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2020-02-03ubsan: m32c: left shift of negative valueAlan Modra1-4/+4
cpu/ * m32c.cpu (f-dsp-64-s16): Mask before shifting signed value. opcodes/ * m32c-ibld.c: Regenerate.
2020-01-30ubsan: m32c: left shift of negative valueAlan Modra1-18/+18
More nonsense fixing "bugs" with left shifts of signed values. Yes, the C standard does say this is undefined (and right shifts of signed values are implementation defined BTW) but in practice there is no problem with current machines. 1's complement is a thing of the past. cpu/ * m32c.cpu (f-src32-rn-unprefixed-QI): Shift before inverting. (f-src32-rn-prefixed-QI, f-dst32-rn-unprefixed-QI): Likewise. (f-dst32-rn-prefixed-QI): Likewise. (f-dsp-32-s32): Mask before shifting left. (f-dsp-48-u32, f-dsp-48-s32): Likewise. (f-bitbase32-16-s11-unprefixed): Multiply signed field rather than shifting left. (f-bitbase32-24-s11-prefixed, f-bitbase32-24-s19-prefixed): Likewise. (h-gr-SI): Mask before shifting. opcodes/ * m32c-ibld.c: Regenerate.
2020-01-06ubsan: m32c: left shift of negative valueAlan Modra1-51/+54
There are probably a lot more of these still here. cpu/ * m32c.cpu (f-dsp-8-u16, f-dsp-8-s16): Rearrange to mask any sign bits before shifting rather than masking after shifting. (f-dsp-16-u16, f-dsp-16-s16, f-dsp-32-u16, f-dsp-32-s16): Likewise. (f-dsp-40-u16, f-dsp-40-s16, f-dsp-48-u16, f-dsp-48-s16): Likewise. (f-dsp-64-u16, f-dsp-8-s24): Likewise. (f-bitbase32-16-s19-unprefixed): Avoid signed left shift. opcodes/ * m32c-ibld.c: Regenerate.
2019-12-11Remove more shifts for sign/zero extensionAlan Modra1-3/+6
cpu/ * epiphany.cpu (f-sdisp11): Don't sign extend with shifts. * lm32.cpu (f-branch, f-vall): Likewise. * m32.cpu (f-lab-8-16): Likewise. opcodes/ * arc-dis.c (BITS): Don't truncate high bits with shifts. * nios2-dis.c (nios2_print_insn_arg): Don't sign extend with shifts. * tic54x-dis.c (print_instruction): Likewise. * tilegx-opc.c (parse_insn_tilegx): Likewise. * tilepro-opc.c (parse_insn_tilepro): Likewise. * visium-dis.c (disassem_class0): Likewise. * pdp11-dis.c (sign_extend): Likewise. (SIGN_BITS): Delete. * epiphany-ibld.c: Regenerate. * lm32-ibld.c: Regenerate. * m32c-ibld.c: Regenerate.
2010-07-03* m32c.cpu (f-dsp-8-s24): Mask high byte after shifting it.DJ Delorie1-2/+2
* m32c-ibld.c: Regenerate.
2010-01-06 cpu/Doug Evans1-12/+13
* m32c.cpu (f-dsp-32-u24): Fix mode of extract handler. (f-dsp-40-u20, f-dsp-40-u24): Ditto. opcodes/ * cgen-ibld.in: #include "cgen/basic-modes.h". * fr30-ibld.c, * frv-ibld.c, * ip2k-ibld.c, * iq2000-ibld.c, * lm32-ibld.c, * m32c-ibld.c, * m32r-ibld.c, * mep-ibld.c, * mt-ibld.c, * openrisc-ibld.c, * xc16x-ibld.c, * xstormy16-ibld.c: Regenerate.
2009-09-02update copyright datesAlan Modra1-1/+1
2007-07-05Change source files over to GPLv3.Nick Clifton1-3/+4
2007-03-29* m32c.cpu (Imm-8-s4n): Fix print hook.DJ Delorie1-7/+7
(Lab-24-8, Lab-32-8, Lab-40-8): Fix. (arith-jnz-imm4-dst-defn): Make relaxable. (arith-jnz16-imm4-dst-defn): Fix encodings. * m32c-desc.c: Regenerate. * m32c-dis.c: Regenerate. * m32c-opc.c: Regenerate. * config/tc-m32c.c (rl_for, relaxable): Protect argument. (md_relax_table): Add entries for ADJNZ macros. (M32C_Macros): Add ADJNZ macros. (subtype_mappings): Add entries for ADJNZ macros. (insn_to_subtype): Check for adjnz and sbjnz insns. (md_estimate_size_before_relax): Pass insn to insn_to_subtype. (md_convert_frag): Convert adjnz and sbjnz.
