diff options
Diffstat (limited to 'ARMeilleure/Instructions/InstEmitSystem32.cs')
| -rw-r--r-- | ARMeilleure/Instructions/InstEmitSystem32.cs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/ARMeilleure/Instructions/InstEmitSystem32.cs b/ARMeilleure/Instructions/InstEmitSystem32.cs index 3e752659..674a4438 100644 --- a/ARMeilleure/Instructions/InstEmitSystem32.cs +++ b/ARMeilleure/Instructions/InstEmitSystem32.cs @@ -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; |