) + (set (mem SI addr) tmp) + (set addr (add addr 4)))) +) + +(dni + movem-r-m + "movem to memory" + (MACH-PRE-V32) + "movem ${Rs-dfield},[${Rd-sfield}${inc}]" + (+ INFIX_MOVEM_R_M MODEMEMP_YES inc SIZE_FIXED Rs-dfield Rd-sfield) + (sequence + ((SI addr) (BI postinc)) + ; FIXME: A copy of what's in cris-get-mem. + + ; Cache the incrementness of the operand. + (set postinc inc) + + ; CGEN-FIXME: Kludge to work around a CGEN bug: it doesn't see that + ; Rs-dfield is used as an input, causing the timing model to be wrong. + (sequence ((SI dummy)) (set dummy Rs-dfield)) + + ; Get the address from somewhere. If the insn was prefixed, it's in + ; the prefix-register. + (set addr + (if SI (eq prefix-set 0) + Rd-sfield + prefixreg)) + + (.splice + sequence () + (.unsplice (.map movem-to-mem-step (.iota 16 15 -1)))) + + ; Update the source-register for post-increments. + (if (ne postinc 0) + (set Rd-sfield + (if SI (eq prefix-set 0) addr prefixreg))) + (reset-x-p)) + (simplecris-movem-timing) +) + +(dni + movem-r-m-v32 + "movem to memory" + (MACH-V32) + "movem ${Rs-dfield},[${Rd-sfield}${inc}]" + (+ INFIX_MOVEM_R_M MODEMEMP_YES inc SIZE_FIXED Rs-dfield Rd-sfield) + (sequence + ((SI addr) (BI postinc)) + ; FIXME: Mostly a copy of what's in cris-get-mem. + + ; Cache the incrementness of the operand. + (set postinc inc) + + ; CGEN-FIXME: See movem-r-m. + (sequence ((SI dummy)) (set dummy Rs-dfield)) + + (set addr Rd-sfield) + + (.splice + sequence () + (.unsplice (.map movem-to-mem-step (.iota 16)))) + + ; Update the source-register for post-increments. + (if (ne postinc 0) + (set Rd-sfield addr)) + (reset-x-p)) + ; Unit u-mem must be specified before the u-movem-* for memory address + ; register stall count to be right. + ((crisv32 (unit u-mem) (unit u-movem-rtom) (unit u-exec-movem) + (unit u-mem-w))) +) + +; MOVEM [Rs],Rd [ Rd | 10111011 | Rs ] +; MOVEM [Rs+],Rd [ Rd | 11111011 | Rs ] + +(define-pmacro + (movem-to-reg-step regn) + ; Without the SI attribute, UINT is generated, which isn't supported by + ; the sim framework. + (if (ge SI (regno Rd) regn) + (sequence + ((SI tmp)) + (set tmp (mem SI addr)) + (set (reg h-gr regn) tmp) + (set addr (add addr 4)))) +) + +(dni + movem-m-r + "movem to register" + (MACH-PRE-V32) + "movem [${Rs}${inc}],${Rd}" + (+ Rd INFIX_MOVEM_M_R MODEMEMP_YES inc SIZE_FIXED Rs) + (sequence + ((SI addr) (BI postinc)) + ; FIXME: Mostly a copy of what's in cris-get-mem. + + ; Cache the incrementness of the operand. + (set postinc inc) + + ; Get the address from somewhere. If the insn was prefixed, it's in + ; the prefix-register. + (set addr + (if SI (eq prefix-set 0) + Rs + prefixreg)) + + ; CGEN-FIXME: See movem-r-m. + (sequence ((SI dummy)) (set dummy Rd)) + + (.splice + sequence () + ; The first movem step is left out because it can't happen; it's for + ; PC destination. See the pattern below. + (.unsplice (.map movem-to-reg-step (.iota 15 14 -1)))) + + ; Update the source-register for post-increments. + ; FIXME: No postinc-prefixed for v0 IIRC. + (if (ne postinc 0) + (set Rs (if SI (eq prefix-set 0) addr prefixreg))) + (reset-x-p)) + (simplecris-movem-timing) +) + +; (MOVEM [Rs],PC [ 1111 | 10111011 | Rs ]) +; (MOVEM [Rs+],PC [ 1111 | 11111011 | Rs ]) +; We have to special-case it for PC destination; used in longjump. +; We shouldn't *have* to special-case it; the main reason is (FIXME:) +; misgeneration of the simulator when the PC case is folded into the +; generic PRE-V32 movem; possibly related to then being a COND-CTI rather +; than an UNCOND-CTI. +(dni-cmt-attr + movem-m-pc + "movem to register, ending with PC" + (MACH-PRE-V32) + "movem [${Rs}${inc}],${Rd}" + (+ (f-dest 15) INFIX_MOVEM_M_R SIZE_FIXED Rs) + (sequence + ((SI addr) (BI postinc)) + ; FIXME: Mostly a copy of what's in cris-get-mem. + + ; Cache the incrementness of the operand. + (set postinc inc) + + ; Get the address from somewhere. If the insn was prefixed, it's in + ; the prefix-register. + (set addr + (if SI (eq prefix-set 0) + Rs + prefixreg)) + + ; FIXME: Add kludge here too *and* a test-case. + + (.splice + sequence () + ; The first movem step is for PC destination, used in longjmp. + (set pc (mem SI addr)) + (set addr (add addr 4)) + (.unsplice + (.map + (.pmacro + (regn) + (sequence + ((SI tmp)) + (set tmp (mem SI addr)) + (set (reg h-gr regn) tmp) + (set addr (add addr 4)))) + (.iota 15 14 -1)))) + + ; Update the source-register for post-increments. + ; FIXME: No postinc-prefixed for v0. + (if (ne postinc 0) + (set Rs (if SI (eq prefix-set 0) addr prefixreg))) + (reset-x-p)) +) + +(dni + movem-m-r-v32 + "movem to register" + (MACH-V32) + "movem [${Rs}${inc}],${Rd}" + (+ INFIX_MOVEM_M_R MODEMEMP_YES inc SIZE_FIXED Rs Rd) + (sequence + ((SI addr) (BI postinc)) + ; FIXME: A copy of what's in cris-get-mem + + ; Cache the incrementness of the operand. + (set postinc inc) + + ; Get the address from somewhere. + (set addr Rs) + + ; CGEN-FIXME: See movem-r-m. + (sequence ((SI dummy)) (set dummy Rd)) + + (.splice + sequence () + (.unsplice (.map movem-to-reg-step (.iota 16)))) + + ; Update the source-register for post-increments. + ; FIXME: No postinc-prefixed for v0 IIRC. + (if (ne postinc 0) + (set Rs addr)) + (reset-x-p)) + ; u-mem must be specified before the u-movem-* for memory source + ; register stall count to be right. + ((crisv32 (unit u-mem) (unit u-mem-r) (unit u-movem-mtor) + (unit u-exec-movem))) +) + +; ADD.m Rs,Rd [ Rd | 011000mm | Rs ] +(dni-cdt-bwd + add "add from register to register" + "$Rs,$Rd" + (+ Rd MODE_REGISTER R_ADD Rs) + (.pmacro (BWD) (cris-arit add BWD Rd Rs)) +) + +; ADD.m [Rs],Rd [ Rd | 101000mm | Rs ] +; ADD.m [Rs+],Rd [ Rd | 111000mm | Rs ] +(dni-cmt-bwd + add-m "add from memory to register" + "[${Rs}${inc}],${Rd}" + (+ INDIR_ADD Rs Rd) + (.pmacro (BWD) (cris-arit-3op add BWD Rd (cris-get-mem BWD Rs) Rs)) +) +; (ADD.m [PC+],Rd [ Rd | 111000mm | 1111 ]) +(dni-c-QI + addcbr "add constant byte to register" + "add.b ${sconst8}],${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_ADD SIZE_BYTE (f-source 15) sconst8) + (cris-arit add QI Rd sconst8) +) + +(dni-c-HI + addcwr "add constant word to register" + "add.w ${sconst16}],${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_ADD SIZE_WORD (f-source 15) sconst16) + (cris-arit add HI Rd sconst16) +) + +(dni-c-SI + addcdr "add constant dword to register" + "add.d ${const32}],${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_ADD SIZE_DWORD (f-source 15) const32) + (cris-arit add SI Rd const32) +) + +; (ADD.D [PC+],PC [ 1111 | 11100010 | 1111 ]) +; This insn is used for DSO-local jumps in PIC code. +(dni + addcpc "Relative jump by adding constant to PC" + (MACH-PC) + "add.d ${sconst32},PC" + (+ (f-dest 15) MODE_AUTOINCREMENT INDIR_ADD SIZE_DWORD (f-source 15) const32) + (sequence + ((SI newpc) (SI oldpc) (SI offs)) + (set offs const32) + (set oldpc (add SI pc 6)) + (set newpc (add SI oldpc offs)) + (set pc newpc) + (setf-arit SI add oldpc offs newpc cbit)) + (simplecris-common-timing ((unit u-const32) (unit u-stall) (unit u-exec))) +) + +; ADDS.z Rs,Rd [ Rd | 0100001z | Rs ] +(dni-cdt-sbw + adds "add sign-extended from register to register" + "$Rs,$Rd" + (+ Rd MODE_REGISTER R_ADDX Rs) + (.pmacro (BW) (cris-arit add SI Rd ((.sym BW -ext) (trunc BW Rs)))) +) + +; ADDS.z [Rs],Rd [ Rd | 1000001z | Rs ] +; ADDS.z [Rs+],Rd [ Rd | 1100001z | Rs ] +(dni-cmt-sbw + adds-m "add sign-extended from memory to register" + "[${Rs}${inc}],$Rd" + (+ Rd INDIR_ADDX Rs) + (.pmacro (BW) (cris-arit-3op add SI Rd ((.sym BW -ext) (cris-get-mem BW Rs)) Rs)) +) + +; (ADDS.z [PC+],Rd [ Rd | 1100001z | 1111 ]) +(dni-c-QI + addscbr "add sign-extended constant byte to register" + "[${Rs}${inc}],$Rd" + (+ Rd MODE_AUTOINCREMENT INDIR_ADDX SIGNED_BYTE (f-source 15) sconst8) + (cris-arit add SI Rd (ext SI (trunc QI sconst8))) +) +(dni-c-HI + addscwr "add sign-extended constant word to register" + "[${Rs}${inc}],$Rd" + (+ Rd MODE_AUTOINCREMENT INDIR_ADDX SIGNED_WORD (f-source 15) sconst16) + (cris-arit add SI Rd (ext SI (trunc HI sconst16))) +) + +; (ADDS.w [],PC [ 1111 | 10000011 | 1111 ]) +; For a PC destination, we support only the two-operand case +; (dest == src), which is used in switch/case statements. +; FIXME: Should implement ADD.D [PC],PC and ADDS.B [PC],PC for use if/when +; implementing CASE_VECTOR_SHORTEN_MODE. +(dni + addspcpc "add sign-extended prefixed arg to PC" + (MACH-PC) + "adds.w [PC],PC" + (+ (f-dest 15) MODE_INDIRECT INDIR_ADDX SIGNED_WORD (f-source 15)) + (sequence + ((SI newpc) (SI oldpc) (HI offs)) + (if (not prefix-set) + (error "Unexpected adds.w [PC],PC without prefix")) + ; We don't use cris-get-mem but instead special-case this one, since we + ; have most instruction fields fixed where cris-get-mem expects + ; field-parametrization by certain names. + (set offs (mem HI prefixreg)) + (set oldpc (add SI pc 2)) + (set newpc (add SI oldpc offs)) + (set pc newpc) + (setf-arit SI add oldpc (ext SI offs) newpc cbit)) + (simplecris-common-timing ((unit u-mem) (unit u-stall) (unit u-exec))) +) + +; ADDU.z Rs,Rd [ Rd | 0100000z | Rs ] +(dni-cdt-ubw + addu "add zero-extended from register to register" + "$Rs,$Rd" + (+ Rd MODE_REGISTER R_ADDX Rs) + (.pmacro (BW) (cris-arit add SI Rd ((.sym BW -zext) (trunc BW Rs)))) +) + +; ADDU.z [Rs],Rd [ Rd | 1000000z | Rs ] +; ADDU.z [Rs+],Rd [ Rd | 1100000z | Rs ] +(dni-cmt-ubw + addu-m "add zero-extended from memory to register" + "[${Rs}${inc}],$Rd" + (+ Rd INDIR_ADDX Rs) + (.pmacro (BW) + (cris-arit-3op add SI Rd ((.sym BW -zext) (cris-get-mem BW Rs)) Rs)) +) + +; (ADDU.z [PC+],Rd [ Rd | 1100000z | 1111 ]) +(dni-c-QI + adducbr "add zero-extended constant byte to register" + "[${Rs}${inc}],$Rd" + (+ Rd MODE_AUTOINCREMENT INDIR_ADDX UNSIGNED_BYTE (f-source 15) sconst8) + (cris-arit add SI Rd (zext SI (trunc QI sconst8))) +) +(dni-c-HI + adducwr "add zero-extended constant word to register" + "[${Rs}${inc}],$Rd" + (+ Rd MODE_AUTOINCREMENT INDIR_ADDX UNSIGNED_WORD (f-source 15) sconst16) + (cris-arit add SI Rd (zext SI (trunc HI sconst16))) +) + +; SUB.m Rs,Rd [ Rd | 011010mm | Rs ] +(dni-cdt-bwd + sub "subtract from register to register" + "$Rs,$Rd" + (+ Rd MODE_REGISTER R_SUB Rs) + (.pmacro (BWD) (cris-arit sub BWD Rd Rs)) +) + +; SUB.m [Rs],Rd [ Rd | 101010mm | Rs ] +; SUB.m [Rs+],Rd [ Rd | 111010mm | Rs ] +(dni-cmt-bwd + sub-m "subtract from memory to register" + "[${Rs}${inc}],${Rd}" + (+ INDIR_SUB Rs Rd) + (.pmacro (BWD) (cris-arit-3op sub BWD Rd (cris-get-mem BWD Rs) Rs)) +) + +; (SUB.m [PC+],Rd [ Rd | 111010mm | 1111 ] +(dni-c-QI + subcbr "subtract constant byte from register" + "sub.b ${sconst8}],${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_SUB