diff options
Diffstat (limited to 'src/arch/x86/isa')
| -rw-r--r-- | src/arch/x86/isa/decoder/one_byte_opcodes.isa | 20 | ||||
| -rw-r--r-- | src/arch/x86/isa/decoder/two_byte_opcodes.isa | 30 |
2 files changed, 22 insertions, 28 deletions
diff --git a/src/arch/x86/isa/decoder/one_byte_opcodes.isa b/src/arch/x86/isa/decoder/one_byte_opcodes.isa index 71d161231..4a5cf32d0 100644 --- a/src/arch/x86/isa/decoder/one_byte_opcodes.isa +++ b/src/arch/x86/isa/decoder/one_byte_opcodes.isa @@ -394,19 +394,15 @@ default: Inst::RET_FAR(); } 0x4: int3(); -#if FULL_SYSTEM - 0x5: int_Ib(); -#else - // Really only the LSB matters, but the predecoder will sign - // extend it, and there's no easy way to specify only checking - // the first byte. - 0x5: decode IMMEDIATE { - -0x80: - SyscallInst::int80('xc->syscall(Rax)', - IsSyscall, IsNonSpeculative, IsSerializeAfter); - default: int_Ib(); + 0x5: decode FULL_SYSTEM default int_Ib() { + 0: decode IMMEDIATE { + // Really only the LSB matters, but the predecoder + // will sign extend it, and there's no easy way to + // specify only checking the first byte. + -0x80: SyscallInst::int80('xc->syscall(Rax)', + IsSyscall, IsNonSpeculative, IsSerializeAfter); + } } -#endif 0x6: decode MODE_SUBMODE { 0x0: Inst::UD2(); default: into(); diff --git a/src/arch/x86/isa/decoder/two_byte_opcodes.isa b/src/arch/x86/isa/decoder/two_byte_opcodes.isa index e4df4ac66..2471b61ce 100644 --- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa +++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa @@ -216,18 +216,17 @@ default: Inst::UD2(); } } -#if FULL_SYSTEM - 0x05: decode MODE_MODE { - 0x0: decode MODE_SUBMODE { - 0x0: Inst::SYSCALL_64(); - 0x1: Inst::SYSCALL_COMPAT(); + 0x05: decode FULL_SYSTEM { + 0: SyscallInst::syscall('xc->syscall(Rax)', + IsSyscall, IsNonSpeculative, IsSerializeAfter); + default: decode MODE_MODE { + 0x0: decode MODE_SUBMODE { + 0x0: Inst::SYSCALL_64(); + 0x1: Inst::SYSCALL_COMPAT(); + } + 0x1: Inst::SYSCALL_LEGACY(); } - 0x1: Inst::SYSCALL_LEGACY(); } -#else - 0x05: SyscallInst::syscall('xc->syscall(Rax)', - IsSyscall, IsNonSpeculative, IsSerializeAfter); -#endif 0x06: Inst::CLTS(); 0x07: decode MODE_SUBMODE { 0x0: decode OPSIZE { @@ -399,12 +398,11 @@ 0x1: Inst::RDTSC(); 0x2: Inst::RDMSR(); 0x3: rdpmc(); -#if FULL_SYSTEM - 0x4: sysenter(); -#else - 0x4: SyscallInst::sysenter('xc->syscall(Rax)', - IsSyscall, IsNonSpeculative, IsSerializeAfter); -#endif + 0x4: decode FULL_SYSTEM { + 0: SyscallInst::sysenter('xc->syscall(Rax)', + IsSyscall, IsNonSpeculative, IsSerializeAfter); + default: sysenter(); + } 0x5: sysexit(); 0x6: Inst::UD2(); 0x7: getsec(); |