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Add ADD (zx imm12), NOP, MOV (rs), LDA, TBB, TBH, MOV (zx imm16) and CLZ thumb instructions (#3683)

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* Add ADD (zx imm12), NOP, MOV (register shifted), LDA, TBB, TBH, MOV (zx imm16) and CLZ thumb instructions, fix LDRD, STRD, CBZ, CBNZ and BLX (reg)

* Bump PPTC version
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gdkchan 2022-09-09 22:09:11 -03:00 • committed by GitHub
parent db45688aa8
commit c64524a240
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16 changed files with 185 additions and 17 deletions
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25
ARMeilleure/Instructions/InstEmitFlow32.cs
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@ -107,5 +107,30 @@ namespace ARMeilleure.Instructions
context.SetIfThenBlockState(op.IfThenBlockConds);
}
public static void Tbb(ArmEmitterContext context) => EmitTb(context, halfword: false);
public static void Tbh(ArmEmitterContext context) => EmitTb(context, halfword: true);
private static void EmitTb(ArmEmitterContext context, bool halfword)
{
OpCodeT32Tb op = (OpCodeT32Tb)context.CurrOp;
Operand halfwords;
if (halfword)
{
Operand address = context.Add(GetIntA32(context, op.Rn), context.ShiftLeft(GetIntA32(context, op.Rm), Const(1)));
halfwords = InstEmitMemoryHelper.EmitReadInt(context, address, 1);
}
else
{
Operand address = context.Add(GetIntA32(context, op.Rn), GetIntA32(context, op.Rm));
halfwords = InstEmitMemoryHelper.EmitReadIntAligned(context, address, 0);
}
Operand targetAddress = context.Add(Const((int)op.GetPc()), context.ShiftLeft(halfwords, Const(1)));
EmitVirtualJump(context, targetAddress, isReturn: false);
}
}
}