SIZE_BYTE (f-source 15) sconst8) + (cris-arit sub QI Rd sconst8) +) + +(dni-c-HI + subcwr "subtract constant word from register" + "sub.w ${sconst16}],${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_SUB SIZE_WORD (f-source 15) sconst16) + (cris-arit sub HI Rd sconst16) +) + +(dni-c-SI + subcdr "subtract constant dword from register" + "sub.d ${const32}],${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_SUB SIZE_DWORD (f-source 15) const32) + (cris-arit sub SI Rd const32) +) + +; SUBS.z Rs,Rd [ Rd | 0100101z | Rs ] +(dni-cdt-sbw + subs "sub sign-extended from register to register" + "$Rs,$Rd" + (+ Rd MODE_REGISTER R_SUBX Rs) + (.pmacro (BW) (cris-arit sub SI Rd ((.sym BW -ext) (trunc BW Rs)))) +) + +; SUBS.z [Rs],Rd [ Rd | 1000101z | Rs ] +; SUBS.z [Rs+],Rd [ Rd | 1100101z | Rs ] +(dni-cmt-sbw + subs-m "sub sign-extended from memory to register" + "[${Rs}${inc}],$Rd" + (+ Rd INDIR_SUBX Rs) + (.pmacro (BW) + (cris-arit-3op sub SI Rd ((.sym BW -ext) (cris-get-mem BW Rs)) Rs)) +) + +; (SUBS.z [PC+],Rd [ Rd | 1100101z | 1111 ]) +(dni-c-QI + subscbr "sub sign-extended constant byte to register" + "[${Rs}${inc}],$Rd" + (+ Rd MODE_AUTOINCREMENT INDIR_SUBX SIGNED_BYTE (f-source 15) sconst8) + (cris-arit sub SI Rd (ext SI (trunc QI sconst8))) +) +(dni-c-HI + subscwr "sub sign-extended constant word to register" + "[${Rs}${inc}],$Rd" + (+ Rd MODE_AUTOINCREMENT INDIR_SUBX SIGNED_WORD (f-source 15) sconst16) + (cris-arit sub SI Rd (ext SI (trunc HI sconst16))) +) + +; SUBU.z Rs,Rd [ Rd | 0100100z | Rs ] +(dni-cdt-ubw + subu "sub zero-extended from register to register" + "$Rs,$Rd" + (+ Rd MODE_REGISTER R_SUBX Rs) + (.pmacro (BW) (cris-arit sub SI Rd ((.sym BW -zext) (trunc BW Rs)))) +) + +; SUBU.z [Rs],Rd [ Rd | 1000100z | Rs ] +; SUBU.z [Rs+],Rd [ Rd | 1100100z | Rs ] +(dni-cmt-ubw + subu-m "sub zero-extended from memory to register" + "[${Rs}${inc}],$Rd" + (+ Rd INDIR_SUBX Rs) + (.pmacro (BW) + (cris-arit-3op sub SI Rd ((.sym BW -zext) (cris-get-mem BW Rs)) Rs)) +) + +; (SUBU.z [PC+],Rd [ Rd | 1100100z | 1111 ]) +(dni-c-QI + subucbr "sub zero-extended constant byte to register" + "[${Rs}${inc}],$Rd" + (+ Rd MODE_AUTOINCREMENT INDIR_SUBX UNSIGNED_BYTE (f-source 15) sconst8) + (cris-arit sub SI Rd (zext SI (trunc QI sconst8))) +) +(dni-c-HI + subucwr "sub zero-extended constant word to register" + "[${Rs}${inc}],$Rd" + (+ Rd MODE_AUTOINCREMENT INDIR_SUBX UNSIGNED_WORD (f-source 15) sconst16) + (cris-arit sub SI Rd (zext SI (trunc HI sconst16))) +) + +; ADDC Rs,Rd [ Rd | 01010111 | Rs ] +(dni-cdt-attr + addc-r "addc from register to register" + (MACH-V32) + "addc $Rs,$Rd" + (+ Rd MODE_REGISTER RFIX_ADDC SIZE_FIXED Rs) + ; Since this is equivalent to "ax" plus "add.d Rs,Rd", we'll just do + ; that, semantically. + (sequence + () + (set-quiet xbit 1) + (cris-arit add SI Rd Rs)) +) + +; ADDC [Rs],Rd [ Rd | 10011010 | Rs ] +; ADDC [Rs+],Rd [ Rd | 11011010 | Rs ] +(dni-cmt-attr + addc-m "addc from memory to register" + (MACH-V32) + "addc [${Rs}${inc}],${Rd}" + (+ Rd INDIR_ADDC SIZE_DWORD Rs) + (sequence + () + (set-quiet xbit 1) + (cris-arit add SI Rd (cris-get-mem SI Rs))) +) + +; (ADDC [Rs+],Rd [ Rd | 11011010 | 1111 ]) +(dni-c-SI-attr + addc-c "addc constant to register" + (MACH-V32) + "addc ${const32},${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_ADDC SIZE_DWORD (f-source 15) const32) + (sequence + () + (set-quiet xbit 1) + (cris-arit add SI Rd const32)) +) + +; LAPC [PC+],Rd [ Rd | 11010111 1111 ] +(dni-c-SI-attr + lapc-d "lapc.d" + (MACH-V32) + "lapc.d ${const32-pcrel},${Rd}" + (+ Rd MODE_AUTOINCREMENT INFIX_LAPC SIZE_FIXED (f-source 15) const32-pcrel) + (sequence + () + (set Rd const32-pcrel) + (reset-x-p)) +) + +; LAPCQ qo,Rd [ Rd | 10010111 | qo ] +(dni-cdt-attr + lapcq "lapcq" + (MACH-V32) + "lapcq ${qo},${Rd}" + (+ Rd MODE_INDIRECT INFIX_LAPC SIZE_FIXED qo) + (sequence + () + (set Rd qo) + (reset-x-p)) +) + +; ADDI Rs.m,Rd [ Rs | 010100mm | Rd ] +(dni-cdt-bwd + addi "addi" + "${Rs-dfield}.m,${Rd-sfield}" + (+ Rd-sfield MODE_REGISTER R_ADDI Rs-dfield) + (.pmacro + (BWD) + (sequence + () + (set Rd-sfield (add SI Rd-sfield (mul Rs-dfield (.sym BWD -size)))) + (reset-x-p))) +) + +; NEG.m Rs,Rd [ Rd | 010110mm | Rs ] +(dni-cdt-bwd + neg "neg.m Rs,Rd" + "$Rs,$Rd" + (+ Rd MODE_REGISTER R_NEG Rs) + (.pmacro (BWD) (cris-arit3 sub BWD Rd 0 Rs)) +) + +; TEST.m [Rs] [ 0000101110mm | Rs ] +; TEST.m [Rs+] [ 0000111110mm | Rs ] +(dni-cmt-bwd + test-m "test.m [Rs(+)]" + "[${Rs}${inc}]" + (+ (f-dest 0) INDIR_TEST Rs) + (.pmacro + (BWD) + (sequence + ((BWD tmpd)) + (set tmpd (cris-get-mem BWD Rs)) + ; This is supposed to be the same result as for cmpq 0,X, hence same code. + (cris-arit6-int + sub BWD (.pmacro (sz regno val) (nop)) 0 tmpd 0 cbit cbit))) +) + +; MOVE.m Rs,[Rd] [ Rs | 101111mm | Rd ] +; MOVE.m Rs,[Rd+] [ Rs | 111111mm | Rd ] + +(dni-cmwt-bwd + move-r-m "move.m R,[]" + "${Rs-dfield},[${Rd-sfield}${inc}]" + (+ Rs-dfield INDIR_MOVE_R_M Rd-sfield) + (.pmacro + (BWD) + (sequence + ((BWD tmpd)) + (set tmpd Rs-dfield) + (cris-set-mem BWD Rd-sfield tmpd) + (reset-x-p))) +) + +; MULS.m Rs,Rd [ Rd | 110100mm | Rs ] +(dni-bwd-attr + muls "muls.m Rs,Rd" + ((MACH crisv10,crisv32)) + "$Rs,$Rd" + (+ Rd MODE_MULS INDIR_MUL Rs) + (.pmacro + (BWD) + (sequence + ((DI src1) (DI src2) (DI tmpr)) + (set src1 (ext DI (trunc BWD Rs))) + (set