diff options
Diffstat (limited to 'src/arch/arm')
| -rw-r--r-- | src/arch/arm/intregs.hh | 9 | ||||
| -rw-r--r-- | src/arch/arm/isa/formats/aarch64.isa | 120 |
2 files changed, 72 insertions, 57 deletions
diff --git a/src/arch/arm/intregs.hh b/src/arch/arm/intregs.hh index fa18aa68d..f96db30d3 100644 --- a/src/arch/arm/intregs.hh +++ b/src/arch/arm/intregs.hh @@ -1,5 +1,5 @@ /* - * Copyright (c) 2010-2013 ARM Limited + * Copyright (c) 2010-2014 ARM Limited * All rights reserved * * The license below extends only to copyright in the software and shall @@ -510,6 +510,13 @@ makeSP(IntRegIndex reg) return reg; } +static inline IntRegIndex +makeZero(IntRegIndex reg) +{ + if (reg == INTREG_X31) + reg = INTREG_ZERO; + return reg; +} static inline bool isSP(IntRegIndex reg) diff --git a/src/arch/arm/isa/formats/aarch64.isa b/src/arch/arm/isa/formats/aarch64.isa index c7cc776e3..04a8ba527 100644 --- a/src/arch/arm/isa/formats/aarch64.isa +++ b/src/arch/arm/isa/formats/aarch64.isa @@ -1,4 +1,4 @@ -// Copyright (c) 2011-2013 ARM Limited +// Copyright (c) 2011-2014 ARM Limited // All rights reserved // // The license below extends only to copyright in the software and shall @@ -63,6 +63,7 @@ namespace Aarch64 { IntRegIndex rd = (IntRegIndex)(uint32_t)bits(machInst, 4, 0); IntRegIndex rdsp = makeSP(rd); + IntRegIndex rdzr = makeZero(rd); IntRegIndex rn = (IntRegIndex)(uint32_t)bits(machInst, 9, 5); IntRegIndex rnsp = makeSP(rn); @@ -79,9 +80,9 @@ namespace Aarch64 uint64_t immhi = bits(machInst, 23, 5); uint64_t imm = (immlo << 0) | (immhi << 2); if (bits(machInst, 31) == 0) - return new AdrXImm(machInst, rd, INTREG_ZERO, sext<21>(imm)); + return new AdrXImm(machInst, rdzr, INTREG_ZERO, sext<21>(imm)); else - return new AdrpXImm(machInst, rd, INTREG_ZERO, + return new AdrpXImm(machInst, rdzr, INTREG_ZERO, sext<33>(imm << 12)); } case 0x2: @@ -100,11 +101,11 @@ namespace Aarch64 case 0x0: return new AddXImm(machInst, rdsp, rnsp, imm); case 0x1: - return new AddXImmCc(machInst, rd, rnsp, imm); + return new AddXImmCc(machInst, rdzr, rnsp, imm); case 0x2: return new SubXImm(machInst, rdsp, rnsp, imm); case 0x3: - return new SubXImmCc(machInst, rd, rnsp, imm); + return new SubXImmCc(machInst, rdzr, rnsp, imm); } } case 0x4: @@ -146,23 +147,24 @@ namespace Aarch64 case 0x2: return new EorXImm(machInst, rdsp, rn, imm); case 0x3: - return new AndXImmCc(machInst, rd, rn, imm); + return new AndXImmCc(machInst, rdzr, rn, imm); } } case 0x5: { IntRegIndex rd = (IntRegIndex)(uint32_t)bits(machInst, 4, 0); + IntRegIndex rdzr = makeZero(rd); uint32_t imm16 = bits(machInst, 20, 5); uint32_t hw = bits(machInst, 22, 21); switch (opc) { case 0x0: - return new Movn(machInst, rd, imm16, hw * 16); + return new Movn(machInst, rdzr, imm16, hw * 16); case 0x1: return new Unknown64(machInst); case 0x2: - return new Movz(machInst, rd, imm16, hw * 16); + return new Movz(machInst, rdzr, imm16, hw * 16); case 0x3: - return new Movk(machInst, rd, imm16, hw * 16); + return new Movk(machInst, rdzr, imm16, hw * 16); } } case 0x6: @@ -170,11 +172,11 @@ namespace Aarch64 return new Unknown64(machInst); switch (opc) { case 0x0: - return new Sbfm64(machInst, rd, rn, immr, imms); + return new Sbfm64(machInst, rdzr, rn, immr, imms); case 0x1: - return new Bfm64(machInst, rd, rn, immr, imms); + return new Bfm64(machInst, rdzr, rn, immr, imms); case 0x2: - return new Ubfm64(machInst, rd, rn, immr, imms); + return new Ubfm64(machInst, rdzr, rn, immr, imms); case 0x3: return new Unknown64(machInst); } @@ -184,7 +186,7 @@ namespace Aarch64 if (opc || bits(machInst, 21)) return new Unknown64(machInst); else - return new Extr64(machInst, rd, rn, rm, imms); + return new Extr64(machInst, rdzr, rn, rm, imms); } } return new FailUnimplemented("Unhandled Case8", machInst); @@ -1026,26 +1028,27 @@ namespace Aarch64 if (!sf && (imm6 & 0x20)) return new Unknown64(machInst); IntRegIndex rd = (IntRegIndex)(uint8_t)bits(machInst, 4, 0); + IntRegIndex rdzr = makeZero(rd); IntRegIndex rn = (IntRegIndex)(uint8_t)bits(machInst, 9, 5); IntRegIndex rm = (IntRegIndex)(uint8_t)bits(machInst, 20, 16); switch (switchVal) { case 0x0: - return new AndXSReg(machInst, rd, rn, rm, imm6, type); + return new AndXSReg(machInst, rdzr, rn, rm, imm6, type); case 0x1: - return new BicXSReg(machInst, rd, rn, rm, imm6, type); + return new BicXSReg(machInst, rdzr, rn, rm, imm6, type); case 0x2: - return new OrrXSReg(machInst, rd, rn, rm, imm6, type); + return new OrrXSReg(machInst, rdzr, rn, rm, imm6, type); case 0x3: - return new OrnXSReg(machInst, rd, rn, rm, imm6, type); + return new OrnXSReg(machInst, rdzr, rn, rm, imm6, type); case 0x4: - return new EorXSReg(machInst, rd, rn, rm, imm6, type); + return new EorXSReg(machInst, rdzr, rn, rm, imm6, type); case 0x5: - return new EonXSReg(machInst, rd, rn, rm, imm6, type); + return new EonXSReg(machInst, rdzr, rn, rm, imm6, type); case 0x6: - return new AndXSRegCc(machInst, rd, rn, rm, imm6, type); + return new AndXSRegCc(machInst, rdzr, rn, rm, imm6, type); case 0x7: - return new BicXSRegCc(machInst, rd, rn, rm, imm6, type); + return new BicXSRegCc(machInst, rdzr, rn, rm, imm6, type); } } case 0x1: @@ -1060,17 +1063,18 @@ namespace Aarch64 if (!bits(machInst, 31) && bits(imm6, 5)) return new Unknown64(machInst); IntRegIndex rd = (IntRegIndex)(uint8_t)bits(machInst, 4, 0); + IntRegIndex rdzr = makeZero(rd); IntRegIndex rn = (IntRegIndex)(uint8_t)bits(machInst, 9, 5); IntRegIndex rm = (IntRegIndex)(uint8_t)bits(machInst, 20, 16); switch (switchVal) { case 0x0: - return new AddXSReg(machInst, rd, rn, rm, imm6, type); + return new AddXSReg(machInst, rdzr, rn, rm, imm6, type); case 0x1: - return new AddXSRegCc(machInst, rd, rn, rm, imm6, type); + return new AddXSRegCc(machInst, rdzr, rn, rm, imm6, type); case 0x2: - return new SubXSReg(machInst, rd, rn, rm, imm6, type); + return new SubXSReg(machInst, rdzr, rn, rm, imm6, type); case 0x3: - return new