2007-03-21* m32c.cpu (f-dsp-40-u20, f-dsp-48-u20, Dsp-40-u20, Dsp-40-u20,DJ Delorie1-11/+100
mem20): New. (src16-16-20-An-relative-*): New. (dst16-*-20-An-relative-*): New. (dst16-16-16sa-*): New (dst16-16-16ar-*): New (dst32-16-16sa-Unprefixed-*): New (jsri): Fix operands. (setzx): Fix encoding. * m32c-asm.c: Regenerate. * m32c-desc.c: Regenerate. * m32c-desc.h: Regenerate. * m32c-dis.h: Regenerate. * m32c-ibld.c: Regenerate. * m32c-opc.c: Regenerate. * m32c-opc.h: Regenerate.
2006-03-14* m32c.cpu (Bit3-S): New.DJ Delorie1-1/+8
(btst:s): New. * m32c.opc (parse_bit3_S): New.
2006-03-14* m32c.cpu (decimal-subtraction16-insn): Add second operand.DJ Delorie1-5/+14
(btst): Add optional :G suffix for MACH32. (or.b:S): New. (pop.w:G): Add optional :G suffix for MACH16. (push.b.imm): Fix syntax.
2006-03-11* m32c.cpu (mul.l): New.DJ Delorie1-0/+11
(mulu.l): New. * m32c-desc.c: Regenerate with mul.l, mulu.l. * m32c-opc.c: Likewise. * m32c-opc.h: Likewise.
2006-02-24[include/elf]DJ Delorie1-26/+38
* m32c.h: Add relax relocs. [cpu] * m32c.cpu (RL_TYPE): New attribute, with macros. (Lab-8-24): Add RELAX. (unary-insn-defn-g, binary-arith-imm-dst-defn, binary-arith-imm4-dst-defn): Add 1ADDR attribute. (binary-arith-src-dst-defn): Add 2ADDR attribute. (jcnd16-5, jcnd16, jcnd32, jmp16.s, jmp16.b, jmp16.w, jmp16.a, jmp32.s, jmp32.b, jmp32.w, jmp32.a, jsr16.w, jsr16.a): Add JUMP attribute. (jsri16, jsri32): Add 1ADDR attribute. (jsr32.w, jsr32.a): Add JUMP attribute. [opcodes] * m32c-desc.c: Regenerate with linker relaxation attributes. * m32c-desc.h: Likewise. * m32c-dis.c: Likewise. * m32c-opc.c: Likewise. [gas] * config/tc-m32c.h (md_apply_fix): Define to m32c_apply_fix. (tc_gen_reloc): Don't define. * config/tc-m32c.c (rl_for, relaxable): New convenience macros. (OPTION_LINKRELAX): New. (md_longopts): Add it. (m32c_relax): New. (md_parse_options): Set it. (md_assemble): Emit relaxation relocs as needed. (md_convert_frag): Emit relaxation relocs as needed. (md_cgen_lookup_reloc): Add LAB_8_8 and LAB_8_16. (m32c_apply_fix): New. (tc_gen_reloc): New. (m32c_force_relocation): Force out jump relocs when relaxing. (m32c_fix_adjustable): Return false if relaxing. [bfd] * elf32-m32c.c (m32c_elf_howto_table): Add relaxation relocs. (m32c_elf_relocate_section): Don't relocate them. (compare_reloc): New. (relax_reloc): Remove. (m32c_offset_for_reloc): New. (m16c_addr_encodings): New. (m16c_jmpaddr_encodings): New. (m32c_addr_encodings): New. (m32c_elf_relax_section): Relax jumps and address displacements. (m32c_elf_relax_delete_bytes): Adjust for internal syms. Fix up short jumps. * reloc.c: Add m32c relax relocs. * libbfd.h: Regenerate.