src2 (ext DI (trunc BWD Rd))) + (set tmpr (mul src1 src2)) + (set Rd (trunc SI tmpr)) + (set mof (trunc SI (srl tmpr 32))) + (setf-arit DI muls src1 src2 tmpr cbit))) + ((crisv10 (unit u-multiply) (unit u-exec)) + (crisv32 (unit u-multiply) (unit u-exec))) +) + +; MULU.m Rs,Rd [ Rd | 100100mm | Rs ] +(dni-bwd-attr + mulu "mulu.m Rs,Rd" + ((MACH crisv10,crisv32)) + "$Rs,$Rd" + (+ Rd MODE_MULU INDIR_MUL Rs) + (.pmacro + (BWD) + (sequence + ((DI src1) (DI src2) (DI tmpr)) + (set src1 (zext DI (trunc BWD Rs))) + (set src2 (zext DI (trunc BWD Rd))) + (set tmpr (mul src1 src2)) + (set Rd (trunc SI tmpr)) + (set mof (trunc SI (srl tmpr 32))) + (setf-arit DI mulu src1 src2 tmpr cbit))) + ((crisv10 (unit u-multiply) (unit u-exec)) + (crisv32 (unit u-multiply) (unit u-exec))) +) + +; MCP Ps,Rd [ Ps | 01111111 | Rd ] +(dni-cdt-attr + mcp "Multiply Carry Propagation" + (MACH-V32) + "mcp $Ps,$Rd" + (+ Ps MODE_REGISTER RFIX_MCP SIZE_FIXED Rd-sfield) + (sequence + () + (set-quiet xbit 1) + (set-quiet zbit 1) + (cris-arit5 add SI Rd-sfield Rd-sfield Ps rbit rbit)) +) + +; DSTEP Rs,Rd [ Rd | 01101111 | Rs ] +(dni-cdt + dstep "Division step" + "dstep $Rs,$Rd" + (+ Rd MODE_REGISTER RFIX_DSTEP SIZE_FIXED Rs) + (sequence + ((SI tmp) (SI tmps) (SI tmpd)) + (set tmps Rs) + (set tmp (sll Rd 1)) + (set tmpd (if SI (geu tmp tmps) (sub tmp tmps) tmp)) + (set Rd tmpd) + (setf-move SI tmpd)) +) + +; ABS Rs,Rd [ Rd | 01101011 | Rs ] +(dni-cdt + abs "Absolut Instruction" + "abs $Rs,$Rd" + (+ Rd MODE_REGISTER RFIX_ABS SIZE_FIXED Rs) + (sequence + ((SI tmpd)) + (set tmpd (abs Rs)) + (set Rd tmpd) + (setf-move SI tmpd)) +) + +; AND.m Rs,Rd [ Rd | 011100mm | Rs ] +(dni-cdt-bwd + and "And from register to register" + "$Rs,$Rd" + (+ Rd MODE_REGISTER R_AND Rs) + (.pmacro + (BWD) + (sequence + ((BWD tmpd)) + (set tmpd (and BWD Rd Rs)) + (set-subreg-gr BWD (regno Rd) tmpd) + (setf-move BWD tmpd))) +) + +; AND.m [Rs],Rd [ Rd | 101100mm | Rs ] +; AND.m [Rs+],Rd [ Rd | 111100mm | Rs ] +(dni-cmt-bwd + and-m "And from memory to register" + "[${Rs}${inc}],${Rd}" + (+ INDIR_AND Rs Rd) + (.pmacro + (BWD) + (sequence + ((BWD tmpd)) + (set tmpd (and BWD Rd (cris-get-mem BWD Rs))) + (set-subreg-gr + BWD + (if SI (andif prefix-set (not inc)) (regno Rs) (regno Rd)) + tmpd) + (setf-move BWD tmpd))) +) + +; (AND.m [PC+],Rd [ Rd | 111100mm | 1111 ]) +(dni-c-QI + andcbr "And constant byte to register" + "and.b ${sconst8}],${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_AND SIZE_BYTE (f-source 15) sconst8) + (sequence + ((QI tmpd)) + (set tmpd (and QI Rd sconst8)) + (set-subreg-gr QI (regno Rd) tmpd) + (setf-move QI tmpd)) +) + +(dni-c-HI + andcwr "And constant word to register" + "and.w ${sconst16}],${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_AND SIZE_WORD (f-source 15) sconst16) + (sequence + ((HI tmpd)) + (set tmpd (and HI Rd sconst16)) + (set-subreg-gr HI (regno Rd) tmpd) + (setf-move HI tmpd)) +) + +(dni-c-SI + andcdr "And constant dword to register" + "and.d ${const32}],${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_AND SIZE_DWORD (f-source 15) const32) + (sequence + ((SI tmpd)) + (set tmpd (and SI Rd const32)) + (set-subreg-gr SI (regno Rd) tmpd) + (setf-move SI tmpd)) +) + +; ANDQ i,Rd [ Rd | 001100 | i ] +(dni-cdt + andq "And quick-immediate to register" + "andq $i,$Rd" + (+ Rd MODE_QUICK_IMMEDIATE Q_ANDQ i) + (sequence + ((SI tmpd)) + (set tmpd (and SI Rd i)) + (set-subreg-gr SI (regno Rd) tmpd) + (setf-move SI tmpd)) +) + +; OR.m Rs,Rd [ Rd | 011101mm | Rs ] +(dni-cdt-bwd + orr "Or from register to register" + "$Rs,$Rd" + (+ Rd MODE_REGISTER R_OR Rs) + (.pmacro + (BWD) + (sequence + ((BWD tmpd)) + (set tmpd (or BWD Rd Rs)) + (set-subreg-gr BWD (regno Rd) tmpd) + (setf-move BWD tmpd))) +) + +; OR.m [Rs],Rd [ Rd | 101101mm | Rs ] +; OR.m [Rs+],Rd [ Rd | 111101mm | Rs ] +(dni-cmt-bwd + or-m "Or from memory to register" + "[${Rs}${inc}],${Rd}" + (+ INDIR_OR Rs Rd) + (.pmacro + (BWD) + (sequence + ((BWD tmpd)) + (set tmpd (or BWD Rd (cris-get-mem BWD Rs))) + (set-subreg-gr + BWD + (if SI (andif prefix-set (not inc)) (regno Rs) (regno Rd)) + tmpd) + (setf-move BWD tmpd))) +) + +; (OR.m [PC+],Rd [ Rd | 111101mm | 1111 ]) +(dni-c-QI + orcbr "Or constant byte to register" + "or.b ${sconst8}],${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_OR SIZE_BYTE (f-source 15) sconst8) + (sequence + ((QI tmpd)) + (set tmpd (or QI Rd sconst8)) + (set-subreg-gr QI (regno Rd) tmpd) + (setf-move QI tmpd)) +) + +(dni-c-HI + orcwr "Or constant word to register" + "or.w ${sconst16}],${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_OR SIZE_WORD (f-source 15) sconst16) + (sequence + ((HI tmpd)) + (set tmpd (or HI Rd sconst16)) + (set-subreg-gr HI (regno Rd) tmpd) + (setf-move HI tmpd)) +) + +(dni-c-SI + orcdr "Or constant dword to register" + "or.d ${const32}],${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_OR SIZE_DWORD (f-source 15) const32) + (sequence + ((SI tmpd)) + (set tmpd (or SI Rd const32)) + (set-subreg-gr SI (regno Rd) tmpd) + (setf-move SI tmpd)) +) + +; ORQ i,Rd [ Rd | 001101 | i ] +(dni-cdt + orq "Or quick-immediate to register" + "orq $i,$Rd" + (+ Rd MODE_QUICK_IMMEDIATE Q_ORQ i) + (sequence + ((SI tmpd)) + (set tmpd (or SI Rd i)) + (set-subreg-gr SI (regno Rd) tmpd) + (setf-move SI tmpd)) +) + +; XOR Rs,Rd [ Rd | 01111011 | Rs ] +(dni-cdt + xor "Xor from register to register" + "xor $Rs,$Rd" + (+ Rd MODE_REGISTER RFIX_XOR SIZE_FIXED Rs) + (sequence + ((SI tmpd)) + (set tmpd (xor SI Rd Rs)) + (set Rd tmpd) + (setf-move SI tmpd)) +) + +(define-pmacro (swap-r x) + "Perform bit-wise swap within each byte" + (sequence + SI + ((SI tmpr)) + (set tmpr x) + (or (sll (and tmpr #x1010101) 7) + (or (sll (and tmpr #x2020202) 5) + (or (sll (and tmpr #x4040404) 3) + (or (sll (and tmpr #x8080808) 1) + (or (srl (and tmpr #x10101010) 1) + (or (srl (and tmpr #x20202020) 3) + (or (srl (and tmpr #x40404040) 5) + (srl (and tmpr #x80808080) 7))))))))) +) + +(define-pmacro (swap-b x) + "Perform byte-wise swap within each word" + (sequence + SI + ((SI tmpb)) + (set tmpb x) + (or (and (sll tmpb 8) #xff00ff00) + (and (srl tmpb 8) #xff00ff))) +) + +(define-pmacro (swap-w x) + "Perform word-wise swap within each dword" + (sequence + SI + ((SI tmpb)) + (set tmpb x) + (or (and (sll tmpb 16) #xffff0000) + (and (srl tmpb 16) #xffff))) +) + +(define-pmacro (swap-_ x) + "Do nothing swap-wise" + (error SI "SWAP without swap modifier isn't implemented") +) + +(define-pmacro (swap-n x) + "Perform bitwise not (that is, perform a not, not not perform)" + (inv x) +) + +(define-pmacro (swap-br x) "Combine swap-r and swap-b" (swap-r (swap-b x))) +(define-pmacro (swap-wr x) "Combine swap-r and swap-w" (swap-r (swap-w x))) +(define-pmacro (swap-wb x) "Combine swap-b and swap-w" (swap-b (swap-w x))) +(define-pmacro (swap-wbr x) "Combine swap-r and swap-wb" (swap-r (swap-wb x))) +(define-pmacro (swap-nr x) "Combine swap-r and swap-n" (swap-r (swap-n x))) +(define-pmacro (swap-nb x) "Combine swap-n and swap-b" (swap-b (swap-n x))) +(define-pmacro (swap-nbr x) "Combine swap-r and swap-nb" (swap-r (swap-nb x))) +(define-pmacro (swap-nw x) "Combine swap-n and swap-w" (swap-w (swap-n x))) +(define-pmacro (swap-nwr x) "Combine swap-r and swap-nw" (swap-r (swap-nw x))) +(define-pmacro (swap-nwb x) "Combine swap-b and swap-nw" (swap-b (swap-nw x))) +(define-pmacro (swap-nwbr x) "Combine swap-r and swap-nwb" (swap-r (swap-nwb x))) + +(define-pmacro (cris-swap swapcode val) + (sequence + SI + ((SI tmpcode) (SI tmpval) (SI tmpres)) + (set tmpcode swapcode) + (set tmpval val) + (.splice + cond + (.unsplice + (.map + (.pmacro + (x-swapcode x-swap) + ((eq tmpcode x-swapcode) + (set tmpres ((.sym swap- x-swap) tmpval)))) + (.iota 16) + (.splice _ (.unsplice cris-swap-codes))))) + tmpres) +) + +; NOT Rd alias for SWAPN Rd +(dni-cdt-attr + not "Not" + ((MACH crisv0,crisv3)) + "not ${Rs}" + (+ (f-dest 8) RFIX_SWAP MODE_REGISTER SIZE_FIXED Rd-sfield) + (sequence + ((SI tmp) (SI tmpd)) + (set tmp Rd-sfield) + (set tmpd (cris-swap 8 tmp)) + (set Rd-sfield tmpd) + (setf-move SI tmpd)) +) + +; SWAP<option> Rd [ N W B R | 01110111 | Rd ] +(dni-cdt-attr + swap "Swap" + ((MACH crisv8,crisv10,crisv32)) + "swap${swapoption} ${Rs}" + (+ swapoption RFIX_SWAP MODE_REGISTER SIZE_FIXED Rd-sfield) + (sequence + ((SI tmps) (SI tmpd)) + (set tmps Rd-sfield) + (set tmpd (cris-swap swapoption tmps)) + (set Rd-sfield tmpd) + (setf-move SI tmpd)) +) + +; ASR.m Rs,Rd [ Rd | 011110mm | Rs ] +(dni-cdt-bwd + asrr "Arithmetic shift right register count" + "$Rs,$Rd" + (+ Rd MODE_REGISTER R_ASR Rs) + (.pmacro + (BWD) + (sequence + ((BWD tmpd) (SI cnt1) (SI cnt2)) + (set cnt1 Rs) + (set cnt2 (if SI (ne (and cnt1 32) 0) 31 (and cnt1 31))) + (set tmpd (sra SI (ext SI (trunc BWD Rd)) cnt2)) + (set-subreg-gr BWD (regno Rd) tmpd) + (setf-move BWD tmpd))) +) + +; ASRQ c,Rd [ Rd | 0011101 | c ] +(dni-cdt + asrq "Arithmetic shift right quick-immediate count" + "asrq $c,${Rd}" + (+ Rd Q_ASHQ MODE_QUICK_IMMEDIATE (f-b5 1) c) + (sequence + ((SI tmpd)) + (set tmpd (sra Rd c)) + (set Rd tmpd) + (setf-move SI tmpd)) +) + +; LSR.m Rs,Rd [ Rd | 011111mm | Rs ] +(dni-cdt-bwd + lsrr "Logical shift right register count" + "$Rs,$Rd" + (+ Rd MODE_REGISTER R_LSR Rs) + (.pmacro + (BWD) + (sequence + ((SI tmpd) (SI cnt)) + (set cnt (and Rs 63)) + (set + tmpd + (if SI (ne (and cnt 32) 0) + 0 + (srl SI (zext SI (trunc BWD Rd)) (and cnt 31)))) + (set-subreg-gr BWD (regno Rd) tmpd) + (setf-move BWD tmpd))) +) + +; LSRQ c,Rd [ Rd | 0011111 | c ] +(dni-cdt + lsrq "Logical shift right quick-immediate count" + "lsrq $c,${Rd}" + (+ Rd Q_LSHQ MODE_QUICK_IMMEDIATE (f-b5 1) c) + (sequence + ((SI tmpd)) + (set tmpd (srl Rd c)) + (set Rd tmpd) + (setf-move SI tmpd)) +) + +; LSL.m Rs,Rd [ Rd | 010011mm | Rs ] +(dni-cdt-bwd + lslr "Logical shift left register count" + "$Rs,$Rd" + (+ Rd MODE_REGISTER R_LSL Rs) + (.pmacro + (BWD) + (sequence + ((SI tmpd) (SI cnt)) + (set cnt (and Rs 63)) + (set + tmpd + (if SI (ne (and cnt 32) 0) + 0 + (sll SI (zext SI (trunc BWD Rd)) (and cnt 31)))) + (set-subreg-gr BWD (regno Rd) tmpd) + (setf-move BWD tmpd))) +) + +; LSLQ c,Rd [ Rd | 0011110 | c ] +(dni-cdt + lslq "Logical shift left quick-immediate count" + "lslq $c,${Rd}" + (+ Rd Q_LSHQ MODE_QUICK_IMMEDIATE (f-b5 0) c) + (sequence + ((SI tmpd)) + (set tmpd (sll Rd c)) + (set Rd tmpd) + (setf-move SI tmpd)) +) + +; BTST Rs,Rd [ Rd | 01001111 | Rs ] +(dni-cdt + btst "Bit test register number" + "$Rs,$Rd" + (+ Rd MODE_REGISTER RFIX_BTST SIZE_FIXED Rs) + (sequence + ((SI tmpd) (SI cnt)) + (set tmpd (sll Rd (sub 31 (and Rs 31)))) + (setf-move SI tmpd)) +) + +; BTSTQ c,Rd [ Rd | 0011100 | c ] +(dni-cdt + btstq "Bit test quick-immediate number" + "btstq $c,${Rd}" + (+ Rd Q_ASHQ MODE_QUICK_IMMEDIATE (f-b5 0) c) + (sequence + ((SI tmpd)) + (set tmpd (sll Rd (sub 31 c))) + (setf-move SI tmpd)) +) + +; SETF <list of flags> [ P U I X | 01011011 | N Z V C ] +(dni-cdt + setf "Set condition code flags explicitly" + "setf ${list-of-flags}" + ; The zero-flags case gets flag operands wrong; there's a "_" + ; where there should have been nothing. Also, flags are in + ; assembly code allowed to be specified in any order, which + ; doesn't match the "flagbits" settings. Luckily we don't + ; use this field for assembly. + (+ RFIX_SETF MODE_REGISTER SIZE_FIXED list-of-flags) + (.splice + sequence + ((SI tmp)) + (set tmp list-of-flags) + (.unsplice + (.map + (.pmacro (ccbit) + (if (ne (and tmp (sll 1 (.sym ccbit -bitnumber))) 0) + (set (.sym ccbit bit) 1))) + cris-flagnames)) + (set prefix-set 0) + ; Unless x was specified to be set, set it to 0. + (if (eq (and tmp (sll 1 x-bitnumber)) 0) + (set xbit 0))) +) + +; CLEARF <list of flags> [ P U I X | 01011111 | N Z V C ] +(dni-cdt + clearf "Clear condition code flags explicitly" + "clearf ${list-of-flags}" + ; The zero-flags case gets flag operands wrong; there's a "_" + ; where there should have been nothing. Also, flags are in + ; assembly code allowed to be specified in any order, which + ; doesn't match the "flagbits" settings. Luckily we don't + ; use this field for assembly. + (+ RFIX_CLEARF MODE_REGISTER SIZE_FIXED list-of-flags) + (.splice + sequence + ((SI tmp)) + (set tmp list-of-flags) + (.unsplice + (.map + (.pmacro (ccbit) + (if (ne (and tmp (sll 1 (.sym ccbit -bitnumber))) 0) + (set (.sym ccbit bit) 0))) + cris-flagnames)) + (reset-x-p)) +) + +(define-pmacro + (rfe-rfn-guts) + "Common parts of RFE and RFN" + (sequence + ((USI oldccs) (USI samebits) (USI shiftbits) (USI keepmask) (BI p1)) + (set oldccs ccs) + ; Keeping U, S and I in user mode is handled by the CCS setter, so we + ; don't have to bother. Actually Q and M are handled too. The reason + ; to mask those out is to not have them shifted down into the second + ; flags level. + (set keepmask #xc0000000) + (set samebits (and oldccs keepmask)) + ; The P bit has its own equation. + (set shiftbits (and (srl (and oldccs #x3ffdfc00) 10) (inv keepmask))) + (set p1 (ne 0 (and oldccs #x20000))) + (set ccs (or (or samebits shiftbits) + (if SI (and rbit (not p1)) 0 #x80)))) +) + +; RFE [ 0010 10010011 0000 ] +(dni-cdt-attr + rfe + "RFE" + (MACH-V32) + "rfe" + (+ (f-dest 2) MODE_INDIRECT INFIX_RFE SIZE_FIXED (f-source 0)) + (rfe-rfn-guts) +) + +; SFE [ 0011 10010011 0000 ] +(dni-cdt-attr + sfe + "SFE" + (MACH-V32) + "sfe" + (+ (f-dest 3) MODE_INDIRECT INFIX_SFE SIZE_FIXED (f-source 0)) + (sequence + ((SI oldccs) (SI savemask)) + (set savemask #xc0000000) + (set oldccs ccs) + (set ccs + (or (and savemask oldccs) + (and (inv savemask) (sll oldccs 10))))) +) + +; RFG [ 0100 10010011 0000 ] +(dni-cdt-attr + rfg + "RFG" + (MACH-V32) + "rfg" + (+ (f-dest 4) MODE_INDIRECT INFIX_RFG SIZE_FIXED (f-source 0)) + (c-call VOID "@cpu@_rfg_handler" pc) +) + +; RFN [ 0101 10010011 0000 ] +(dni-cdt-attr + rfn + "RFN" + (MACH-V32) + "rfn" + (+ (f-dest 5) MODE_INDIRECT INFIX_RFN SIZE_FIXED (f-source 0)) + (sequence () (rfe-rfn-guts) (set mbit 1)) +) + +; HALT [ 1111 10010011 0000 ] +(dni-cdt-attr + halt + "HALT" + (MACH-V32) + "halt" + (+ (f-dest 15) MODE_INDIRECT INFIX_HALT SIZE_FIXED (f-source 0)) + (set pc (c-call USI "@cpu@_halt_handler" pc)) +) + +; Bcc o [ cc | 0000 | o ] +(dni + bcc-b "bcc byte operand" + () + "b${cc} ${o-pcrel}" + (+ cc QHI_BCC MODE_QUICK_IMMEDIATE o-pcrel) + (sequence + ((BI truthval)) + (set truthval (cris-condition cc)) + + ; Amazing as it may seem, there's no simpler way to find out + ; whether a branch is taken or not than to mark it through a kludge + ; like this. + (c-call VOID "@cpu@_branch_taken" pc o-pcrel truthval) + + (reset-x-p) + (if truthval + (delay 1 + (set pc o-pcrel)))) + (.splice (.unsplice (simplecris-timing)) + (crisv32 (unit u-branch) (unit u-exec))) +) +(dni + ba-b "ba byte operand" + () + "ba ${o-pcrel}" + (+ (f-dest 14) QHI_BCC MODE_QUICK_IMMEDIATE o-pcrel) + (sequence + () + (reset-x-p) + (delay 1 + (set pc o-pcrel))) + ((crisv32 (unit u-jump) (unit u-exec))) +) + +; Bcc [PC+] [ cc | 11011111 1111 ] +; (We don't implement the generic for pre-V32 but unused variant +; "Bcc [Rn(+)]" where n != 15.) +(dni + bcc-w "bcc, word operand" + () + "b${cc} ${o-word-pcrel}" + (+ cc MODE_AUTOINCREMENT INFIX_BCC_M SIZE_FIXED (f-source 15) o-word-pcrel) + (sequence + ((BI truthval)) + (set truthval (cris-condition cc)) + + ; Amazing as it may seem, there's no simpler way to find out + ; whether a branch is taken or not than to mark it through a kludge + ; like this. + (c-call VOID "@cpu@_branch_taken" pc o-word-pcrel truthval) + + (reset-x-p) + (if truthval + (delay 1 + (set pc o-word-pcrel)))) + (.splice + (.unsplice (simplecris-common-timing ((unit u-const16) (unit u-exec)))) + (crisv32 (unit u-const16) (unit u-branch) (unit u-exec))) +) +(dni + ba-w "ba word operand" + () + "ba ${o-word-pcrel}" + (+ (f-dest 14) MODE_AUTOINCREMENT INFIX_BCC_M SIZE_FIXED (f-source 15) o-word-pcrel) + (sequence + () + (reset-x-p) + (delay 1 + (set pc o-word-pcrel))) + (.splice + (.unsplice (simplecris-common-timing ((unit u-const16) (unit