SubXSRegCc(machInst, rd, rn, rm, imm6, type); + return new SubXSRegCc(machInst, rdzr, rn, rm, imm6, type); } } else { if (bits(machInst, 23, 22) != 0 || bits(machInst, 12, 10) > 0x4) @@ -1080,6 +1084,7 @@ namespace Aarch64 uint8_t imm3 = bits(machInst, 12, 10); IntRegIndex rd = (IntRegIndex)(uint8_t)bits(machInst, 4, 0); IntRegIndex rdsp = makeSP(rd); + IntRegIndex rdzr = makeZero(rd); IntRegIndex rn = (IntRegIndex)(uint8_t)bits(machInst, 9, 5); IntRegIndex rnsp = makeSP(rn); IntRegIndex rm = (IntRegIndex)(uint8_t)bits(machInst, 20, 16); @@ -1088,11 +1093,11 @@ namespace Aarch64 case 0x0: return new AddXEReg(machInst, rdsp, rnsp, rm, type, imm3); case 0x1: - return new AddXERegCc(machInst, rd, rnsp, rm, type, imm3); + return new AddXERegCc(machInst, rdzr, rnsp, rm, type, imm3); case 0x2: return new SubXEReg(machInst, rdsp, rnsp, rm, type, imm3); case 0x3: - return new SubXERegCc(machInst, rd, rnsp, rm, type, imm3); + return new SubXERegCc(machInst, rdzr, rnsp, rm, type, imm3); } } } @@ -1101,6 +1106,7 @@ namespace Aarch64 if (bits(machInst, 21) == 1) return new Unknown64(machInst); IntRegIndex rd = (IntRegIndex)(uint8_t)bits(machInst, 4, 0); + IntRegIndex rdzr = makeZero(rd); IntRegIndex rn = (IntRegIndex)(uint8_t)bits(machInst, 9, 5); IntRegIndex rm = (IntRegIndex)(uint8_t)bits(machInst, 20, 16); switch (bits(machInst, 23, 22)) { @@ -1111,13 +1117,13 @@ namespace Aarch64 uint8_t switchVal = bits(machInst, 30, 29); switch (switchVal) { case 0x0: - return new AdcXSReg(machInst, rd, rn, rm, 0, LSL); + return new AdcXSReg(machInst, rdzr, rn, rm, 0, LSL); case 0x1: - return new AdcXSRegCc(machInst, rd, rn, rm, 0, LSL); + return new AdcXSRegCc(machInst, rdzr, rn, rm, 0, LSL); case 0x2: - return new SbcXSReg(machInst, rd, rn, rm, 0, LSL); + return new SbcXSReg(machInst, rdzr, rn, rm, 0, LSL); case 0x3: - return new SbcXSRegCc(machInst, rd, rn, rm, 0, LSL); + return new SbcXSRegCc(machInst, rdzr, rn, rm, 0, LSL); } } case 0x1: @@ -1157,19 +1163,20 @@ namespace Aarch64 uint8_t switchVal = (bits(machInst, 10) << 0) | (bits(machInst, 30) << 1); IntRegIndex rd = (IntRegIndex)(uint8_t)bits(machInst, 4, 0); + IntRegIndex rdzr = makeZero(rd); IntRegIndex rn = (IntRegIndex)(uint8_t)bits(machInst, 9, 5); IntRegIndex rm = (IntRegIndex)(uint8_t)bits(machInst, 20, 16); ConditionCode cond = (ConditionCode)(uint8_t)bits(machInst, 15, 12); switch (switchVal) { case 0x0: - return new Csel64(machInst, rd, rn, rm, cond); + return new Csel64(machInst, rdzr, rn, rm, cond); case 0x1: - return new Csinc64(machInst, rd, rn, rm, cond); + return new Csinc64(machInst, rdzr, rn, rm, cond); case 0x2: - return new Csinv64(machInst, rd, rn, rm, cond); + return new Csinv64(machInst, rdzr, rn, rm, cond); case 0x3: - return new Csneg64(machInst, rd, rn, rm, cond); + return new Csneg64(machInst, rdzr, rn, rm, cond); } } case 0x3: @@ -1179,17 +1186,17 @@ namespace Aarch64 uint8_t switchVal = bits(machInst, 15, 10); switch (switchVal) { case 0x2: - return new