private void RewriteBit()
{
var left = RewriteOp(instr.Operands[1]);
var right = RewriteOp(instr.Operands[0]);
var tmp = binder.CreateTemporary(instr.Operands[0].Width);
var grf = binder.EnsureFlagGroup(arch.GetFlagGroup(Registers.sr, (uint)(FlagM.NF | FlagM.ZF)));
var c = binder.EnsureFlagGroup(arch.GetFlagGroup(Registers.sr, (uint)FlagM.CF));
var v = binder.EnsureFlagGroup(arch.GetFlagGroup(Registers.sr, (uint)FlagM.VF));
m.Assign(tmp, m.And(left, right));
m.Assign(grf, m.Cond(tmp));
m.Assign(c, m.Test(ConditionCode.NE, tmp));
m.Assign(v, Constant.Bool(false));
}
private void EmitCc(Expression exp, string vnzc)
{
var mask = 1u << 8;
uint grf = 0;
foreach (var c in vnzc)
{
switch (c)
{
case '*':
case 'V':
case 'N':
case 'Z':
case 'C':
grf |= mask;
break;
case '0':
m.Assign(
binder.EnsureFlagGroup(arch.GetFlagGroup(Registers.sr, mask)),
Constant.False());
break;
case '1':
m.Assign(
binder.EnsureFlagGroup(arch.GetFlagGroup(Registers.sr, mask)),
Constant.True());
break;
}
mask >>= 1;
}
if (grf != 0)
{
m.Assign(
binder.EnsureFlagGroup(arch.GetFlagGroup(Registers.sr, grf)),
m.Cond(exp));
}
}