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| author | Andreas Kling <kling@serenityos.org> | 2020-11-13 10:37:59 +0100 |
|---|---|---|
| committer | Andreas Kling <kling@serenityos.org> | 2020-11-13 11:05:46 +0100 |
| commit | df3a70eac2f319379a1ed2d0d895ed26cfee135f (patch) | |
| tree | 8ea60e6ef1cf55a10b346909b9beab32ea60a549 | |
| parent | ae81ced21c486a16fe4c54b8b939598a600282e8 (diff) | |
| download | serenity-df3a70eac2f319379a1ed2d0d895ed26cfee135f.zip | |
UserspaceEmulator: Support FCMOVBE and FCMOVNBE
| -rw-r--r-- | DevTools/UserspaceEmulator/SoftCPU.cpp | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/DevTools/UserspaceEmulator/SoftCPU.cpp b/DevTools/UserspaceEmulator/SoftCPU.cpp index 78d9fc30ad..f75e6f191c 100644 --- a/DevTools/UserspaceEmulator/SoftCPU.cpp +++ b/DevTools/UserspaceEmulator/SoftCPU.cpp @@ -1638,7 +1638,13 @@ void SoftCPU::FIMUL_RM32(const X86::Instruction& insn) void SoftCPU::FCMOVE(const X86::Instruction&) { TODO_INSN(); } void SoftCPU::FICOM_RM32(const X86::Instruction&) { TODO_INSN(); } -void SoftCPU::FCMOVBE(const X86::Instruction&) { TODO_INSN(); } + +void SoftCPU::FCMOVBE(const X86::Instruction& insn) +{ + if (evaluate_condition(6)) + fpu_set(0, fpu_get(insn.rm() & 7)); +} + void SoftCPU::FICOMP_RM32(const X86::Instruction&) { TODO_INSN(); } void SoftCPU::FCMOVU(const X86::Instruction&) { TODO_INSN(); } void SoftCPU::FISUB_RM32(const X86::Instruction&) { TODO_INSN(); } @@ -1677,7 +1683,11 @@ void SoftCPU::FIST_RM32(const X86::Instruction& insn) insn.modrm().write32(*this, insn, shadow_wrap_as_initialized(bit_cast<u32>(i32))); } -void SoftCPU::FCMOVNBE(const X86::Instruction&) { TODO_INSN(); } +void SoftCPU::FCMOVNBE(const X86::Instruction& insn) +{ + if (evaluate_condition(7)) + fpu_set(0, fpu_get(insn.rm() & 7)); +} void SoftCPU::FISTP_RM32(const X86::Instruction& insn) { |