diff options
Diffstat (limited to 'src/arch/sparc/isa/decoder.isa')
| -rw-r--r-- | src/arch/sparc/isa/decoder.isa | 52 |
1 files changed, 20 insertions, 32 deletions
diff --git a/src/arch/sparc/isa/decoder.isa b/src/arch/sparc/isa/decoder.isa index 0382aa35e..2e85e1274 100644 --- a/src/arch/sparc/isa/decoder.isa +++ b/src/arch/sparc/isa/decoder.isa @@ -1009,25 +1009,25 @@ decode OP default Unknown::unknown() 0x80: Trap::shutdown({{fault = new IllegalInstruction;}}); 0x81: FailUnimpl::siam(); } -#if FULL_SYSTEM // M5 special opcodes use the reserved IMPDEP2A opcode space 0x37: decode M5FUNC { - // we have 7 bits of space here to play with... - 0x21: m5exit({{PseudoInst::m5exit(xc->tcBase(), O0); - }}, No_OpClass, IsNonSpeculative); - 0x50: m5readfile({{ - O0 = PseudoInst::readfile(xc->tcBase(), O0, O1, O2); - }}, IsNonSpeculative); - 0x51: m5break({{PseudoInst::debugbreak(xc->tcBase()); - }}, IsNonSpeculative); - 0x54: m5panic({{ - panic("M5 panic instruction called at pc=%#x.", xc->readPC()); - }}, No_OpClass, IsNonSpeculative); - - } -#else - 0x37: Trap::impdep2({{fault = new IllegalInstruction;}}); +#if FULL_SYSTEM + format BasicOperate { + // we have 7 bits of space here to play with... + 0x21: m5exit({{PseudoInst::m5exit(xc->tcBase(), O0); + }}, No_OpClass, IsNonSpeculative); + 0x50: m5readfile({{ + O0 = PseudoInst::readfile(xc->tcBase(), O0, O1, O2); + }}, IsNonSpeculative); + 0x51: m5break({{PseudoInst::debugbreak(xc->tcBase()); + }}, IsNonSpeculative); + 0x54: m5panic({{ + panic("M5 panic instruction called at pc=%#x.", xc->readPC()); + }}, No_OpClass, IsNonSpeculative); + } #endif + default: Trap::impdep2({{fault = new IllegalInstruction;}}); + } 0x38: Branch::jmpl({{ Addr target = Rs1 + Rs2_or_imm13; if(target & 0x3) @@ -1071,27 +1071,17 @@ decode OP default Unknown::unknown() 0x0: Trap::tcci({{ if(passesCondition(Ccr<3:0>, COND2)) { -#if FULL_SYSTEM int lTrapNum = I ? (Rs1 + SW_TRAP) : (Rs1 + Rs2); DPRINTF(Sparc, "The trap number is %d\n", lTrapNum); fault = new TrapInstruction(lTrapNum); -#else - DPRINTF(Sparc, "The syscall number is %d\n", R1); - xc->syscall(R1); -#endif } }}, IsSerializeAfter, IsNonSpeculative); 0x2: Trap::tccx({{ if(passesCondition(Ccr<7:4>, COND2)) { -#if FULL_SYSTEM int lTrapNum = I ? (Rs1 + SW_TRAP) : (Rs1 + Rs2); DPRINTF(Sparc, "The trap number is %d\n", lTrapNum); fault = new TrapInstruction(lTrapNum); -#else - DPRINTF(Sparc, "The syscall number is %d\n", R1); - xc->syscall(R1); -#endif } }}, IsSerializeAfter, IsNonSpeculative); } @@ -1170,9 +1160,8 @@ decode OP default Unknown::unknown() 0x01: ldub({{Rd = Mem.ub;}}); 0x02: lduh({{Rd = Mem.uhw;}}); 0x03: ldtw({{ - uint64_t val = Mem.udw; - RdLow = val<31:0>; - RdHigh = val<63:32>; + RdLow = (Mem.tuw).a; + RdHigh = (Mem.tuw).b; }}); } format Store { @@ -1260,9 +1249,8 @@ decode OP default Unknown::unknown() {{RdLow.udw = (Mem.tudw).a; RdHigh.udw = (Mem.tudw).b;}}, {{EXT_ASI}}); default: ldtwa({{ - uint64_t val = Mem.udw; - RdLow = val<31:0>; - RdHigh = val<63:32>; + RdLow = (Mem.tuw).a; + RdHigh = (Mem.tuw).b; }}, {{EXT_ASI}}); } } |