Udiv64(machInst, rd, rn, rm); + return new Udiv64(machInst, rdzr, rn, rm); case 0x3: - return new Sdiv64(machInst, rd, rn, rm); + return new Sdiv64(machInst, rdzr, rn, rm); case 0x8: - return new Lslv64(machInst, rd, rn, rm); + return new Lslv64(machInst, rdzr, rn, rm); case 0x9: - return new Lsrv64(machInst, rd, rn, rm); + return new Lsrv64(machInst, rdzr, rn, rm); case 0xa: - return new Asrv64(machInst, rd, rn, rm); + return new Asrv64(machInst, rdzr, rn, rm); case 0xb: - return new Rorv64(machInst, rd, rn, rm); + return new Rorv64(machInst, rdzr, rn, rm); default: return new Unknown64(machInst); } @@ -1201,22 +1208,22 @@ namespace Aarch64 uint8_t switchVal = bits(machInst, 15, 10); switch (switchVal) { case 0x0: - return new Rbit64(machInst, rd, rn); + return new Rbit64(machInst, rdzr, rn); case 0x1: - return new Rev1664(machInst, rd, rn); + return new Rev1664(machInst, rdzr, rn); case 0x2: if (bits(machInst, 31) == 0) - return new Rev64(machInst, rd, rn); + return new Rev64(machInst, rdzr, rn); else - return new Rev3264(machInst, rd, rn); + return new Rev3264(machInst, rdzr, rn); case 0x3: if (bits(machInst, 31) != 1) return new Unknown64(machInst); - return new Rev64(machInst, rd, rn); + return new Rev64(machInst, rdzr, rn); case 0x4: - return new Clz64(machInst, rd, rn); + return new Clz64(machInst, rdzr, rn); case 0x5: - return new Cls64(machInst, rd, rn); + return new Cls64(machInst, rdzr, rn); } } } @@ -1227,33 +1234,34 @@ namespace Aarch64 (bits(machInst, 23, 21) != 0 && bits(machInst, 31) == 0)) return new Unknown64(machInst); IntRegIndex rd = (IntRegIndex)(uint8_t)bits(machInst, 4, 0); + IntRegIndex rdzr = makeZero(rd); IntRegIndex rn = (IntRegIndex)(uint8_t)bits(machInst, 9, 5); IntRegIndex ra = (IntRegIndex)(uint8_t)bits(machInst, 14, 10); IntRegIndex rm = (IntRegIndex)(uint8_t)bits(machInst, 20, 16); switch (bits(machInst, 23, 21)) { case 0x0: if (bits(machInst, 15) == 0) - return new Madd64(machInst, rd, ra, rn, rm); + return new Madd64(machInst, rdzr, ra, rn, rm); else - return new Msub64(machInst, rd, ra, rn, rm); + return new Msub64(machInst, rdzr, ra, rn, rm); case 0x1: if (bits(machInst, 15) == 0) - return new Smaddl64(machInst, rd, ra, rn, rm); + return new Smaddl64(machInst, rdzr, ra, rn, rm); else - return new Smsubl64(machInst, rd, ra, rn, rm); + return new Smsubl64(machInst, rdzr, ra, rn, rm); case 0x2: if (bits(machInst, 15) != 0) return new Unknown64(machInst); - return new Smulh64(machInst, rd, rn, rm); + return new Smulh64(machInst, rdzr, rn, rm); case 0x5: if (bits(machInst, 15) == 0) - return new Umaddl64(machInst, rd, ra, rn, rm); + return new Umaddl64(machInst, rdzr, ra, rn, rm); else - return new Umsubl64(machInst, rd, ra, rn, rm); + return new Umsubl64(machInst, rdzr, ra, rn, rm); case 0x6: if (bits(machInst, 15) != 0) return new Unknown64(machInst); - return new Umulh64(machInst, rd, rn, rm); + return new Umulh64(machInst, rdzr, rn, rm); default: return new Unknown64(machInst); } |