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2018-06-11target/m68k: Merge disas_m68k_insn into m68k_tr_translate_insnRichard Henderson1-11/+6
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180512050250.12774-10-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-06-11target/m68k: Improve ending TB at page boundariesRichard Henderson1-3/+19
Rather than limit total TB size to PAGE-32 bytes, end the TB when near the end of a page. This should provide proper semantics of SIGSEGV when executing near the end of a page. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180512050250.12774-9-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-06-11target/m68k: Convert to TranslatorOpsRichard Henderson1-92/+88
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180512050250.12774-8-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-06-11target/m68k: Convert to DisasContextBaseRichard Henderson1-70/+67
Removed ctx->insn_pc in favour of ctx->base.pc_next. Yes, it is annoying, but didn't want to waste its 4 bytes. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180512050250.12774-7-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-06-11target/m68k: Rename DISAS_UPDATE and gen_lookup_tbRichard Henderson1-10/+10
The name gen_lookup_tb is at odds with tcg_gen_lookup_and_goto_tb. For these cases, we do indeed want to exit back to the main loop. Similarly, DISAS_UPDATE performs no actual update, whereas DISAS_EXIT does what it says. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180512050250.12774-6-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-06-11target/m68k: Use lookup_and_goto_tb for DISAS_JUMPRichard Henderson1-1/+4
These are all indirect or out-of-page direct jumps. We can indirectly chain to the next TB without going back to the main loop. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180512050250.12774-5-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-06-11target/m68k: Remove DISAS_JUMP_NEXT as unusedRichard Henderson1-1/+0
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180512050250.12774-4-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-06-11target/m68k: Replace DISAS_TB_JUMP with DISAS_NORETURNRichard Henderson1-3/+1
We have exited the TB after using goto_tb; there is no distinction from DISAS_NORETURN. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180512050250.12774-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-06-11target/m68k: Use DISAS_NORETURN for exceptionsRichard Henderson1-8/+8
The raise_exception helper does not return. Do not generate any code following that. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180512050250.12774-2-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-06-08target/m68k: Add trailing '\n' to qemu_log() callPhilippe Mathieu-Daudé1-1/+1
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-id: 20180606152128.449-10-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-04Merge remote-tracking branch 'remotes/rth/tags/tcg-next-pull-request' into ↵Peter Maydell1-3/+3
staging tcg-next queue # gpg: Signature made Sat 02 Jun 2018 00:12:42 BST # gpg: using RSA key 64DF38E8AF7E215F # gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" # Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F * remotes/rth/tags/tcg-next-pull-request: tcg: Pass tb and index to tcg_gen_exit_tb separately Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-01tcg: Pass tb and index to tcg_gen_exit_tb separatelyRichard Henderson1-3/+3
Do the cast to uintptr_t within the helper, so that the compiler can type check the pointer argument. We can also do some more sanity checking of the index argument. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-06-01target: Do not include "exec/exec-all.h" if it is not necessaryPhilippe Mathieu-Daudé1-1/+0
Code change produced with: $ git grep '#include "exec/exec-all.h"' | \ cut -d: -f-1 | \ xargs egrep -L "(cpu_address_space_init|cpu_loop_|tlb_|tb_|GETPC|singlestep|TranslationBlock)" | \ xargs sed -i.bak '/#include "exec\/exec-all.h"/d' Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180528232719.4721-10-f4bug@amsat.org> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-05-20tcg: fix s/compliment/complement/ typosEmilio G. Cota1-1/+1
Signed-off-by: Emilio G. Cota <cota@braap.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2018-05-17target/m68k: Use floatX_silence_nan when we have already checked for SNaNRichard Henderson1-1/+2
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-05-14m68k: fix floatx80_mod() (Coverity CID1390568)Laurent Vivier1-0/+1
Update the variable checked by the loop condition (expDiff). Backport the update from Previous. Fixes: 591596b77a ("target/m68k: add fmod/frem") Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Thomas Huth <huth@tuxfamily.org> Message-Id: <20180508203937.16796-1-laurent@vivier.eu>
2018-05-11target/m68k: Fix build Werror with gcc 8.0.1Richard Henderson1-2/+3
Fedora 28 ships with the released gcc 8. The Werror stems from the compiler finding a path through the second switch via a missing default case in which src1 is uninitialized, and not being able to prove that the missing default case is unreachable due to the first switch. Simplify the second switch to merge default with OS_LONG, which returns directly. This removes the unreachable path. Cc: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-id: 20180508185520.23757-1-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-05-01m68k: remove dead code (Coverity CID1390617)Laurent Vivier1-29/+14
