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Implement thumb1_MOV_reg

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This commit is contained in:
MerryMage 2016-07-10 13:10:06 +08:00
parent 8920ce79b9
commit f0f14fa5e8
3 changed files with 20 additions and 2 deletions
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4
src/frontend/decoder/thumb1.h
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@ -56,7 +56,7 @@ private:
};
template <typename V>
static const std::array<Thumb1Matcher<V>, 29> g_thumb1_instruction_table {{
static const std::array<Thumb1Matcher<V>, 30> g_thumb1_instruction_table {{
#define INST(fn, name, bitstring) detail::detail<Thumb1Matcher, u16, 16>::GetMatcher<decltype(fn), fn>(name, bitstring)
@ -94,7 +94,7 @@ static const std::array<Thumb1Matcher<V>, 29> g_thumb1_instruction_table {{
// Special data instructions
{ INST(&V::thumb1_ADD_reg_t2, "ADD (reg, T2)", "01000100Dmmmmddd") }, // v4T, Low regs: v6T2
{ INST(&V::thumb1_CMP_reg_t2, "CMP (reg, T2)", "01000101Nmmmmnnn") }, // v4T
//{ INST(&V::thumb1_MOV_high, "MOV (high)", "01000110dmmmmddd") }, // v4T, Low regs: v6
{ INST(&V::thumb1_MOV_reg, "MOV (reg)", "01000110Dmmmmddd") }, // v4T, Low regs: v6
// Store/Load single data item instructions
//{ INST(&V::thumb1_LDR_lit, "LDR (literal)", "01001dddvvvvvvvv") },

5
src/frontend/disassembler_thumb.cpp
View file

@ -217,6 +217,11 @@ public:
return Common::StringFromFormat("cmp %s, %s", RegStr(n), RegStr(m));
}
std::string thumb1_MOV_reg(bool d_hi, Reg m, Reg d_lo) {
Reg d = d_hi ? (d_lo + 8) : d_lo;
return Common::StringFromFormat("mov %s, %s", RegStr(d), RegStr(m));
}
std::string thumb1_UDF() {
return Common::StringFromFormat("udf");
}

13
src/frontend/translate_thumb.cpp
View file

@ -351,6 +351,19 @@ struct TranslatorVisitor final {
ir.SetVFlag(result.overflow);
return true;
}
bool thumb1_MOV_reg(bool d_hi, Reg m, Reg d_lo) {
Reg d = d_hi ? (d_lo + 8) : d_lo;
// MOV <Rd>, <Rm>
auto result = ir.GetRegister(m);
if (d == Reg::PC) {
ir.ALUWritePC(result);
ir.SetTerm(IR::Term::ReturnToDispatch{});
return false;
} else {
ir.SetRegister(d, result);
return true;
}
}
bool thumb1_UDF() {
return TranslateThisInstruction();