2006-01-06* m32c.cpu (mov.w:q): Fix mode.DJ Delorie1-2/+2
(push32.b.imm): Likewise, for the comment.
2005-12-14* m32c.cpu (jsri): Fix order so register names aren't treated asDJ Delorie1-13/+17
symbols. (indexb, indexbd, indexbs, indexl, indexld, indexls, indexw, indexwd, indexws): Fix encodings. * m32c-desc.c: Regenerate. * m32c-opc.c: Regenerate. * m32c-opc.h: Regenerate.
2005-10-27* m32c.cpu (Imm-8-s4n, Imm-12-s4n): New.DJ Delorie1-46/+82
(arith-jnz16-imm4-dst-defn, arith-jnz32-imm4-dst-defn, arith-jnz-imm4-dst-mach, arith-jnz-imm4-dst): Keep track of which imm operand is needed. (adjnz, sbjnz): Pass the right operands. (unary-insn-defn, unary16-defn, unary32-defn, unary-insn-mach, unary-insn): Add -g variants for opcodes that need to support :G. (not.BW:G, push.BW:G): Call it. (stzx16-imm8-imm8-dsp8sb, stzx16-imm8-imm8-dsp8fb, stzx16-imm8-imm8-abs16): Fix operand typos. * m32c.opc (m32c_asm_hash): Support bnCND. (parse_signed4n, print_signed4n): New. * m32c-asm.c: Regenerate. * m32c-desc.c: Regenerate. * m32c-desc.h: Regenerate. * m32c-dis.c: Regenerate. * m32c-ibld.c: Regenerate. * m32c-opc.c: Regenerate. * m32c-opc.h: Regenerate.
2005-10-26* m32c.cpu (f-dsp-8-s24, Dsp-8-s24): New.DJ Delorie1-36/+49
(mov-dspsp-dst-defn, mov-src-dspsp-defn, mov16-dspsp-dst-defn, mov16-src-dspsp-defn, mov32-dspsp-dst-defn, mov32-src-dspsp-defn): dsp8[sp] is signed. (mov.WL:S #imm,A0/A1): dsp24 is signed (i.e. -0x800000..0xffffff). (mov.BW:S r0,r1): Fix typo r1l->r1. (tst): Allow :G suffix. * m32c.opc (parse_signed24): New, for -0x800000..0xffffff. * m32c-asm.c: Regenerate. * m32c-desc.c: Regenerate. * m32c-desc.h: Regenerate. * m32c-dis.c: Regenerate. * m32c-ibld.c: Regenerate. * m32c-opc.c: Regenerate. * m32c-opc.h: Regenerate.
2005-10-25* m32c.cpu (add16-bQ-sp,add16-wQ-sp): Fix to allow either width byDJ Delorie1-3/+6
making one a macro of the other. * m32c-asm.c: Regenerate. * m32c-desc.c: Regenerate. * m32c-desc.h: Regenerate. * m32c-dis.c: Regenerate. * m32c-ibld.c: Regenerate. * m32c-opc.c: Regenerate. * m32c-opc.h: Regenerate.
2005-10-22[cpu]DJ Delorie1-74/+96
* m32c.cpu (lde, ste): Add dsp[a0] and [a1a] addressing. (indexb, indexbd, indexbs, indexw, indexwd, indexws, indexl, indexld, indexls): .w variants have `1' bit. (rot32.b): QI, not SI. (rot32.w): HI, not SI. (xchg16): HI for .w variant. [opcodes] * m32c-asm.c: Regenerate. * m32c-desc.c: Regenerate. * m32c-desc.h: Regenerate. * m32c-dis.c: Regenerate. * m32c-ibld.c: Regenerate. * m32c-opc.c: Regenerate. * m32c-opc.h: Regenerate.
2005-07-18Fix building for MS1 and M32C.Nick Clifton1-34/+57
Restore alpha- sorting to the architecture tables.