u-exec)))) + (crisv32 (unit u-const16) (unit u-jump) (unit u-exec))) +) + +; JAS Rs,Pd [ Pd | 10011011 | Rs ] +(dni + jas-r "JAS register" + (MACH-V32) + "jas ${Rs},${Pd}" + (+ Pd MODE_INDIRECT INFIX_JAS_R SIZE_FIXED Rs) + (sequence + () + (reset-x-p) + (if (andif (eq (regno Rs) 1) (eq (regno Pd) 11)) + ; We use this as a trigger; a normally reasonably rare instruction + ; used in the v32 trampoline. See comment at bdapqpc. + ; CGEN-FIXME: can't use (regno srp) [== (regno (reg h-sr 11))] + (c-call VOID "cris_flush_simulator_decode_cache" pc)) + (delay 1 + (sequence + () + (set Pd (add SI pc 4)) + (set pc Rs)))) + ((crisv32 (unit u-jump-r) (unit u-jump) (unit u-exec))) +) +; Same semantics in pre-V32, except no delay-slot. +; FIXME: Missing JIRC/JSRC/JBRC. +(dni-cdt-attr + jump-r "JUMP/JSR/JIR register" + (MACH-PC) + "jump/jsr/jir ${Rs}" + (+ Pd MODE_INDIRECT INFIX_JUMP_R SIZE_FIXED Rs) + (sequence + () + (set Pd (add SI pc 2)) + (set pc Rs) + (reset-x-p)) +) + +; JAS [PC+],Pd [ Pd | 11011011 1111 ] +(dni + jas-c "JAS constant" + (MACH-V32) + "jas ${const32},${Pd}" + (+ Pd MODE_AUTOINCREMENT INFIX_JAS_M SIZE_FIXED (f-source 15) const32) + (sequence + () + (reset-x-p) + (delay 1 + (sequence + () + (set Pd (add SI pc 8)) + (set pc const32)))) + ((crisv32 (unit u-const32) (unit u-jump) (unit u-exec))) +) + +; JUMP/JSR/JIR | Special r.| 1 m| 0 1 0 0| 1 1| Source | +(dni-cmt-attr + jump-m "JUMP/JSR/JIR memory" + (MACH-PC) + "jump/jsr/jir [${Rs}${inc}]" + (+ Pd INFIX_JUMP_M SIZE_FIXED Rs) + (sequence + () + (set Pd (add SI pc 2)) + (set pc (cris-get-mem SI Rs)) + (reset-x-p)) +) +(dni-c-SI-attr + jump-c "JUMP/JSR/JIR constant" + (MACH-PC) + "jump/jsr/jir ${const32}" + (+ Pd MODE_AUTOINCREMENT INFIX_JUMP_M SIZE_FIXED (f-source 15) const32) + (sequence + () + (set Pd (add SI pc 6)) + (set pc const32) + (reset-x-p)) +) + +; JUMP Ps [ Ps | 10011111 0000 ] +(dni + jump-p "JUMP special register" + (MACH-V32) + "jump ${Ps}" + (+ Ps MODE_INDIRECT INFIX_JUMP_P SIZE_FIXED (f-source 0)) + (sequence + () + (reset-x-p) + (delay 1 + (set pc Ps))) + ((crisv32 (unit u-jump-sr) + (unit u-exec))) +) + +; BAS [PC+],Pd [ Pd | 11101011 1111 ] +(dni + bas-c "BAS constant" + (MACH-V32) + "bas ${const32},${Pd}" + (+ Pd MODE_AUTOINCREMENT INFIX_BAS SIZE_FIXED (f-source 15) const32-pcrel) + (sequence + () + (reset-x-p) + (delay 1 + (sequence + () + (set Pd (add SI pc 8)) + (set pc const32-pcrel)))) + ((crisv32 (unit u-const32) (unit u-jump) (unit u-exec))) +) + +; JASC Rs,Pd [ Pd | 10110011 | Rs ] +(dni + jasc-r "JASC register" + (MACH-V32) + "jasc ${Rs},${Pd}" + (+ Pd MODE_INDIRECT INFIX_JASC SIZE_FIXED Rs) + (sequence + () + (reset-x-p) + (delay 1 + (sequence + () + (set Pd (add SI pc 8)) + (set pc Rs)))) + ((crisv32 (unit u-jump-r) (unit u-skip4) (unit u-jump) (unit u-exec))) +) + +; JASC [PC+],Pd [ Pd | 11110011 1111 ] +(dni + jasc-c "JASC constant" + (MACH-V32) + "jasc ${const32},${Pd}" + (+ Pd MODE_AUTOINCREMENT INFIX_JASC SIZE_FIXED (f-source 15) const32) + (sequence + () + (reset-x-p) + (delay 1 + (sequence + () + (set Pd (add SI pc 12)) + (set pc const32)))) + ((crisv32 (unit u-const32) (unit u-skip4) (unit u-jump) (unit u-exec))) +) + +; BASC [PC+],Pd [ Pd | 11101111 1111 ] +(dni + basc-c "BASC constant" + (MACH-V32) + "basc ${const32},${Pd}" + (+ Pd MODE_AUTOINCREMENT INFIX_BASC SIZE_FIXED (f-source 15) const32-pcrel) + (sequence + () + (reset-x-p) + (delay 1 + (sequence + () + (set Pd (add SI pc 12)) + (set pc const32-pcrel)))) + ((crisv32 (unit u-const32) (unit u-skip4) (unit u-jump) (unit u-exec))) +) + +; BREAK n [ 1110 | 10010011 | n ] + +(dni-cdt + break "break" + "break $n" + (+ (f-operand2 #xe) MODE_INDIRECT INFIX_BREAK SIZE_FIXED n) + (sequence () (reset-x-p) (set pc (c-call USI "@cpu@_break_handler" n pc))) +) + +; BOUND.m Rs,Rd [ Rd | 010111mm | Rs ] +(dni-cdt-bwd + bound-r "Bound register" + "${Rs},${Rd}" + (+ Rd R_BOUND MODE_REGISTER Rs) + (.pmacro + (BWD) + (sequence + ((SI tmpopd) (SI tmpops) (SI newval)) + (set tmpops ((.sym BWD -zext) (trunc BWD Rs))) + (set tmpopd Rd) + (set newval (if SI (ltu tmpops tmpopd) tmpops tmpopd)) + (set Rd newval) + (setf-move SI newval))) +) + +; BOUND.m [Rs],Rd [ Rd | 100111mm | Rs ] +; BOUND.m [Rs+],Rd [ Rd | 110111mm | Rs ] +(dni-cmt-bwd-attr + bound-m "Bound memory" + (MACH-PRE-V32) + "[${Rs}${inc}],${Rd}" + (+ Rd INDIR_BOUND Rs) + (.pmacro + (BWD) + (sequence + ((SI tmpopd) (SI tmpops) (SI newval)) + (set tmpops ((.sym BWD -zext) (cris-get-mem BWD Rs))) + (set tmpopd Rd) + (set newval (if SI (ltu tmpops tmpopd) tmpops tmpopd)) + (if (andif prefix-set (not inc)) + (set Rs newval) + (set Rd newval)) + (setf-move SI newval))) +) + +; (BOUND.m [PC+],Rd [ Rd | 110111mm | 1111 ]) +(dni-c-QI + bound-cb "Bound constant byte" + "bound.b [PC+],${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_BOUND SIZE_BYTE (f-source 15) uconst8) + (sequence + ((SI tmpopd) (SI tmpops) (SI newval)) + (set tmpops (zext SI (trunc QI uconst8))) + (set tmpopd Rd) + (set newval (if SI (ltu tmpops tmpopd) tmpops tmpopd)) + (set Rd newval) + (setf-move SI newval)) +) +(dni-c-HI + bound-cw "Bound constant word" + "bound.w [PC+],${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_BOUND SIZE_WORD (f-source 15) uconst16) + (sequence + ((SI tmpopd) (SI tmpops) (SI newval)) + (set tmpops (zext SI uconst16)) + (set tmpopd Rd) + (set newval (if SI (ltu tmpops tmpopd) tmpops tmpopd)) + (set Rd newval) + (setf-move SI newval)) +) +(dni-c-SI + bound-cd "Bound constant dword" + "bound.d [PC+],${Rd}" + (+ Rd MODE_AUTOINCREMENT INDIR_BOUND SIZE_DWORD (f-source 15) const32) + (sequence + ((SI tmpopd) (SI tmpops) (SI newval)) + (set tmpops const32) + (set tmpopd Rd) + (set newval (if SI (ltu tmpops tmpopd) tmpops tmpopd)) + (set Rd newval) + (setf-move SI newval)) +) + +; Scc Rd [ cc | 01010011 | Rd ] +(dni-cdt + scc "scc" + "s${cc} ${Rd-sfield}" + (+ cc MODE_REGISTER RFIX_SCC SIZE_FIXED Rd-sfield) + (sequence + ((BI truthval)) + (set truthval (cris-condition cc)) + (set Rd-sfield (zext SI truthval)) + (reset-x-p)) +) + +; LZ Rs,Rd [ Rd | 01110011 | Rs ] +(dni-cdt-attr + lz "lz" + (MACH-V3-UP) + "lz ${Rs},${Rd}" + (+ Rd MODE_REGISTER RFIX_LZ SIZE_FIXED Rs) + (sequence + ((SI tmpd) (SI tmp)) + (set tmp Rs) + (set tmpd 0) + (.splice + sequence + () + (.unsplice + (.map + (.pmacro (n) + (if (ge tmp 0) + (sequence + () + (set tmp (sll tmp 1)) + (set tmpd (add tmpd 1))))) + (.iota 32)))) + (set Rd tmpd) + (setf-move SI tmpd)) +) + +; ADDOQ o,Rs,ACR [ Rs | 0001 | o ] +(dni-cdt + addoq "addoq" + "addoq $o,$Rs,ACR" + (+ Rs-dfield MODE_QUICK_IMMEDIATE QHI_ADDOQ o) + (sequence + () + (set prefixreg (add SI Rs-dfield o)) + (set prefix-set 1)) +) + +; (BDAPQ o,PC [ 1111 | 0001 | o ]) +; This [PC+I] prefix is used in trampolines. +(dni-cdt-attr + bdapqpc "bdapq pc operand" + (MACH-PC UNCOND-CTI) + "bdapq $o,PC" + (+ (f-dest 15) MODE_QUICK_IMMEDIATE QHI_BDAP o) + (sequence + () + (set prefixreg (add SI (add SI pc 2) o)) + (set prefix-set 1) + ; When this *rare* instruction is seen, we're may be about to write + ; into code to be executed soon, *probably* covering addresses decoded + ; and executed before. If the simulator does not implement snooping + ; and automatic decoder flush, it will execute old code. This call + ; is a kludge for such simulators, asking it to abandon such cached + ; information. Anyway, it is hopefully enough to make CGEN-sim not + ; hork on gcc trampolines. + ; We mark this insn as UNCOND-CTI so this insn will end a simulator + ; basic block (the atomic unit of translation). + (c-call VOID "cris_flush_simulator_decode_cache" pc)) +) + +; ADDO.m [Rs],Rd,ACR [ Rd | 100101mm | Rs ] +; ADDO.m [Rs+],Rd,ACR [ Rd | 110101mm | Rs ] +(dni-cmt-bwd + addo-m "addo.m memory" + "[${Rs}${inc}],$Rd,ACR" + (+ Rd INDIR_ADDO Rs) + (.pmacro + (BWD) + (sequence + ((BWD tmps)) + (set tmps (cris-get-mem BWD Rs)) + (set prefixreg (add SI Rd ((.sym BWD -ext) tmps))) + (set prefix-set 1))) +) + +; (ADDO.m [PC+],Rd,ACR [ Rd | 110101mm | 1111 ] +(dni-c-QI + addo-cb "addo.b const" + "addo.b [PC+],$Rd,ACR" + (+ Rd MODE_AUTOINCREMENT INDIR_ADDO SIZE_BYTE (f-source 15) sconst8) + (sequence + () + (set prefixreg (add SI Rd (ext SI (trunc QI sconst8)))) + (set prefix-set 1)) +) +(dni-c-HI + addo-cw "addo.w const" + "addo.w [PC+],$Rd,ACR" + (+ Rd MODE_AUTOINCREMENT INDIR_ADDO SIZE_WORD (f-source 15) sconst16) + (sequence + () + (set prefixreg (add SI Rd (ext SI (trunc HI sconst16)))) + (set prefix-set 1)) +) +(dni-c-SI + addo-cd "addo.d const" + "addo.d [PC+],$Rd,ACR" + (+ Rd MODE_AUTOINCREMENT INDIR_ADDO SIZE_DWORD (f-source 15) const32) + (sequence + () + (set prefixreg (add SI Rd const32)) + (set prefix-set 1)) +) + +; DIP [] | 0 0 0 0| 1 m| 0 1 0 1| 1 1| Source | + +(dni-cmt-attr + dip-m "dip mem" + (MACH-PRE-V32) + "dip [${Rs}${inc}]" + (+ (f-dest 0) INFIX_DIP SIZE_FIXED Rs) + (sequence + ((SI tmps)) + (set tmps (cris-get-mem SI Rs)) + (set prefixreg tmps) + (set prefix-set 1)) +) + +; (DIP [] | 0 0 0 0| 1 m| 0 1 0 1| 1 1| Source | ) +(dni-c-SI-attr + dip-c "dip [PC+]" + (MACH-PC) + "dip [PC+]" + (+ (f-dest 0) MODE_AUTOINCREMENT INFIX_DIP SIZE_FIXED (f-source 15) const32) + (sequence + () + (set prefixreg const32) + (set prefix-set 1)) +) + +; ADDI Rs.m,Rd,ACR [ Rs | 010101mm | Rd ] +; a.k.a. biap +(dni-cdt-bwd + addi-acr "addi prefix" + "${Rs-dfield}.m,${Rd-sfield},ACR" + (+ Rd-sfield MODE_REGISTER R_ADDI_ACR Rs-dfield) + (.pmacro + (BWD) + (sequence + () + (set prefixreg (add SI Rd-sfield (mul Rs-dfield (.sym BWD -size)))) + (set prefix-set 1))) +) + +(dni-cdt-bwd-attr + biap-pc "biap.m ${Rs-dfield},PC" + (MACH-PC) + "${Rs-dfield}.m,PC" + (+ Rs-dfield MODE_REGISTER R_ADDI_ACR (f-source 15)) + (.pmacro + (BWD) + (sequence + () + (set prefixreg (add SI (add SI pc 4) (mul Rs-dfield (.sym BWD -size)))) + (set prefix-set 1))) +) + +; FIDXI [Rs] [ 0000 | 11010011 | Rs ] +(dni-cdt-attr + fidxi "fidxi [Rs]" + (MACH-V32) + "fidxi [$Rs]" + (+ (f-dest 0) MODE_AUTOINCREMENT INFIX_FIDXI SIZE_FIXED Rs) + (set pc (c-call USI "@cpu@_fidxi_handler" pc Rs)) +) + +; FTAGI [Rs] [ 0001 | 11010011 | Rs ] +(dni-cdt-attr + ftagi "ftagi [Rs]" + (MACH-V32) + "fidxi [$Rs]" + (+ (f-dest 1) MODE_AUTOINCREMENT INFIX_FTAGI SIZE_FIXED Rs) + (set pc (c-call USI "@cpu@_ftagi_handler" pc Rs)) +) + +; FIDXD [Rs] [ 0000 | 10101011 | Rs ] +(dni-cdt-attr + fidxd "fidxd [Rs]" + (MACH-V32) + "fidxd [$Rs]" + (+ (f-dest 0) MODE_INDIRECT INFIX_FIDXD SIZE_FIXED Rs) + (set pc (c-call USI "@cpu@_fidxd_handler" pc Rs)) +) + +; FTAGD [Rs] [ 0001 | 10101011 | Rs ] +(dni-cdt-attr + ftagd "ftagd [Rs]" + (MACH-V32) + "ftagd [$Rs]" + (+ (f-dest 1) MODE_INDIRECT INFIX_FTAGD SIZE_FIXED Rs) + (set pc (c-call USI "@cpu@_ftagd_handler" pc Rs)) +) |