floatx80_sin() and floatx80_cos() are derived from one sincos() function. They have both unused code coming from their common origin. Remove it. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20180430170156.1860-2-laurent@vivier.eu>
2018-05-01m68k: Fix floatx80_lognp1 (Coverity CID1390587)Laurent Vivier1-1/+2
return the result of packFloatx80() instead of dropping it. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180430170156.1860-1-laurent@vivier.eu>
2018-04-30m68k: fix subx mem, mem instructionPavel Dovgalyuk1-2/+2
This patch fixes decrement of the pointers for subx mem, mem instructions. Without the patch pointers are decremented by OS_* constant value instead of retrieving the corresponding data size and using it as a decrement. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180418064152.24606.71975.stgit@pasha-VirtualBox> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-04-15m68k: fix exception stack frame for 68000Pavel Dovgalyuk1-15/+18
68000 CPUs do not save format in the exception stack frame. This patch adds feature checking to prevent format saving for 68000. m68k_ret() already includes this modification, this patch fixes the exception processing function too. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180413133041.29509.59064.stgit@pasha-VirtualBox> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-04-11icount: fix cpu_restore_state_from_tb for non-tb-exit casesPavel Dovgalyuk1-2/+2
In icount mode, instructions that access io memory spaces in the middle of the translation block invoke TB recompilation. After recompilation, such instructions become last in the TB and are allowed to access io memory spaces. When the code includes instruction like i386 'xchg eax, 0xffffd080' which accesses APIC, QEMU goes into an infinite loop of the recompilation. This instruction includes two memory accesses - one read and one write. After the first access, APIC calls cpu_report_tpr_access, which restores the CPU state to get the current eip. But cpu_restore_state_from_tb resets the cpu->can_do_io flag which makes the second memory access invalid. Therefore the second memory access causes a recompilation of the block. Then these operations repeat again and again. This patch moves resetting cpu->can_do_io flag from cpu_restore_state_from_tb to cpu_loop_exit* functions. It also adds a parameter for cpu_restore_state which controls restoring icount. There is no need to restore icount when we only query CPU state without breaking the TB. Restoring it in such cases leads to the incorrect flow of the virtual time. In most cases new parameter is true (icount should be recalculated). But there are two cases in i386 and openrisc when the CPU state is only queried without the need to break the TB. This patch fixes both of these cases. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> Message-Id: <20180409091320.12504.35329.stgit@pasha-VirtualBox> [rth: Make can_do_io setting unconditional; move from cpu_exec; make cpu_loop_exit_{noexc,restore} call cpu_loop_exit.] Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-03-20Merge remote-tracking branch ↵Peter Maydell1-36/+66
'remotes/vivier/tags/m68k-for-2.12-pull-request' into staging # gpg: Signature made Tue 20 Mar 2018 09:07:55 GMT # gpg: using RSA key F30C38BD3F2FBE3C # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" # gpg: aka "Laurent Vivier <laurent@vivier.eu>" # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * remotes/vivier/tags/m68k-for-2.12-pull-request: target/m68k: add a mechanism to automatically free TCGv target/m68k: add DisasContext parameter to gen_extend() Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-20target/m68k: add a mechanism to automatically free TCGvLaurent Vivier1-13/+43
SRC_EA() and gen_extend() can return either a temporary TCGv or a memory allocated one. Mark them when they are allocated, and free them automatically at end of the instruction translation. We want to free locally allocated TCGv to avoid overflow in sequence like: 0xc00ae406: movel %fp@(-132),%fp@(-268) 0xc00ae40c: movel %fp@(-128),%fp@(-264) 0xc00ae412: movel %fp@(-20),%fp@(-212) 0xc00ae418: movel %fp@(-16),%fp@(-208) 0xc00ae41e: movel %fp@(-60),%fp@(-220) 0xc00ae424: movel %fp@(-56),%fp@(-216) 0xc00ae42a: movel %fp@(-124),%fp@(-252) 0xc00ae430: movel %fp@(-120),%fp@(-248) 0xc00ae436: movel %fp@(-12),%fp@(-260) 0xc00ae43c: movel %fp@(-8),%fp@(-256) 0xc00ae442: movel %fp@(-52),%fp@(-276) 0xc00ae448: movel %fp@(-48),%fp@(-272) ... That can fill a lot of TCGv entries in a sequence, especially since 15fa08f845 ("tcg: Dynamically allocate TCGOps") we have no limit to fill the TCGOps cache and we can fill the entire TCG variables array and overflow it. Suggested-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180319113544.704-3-laurent@vivier.eu>
2018-03-20target/m68k: add DisasContext parameter to gen_extend()Laurent Vivier1-23/+23
This parameter will be needed to manage automatic release of temporary allocated TCG variables. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180319113544.704-2-laurent@vivier.eu>
2018-03-19cpu: get rid of unused cpu_init() definesIgor Mammedov1-2/+0
cpu_init(cpu_model) were replaced by cpu_create(cpu_type) so no users are left, remove it. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> (ppc) Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <1518000027-274608-6-git-send-email-imammedo@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-03-19cpu: add CPU_RESOLVING_TYPE macroIgor Mammedov1-0/+1
it will be used for providing to cpu name resolving class for parsing cpu model for system and user emulation code. Along with change add target to null-machine tests, so that when switch to CPU_RESOLVING_TYPE happens, it would ensure that null-machine usecase still works. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> (m68k) Acked-by: David Gibson <david@gibson.dropbear.id.au> (ppc) Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> (tricore) Message-Id: <1518000027-274608-4-git-send-email-imammedo@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> [ehabkost: Added macro to riscv too] Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-03-13target/m68k: implement fcoshLaurent Vivier5-0/+91
Using a local m68k floatx80_cosh() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180312202728.23790-12-laurent@vivier.eu>
2018-03-13target/m68k: implement fsinhLaurent Vivier5-0/+99
Using a local m68k floatx80_sinh() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180312202728.23790-11-laurent@vivier.eu>
2018-03-13target/m68k: implement ftanhLaurent Vivier5-0/+377
Using local m68k floatx80_tanh() and floatx80_etoxm1() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180312202728.23790-10-laurent@vivier.eu>
2018-03-13target/m68k: implement fatanhLaurent Vivier5-0/+75
Using a local m68k floatx80_atanh() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180312202728.23790-9-laurent@vivier.eu>
2018-03-13target/m68k: implement facosLaurent Vivier5-0/+80
Using a local m68k floatx80_acos() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180312202728.23790-8-laurent@vivier.eu>
2018-03-13target/m68k: implement fasinLaurent Vivier5-0/+75
Using a local m68k floatx80_asin() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180312202728.23790-7-laurent@vivier.eu>
2018-03-13target/m68k: implement fatanLaurent Vivier6-0/+341
Using a local m68k floatx80_atan() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180312202728.23790-6-laurent@vivier.eu>
2018-03-13target/m68k: implement fsincosLaurent Vivier3-0/+20
using floatx80_sin() and floatx80_cos() Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180312202728.23790-5-laurent@vivier.eu>
2018-03-13target/m68k: implement fcosLaurent Vivier5-0/+254
Using a local m68k floatx80_cos() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180312202728.23790-4-laurent@vivier.eu>
2018-03-13target/m68k: implement fsinLaurent Vivier5-0/+257
Using a local m68k floatx80_sin() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180312202728.23790-3-laurent@vivier.eu>
2018-03-13target/m68k: implement ftanLaurent Vivier6-0/+356
Using a local m68k floatx80_tan() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180312202728.23790-2-laurent@vivier.eu>
2018-03-09target/m68k: implement ftentoxLaurent Vivier5-0/+163
Using a local m68k floatx80_tentox() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180305203910.10391-9-laurent@vivier.eu>
2018-03-09target/m68k: implement ftwotoxLaurent Vivier6-0/+244
Using a local m68k floatx80_twotox() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180305203910.10391-8-laurent@vivier.eu>
2018-03-09target/m68k: implement fetoxLaurent Vivier6-0/+327
Using a local m68k floatx80_etox() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180305203910.10391-7-laurent@vivier.eu>
2018-03-09target/m68k: implement flog2Laurent Vivier5-0/+77
Using a local m68k floatx80_log2() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180305203910.10391-6-laurent@vivier.eu>
2018-03-09target/m68k: implement flog10Laurent Vivier5-0/+67
Using a local m68k floatx80_log10() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180305203910.10391-5-laurent@vivier.eu>
2018-03-09target/m68k: implement flognLaurent Vivier5-0/+178
Using a local m68k floatx80_logn() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180305203910.10391-4-laurent@vivier.eu>
2018-03-09target/m68k: implement flognp1Laurent Vivier6-0/+380
Using a local m68k floatx80_lognp1() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180305203910.10391-3-laurent@vivier.eu>
2018-03-09target/m68k: define floatx80_move()Laurent Vivier2-0/+28
This functions is needed by upcoming m68k softfloat functions. Source code copied for WinUAE (tag 3500) (The WinUAE file has been copied from QEMU and has the QEMU licensing notice) Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180305203910.10391-2-laurent@vivier.eu>
2018-03-04target/m68k: add fscale, fgetman and fgetexpLaurent Vivier5-0/+174
Using local m68k floatx80_getman(), floatx80_getexp(), floatx80_scale() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180224201802.911-5-laurent@vivier.eu>
2018-03-04target/m68k: add fmod/fremLaurent Vivier7-2/+176
Using a local m68k floatx80_mod() [copied from previous: Written by Andreas Grabher for Previous, NeXT Computer Emulator.] The quotient byte of the FPSR is updated with the result of the operation. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180224201802.911-3-laurent@vivier.eu>
2018-03-04target/m68k: TCGv returned by gen_load() must be freedLaurent Vivier1-0/+11
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180217235920.2254-1-laurent@vivier.eu>
2018-02-21target/*/cpu.h: remove softfloat.hAlex Bennée5-2/+5
As cpu.h is another typically widely included file which doesn't need full access to the softfloat API we can remove the includes from here as well. Where they do need types it's typically for float_status and the rounding modes so we move that to softfloat-types.h as well. As a result of not having softfloat in every cpu.h call we now need to add it to various helpers that do need the full softfloat.h definitions. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> [For PPC parts] Acked-by: David Gibson <david@gibson.dropbear.id.au>
generated by cgit v1.1 at 2024-12-26 08:22:54 +0000