2005-07-15* m32c.cpu, m32c.opc: Fix copyright.Jim Blandy1-3/+20
2005-07-14ChangeLog:Jim Blandy1-0/+10273
2005-07-14 Jim Blandy <jimb@redhat.com> * configure.in: Add cases for Renesas m32c. * configure: Regenerated. bfd/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> Add support for m32c-*-elf (Renesas m32c and m16c). * Makefile.am (ALL_MACHINES): Add cpu-m32c.lo. (ALL_MACHINES_CFILES): Add cpu-m32c.c. (BFD32_BACKENDS): Add elf32-m32c.lo. (BFD32_BACKENDS_CFILES): Add elf32-m32c.c. (cpu-m32c.lo, elf32-m32c.lo): New rules, generated by 'make dep-am'. * Makefile.in: Regenerated. * archures.c (bfd_arch_m32c, bfd_mach_m16c, bfd_mach_m32c): New arch and mach codes. (bfd_m32c_arch): New arch info object. (bfd_archures_list): List bfd_m32c_arch. * bfd-in2.h: Regenerated. * config.bfd: Add case for the m32c. * configure.in: Add case for the m32c. * configure: Regenerated. * cpu-m32c.c, elf32-m32c.c: New files. * libbfd.h: Regenerated. * targets.c (bfd_elf32_m32c_vec): Declare. (_bfd_target_vector): List bfd_elf32_m32c_vec. binutils/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> * readelf.c: #include "elf/m32c.h" (guess_is_rela, dump_relocations, get_machine_name): Add cases for EM_M32C. * Makefile.am (readelf.o): Update dependencies. * Makefile.in: Regenerated. cpu/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> * m32c.cpu, m32c.opc: Machine description for the Renesas M32C. gas/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> Add support for the Renesas M32C. * Makefile.am (CPU_TYPES): List m32c. (TARGET_CPU_CFILES): List config/tc-m32c.c. (TARGET_CPU_HFILES): List config/tc-m32c.h. * configure.in: Add case for m32c. * configure.tgt: Add cases for m32c and m32c-*-elf. * configure: Regenerated. * config/tc-m32c.c, config/tc-m32c.h: New files. * doc/Makefile.am (CPU_DOCS): Add c-m32c.texi. * doc/Makefile.in: Regenerated. * doc/all.texi: Set M32C. * doc/as.texinfo: Add text for the M32C-specific options and line comment characters, and refer to c-m32c.texi. * doc/c-m32c.texi: New file. include/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> * dis-asm.h (print_insn_m32c): New declaration. include/elf/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> Add support for Renesas M32C and M16C. * common.h (EM_M32C): New machine number. * m32c.h: New file. ld/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> Add support for the Renesas M32C and M16C. * Makefile.am (ALL_EMULATIONS): Add eelf32m32c.o. (eelf32m32c.c): New target. * Makefile.in: Regenerated. * configure.tgt: Add case for m32c-*-elf. * emulparams/elf32m32c.sh: New file. opcodes/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> Add support for the Renesas M32C and M16C. * m32c-asm.c, m32c-desc.c, m32c-dis.c, m32c-ibld.c, m32c-opc.c: New. * m32c-desc.h, m32c-opc.h: New. * Makefile.am (HFILES): List m32c-desc.h and m32c-opc.h. (CFILES): List m32c-asm.c, m32c-desc.c, m32c-dis.c, m32c-ibld.c, m32c-opc.c. (ALL_MACHINES): List m32c-asm.lo, m32c-desc.lo, m32c-dis.lo, m32c-ibld.lo, m32c-opc.lo. (CLEANFILES): List stamp-m32c. (M32C_DEPS): List stamp-m32c, if CGEN_MAINT. (CGEN_CPUS): Add m32c. (m32c-asm.c, m32c-desc.c, m32c-dis.c, m32c-ibld.c, m32c-opc.c) (m32c-desc.h, m32c-opc.h): Depend on M32C_DEPS. (m32c_opc_h): New variable. (stamp-m32c, m32c-asm.lo, m32c-desc.lo, m32c-dis.lo, m32c-ibld.lo) (m32c-opc.lo): New rules. * Makefile.in: Regenerated. * configure.in: Add case for bfd_m32c_arch. * configure: Regenerated. * disassemble.c (ARCH_m32c): New. [ARCH_m32c]: #include "m32c-desc.h". (disassembler) [ARCH_m32c]: Add case for bfd_arch_m32c. (disassemble_init_for_target) [ARCH_m32c]: Same. * cgen-ops.h, cgen-types.h: New files. * Makefile.am (HFILES): List them. * Makefile.in: Regenerated.
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