Fast486ExtOpcodeConditionalJmp,
Fast486ExtOpcodeConditionalJmp,
Fast486ExtOpcodeConditionalJmp,
- NULL, // TODO: OPCODE 0x90 NOT IMPLEMENTED
- NULL, // TODO: OPCODE 0x91 NOT IMPLEMENTED
- NULL, // TODO: OPCODE 0x92 NOT IMPLEMENTED
- NULL, // TODO: OPCODE 0x93 NOT IMPLEMENTED
- NULL, // TODO: OPCODE 0x94 NOT IMPLEMENTED
- NULL, // TODO: OPCODE 0x95 NOT IMPLEMENTED
- NULL, // TODO: OPCODE 0x96 NOT IMPLEMENTED
- NULL, // TODO: OPCODE 0x97 NOT IMPLEMENTED
- NULL, // TODO: OPCODE 0x98 NOT IMPLEMENTED
- NULL, // TODO: OPCODE 0x99 NOT IMPLEMENTED
- NULL, // TODO: OPCODE 0x9A NOT IMPLEMENTED
- NULL, // TODO: OPCODE 0x9B NOT IMPLEMENTED
- NULL, // TODO: OPCODE 0x9C NOT IMPLEMENTED
- NULL, // TODO: OPCODE 0x9D NOT IMPLEMENTED
- NULL, // TODO: OPCODE 0x9E NOT IMPLEMENTED
- NULL, // TODO: OPCODE 0x9F NOT IMPLEMENTED
+ Fast486ExtOpcodeConditionalSet,
+ Fast486ExtOpcodeConditionalSet,
+ Fast486ExtOpcodeConditionalSet,
+ Fast486ExtOpcodeConditionalSet,
+ Fast486ExtOpcodeConditionalSet,
+ Fast486ExtOpcodeConditionalSet,
+ Fast486ExtOpcodeConditionalSet,
+ Fast486ExtOpcodeConditionalSet,
+ Fast486ExtOpcodeConditionalSet,
+ Fast486ExtOpcodeConditionalSet,
+ Fast486ExtOpcodeConditionalSet,
+ Fast486ExtOpcodeConditionalSet,
+ Fast486ExtOpcodeConditionalSet,
+ Fast486ExtOpcodeConditionalSet,
+ Fast486ExtOpcodeConditionalSet,
+ Fast486ExtOpcodeConditionalSet,
NULL, // TODO: OPCODE 0xA0 NOT IMPLEMENTED
NULL, // TODO: OPCODE 0xA1 NOT IMPLEMENTED
NULL, // Invalid
return TRUE;
}
+FAST486_OPCODE_HANDLER(Fast486ExtOpcodeConditionalSet)
+{
+ BOOLEAN Value = FALSE;
+ BOOLEAN AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
+ FAST486_MOD_REG_RM ModRegRm;
+
+ if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
+ {
+ /* The OPSIZE prefix toggles the size */
+ AddressSize = !AddressSize;
+ }
+
+ /* Get the operands */
+ if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
+ {
+ /* Exception occurred */
+ return FALSE;
+ }
+
+ /* Make sure this is the right instruction */
+ ASSERT((Opcode & 0xF0) == 0x90);
+
+ switch ((Opcode & 0x0F) >> 1)
+ {
+ /* SETO / SETNO */
+ case 0:
+ {
+ Value = State->Flags.Of;
+ break;
+ }
+
+ /* SETC / SETNC */
+ case 1:
+ {
+ Value = State->Flags.Cf;
+ break;
+ }
+
+ /* SETZ / SETNZ */
+ case 2:
+ {
+ Value = State->Flags.Zf;
+ break;
+ }
+
+ /* SETBE / SETNBE */
+ case 3:
+ {
+ Value = State->Flags.Cf || State->Flags.Zf;
+ break;
+ }
+
+ /* SETS / SETNS */
+ case 4:
+ {
+ Value = State->Flags.Sf;
+ break;
+ }
+
+ /* SETP / SETNP */
+ case 5:
+ {
+ Value = State->Flags.Pf;
+ break;
+ }
+
+ /* SETL / SETNL */
+ case 6:
+ {
+ Value = State->Flags.Sf != State->Flags.Of;
+ break;
+ }
+
+ /* SETLE / SETNLE */
+ case 7:
+ {
+ Value = (State->Flags.Sf != State->Flags.Of) || State->Flags.Zf;
+ break;
+ }
+ }
+
+ if (Opcode & 1)
+ {
+ /* Invert the result */
+ Value = !Value;
+ }
+
+ /* Write back the result */
+ return Fast486WriteModrmByteOperands(State, &ModRegRm, FALSE, