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A32: Implement Thumb-1 variant of YIELD

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Lioncash 2019-05-03 10:50:47 -04:00 committed by MerryMage
parent ebab7ede55
commit e89ca42048
3 changed files with 10 additions and 0 deletions
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1
src/frontend/A32/decoder/thumb16.h
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@ -92,6 +92,7 @@ std::optional<std::reference_wrapper<const Thumb16Matcher<V>>> DecodeThumb16(u16
INST(&V::thumb16_SEV, "SEV", "1011111101000000"), // v7
INST(&V::thumb16_WFE, "WFE", "1011111100100000"), // v7
INST(&V::thumb16_WFI, "WFI", "1011111100110000"), // v7
INST(&V::thumb16_YIELD, "YIELD", "1011111100010000"), // v7
// Miscellaneous 16-bit instructions
INST(&V::thumb16_SXTH, "SXTH", "1011001000mmmddd"), // v6

4
src/frontend/A32/disassembler/disassembler_thumb.cpp
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@ -262,6 +262,10 @@ public:
return "wfi";
}
std::string thumb16_YIELD() {
return "yield";
}
std::string thumb16_SXTH(Reg m, Reg d) {
return fmt::format("sxth {}, {}", d, m);
}

5
src/frontend/A32/translate/translate_thumb.cpp
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@ -694,6 +694,11 @@ struct ThumbTranslatorVisitor final {
return RaiseException(Exception::WaitForInterrupt);
}
// YIELD<c>
bool thumb16_YIELD() {
return RaiseException(Exception::Yield);
}
// SXTH <Rd>, <Rm>
// Rd cannot encode R15.
bool thumb16_SXTH(Reg m, Reg d) {