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Implement Arm32 Sha256 and MRS Rd, CPSR instructions (#3544)

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* Implement Arm32 Sha256 and MRS Rd, CPSR instructions

* Add tests using Arm64 outputs
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gdkchan 2022-08-05 14:03:50 -03:00 • committed by GitHub
parent 1080f64df9
commit 2bb9b33da1
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6 changed files with 420 additions and 179 deletions
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25
ARMeilleure/Instructions/InstEmitSystem32.cs
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@ -169,6 +169,31 @@ namespace ARMeilleure.Instructions
SetIntA32(context, op.CRn, context.ConvertI64ToI32(context.ShiftRightUI(result, Const(32))));
}
public static void Mrs(ArmEmitterContext context)
{
OpCode32Mrs op = (OpCode32Mrs)context.CurrOp;
if (op.R)
{
throw new NotImplementedException("SPSR");
}
else
{
Operand vSh = context.ShiftLeft(GetFlag(PState.VFlag), Const((int)PState.VFlag));
Operand cSh = context.ShiftLeft(GetFlag(PState.CFlag), Const((int)PState.CFlag));
Operand zSh = context.ShiftLeft(GetFlag(PState.ZFlag), Const((int)PState.ZFlag));
Operand nSh = context.ShiftLeft(GetFlag(PState.NFlag), Const((int)PState.NFlag));
Operand qSh = context.ShiftLeft(GetFlag(PState.QFlag), Const((int)PState.QFlag));
Operand spsr = context.BitwiseOr(context.BitwiseOr(nSh, zSh), context.BitwiseOr(cSh, vSh));
spsr = context.BitwiseOr(spsr, qSh);
// TODO: Remaining flags.
SetIntA32(context, op.Rd, spsr);
}
}
public static void Msr(ArmEmitterContext context)
{
OpCode32MsrReg op = (OpCode32MsrReg)context.CurrOp;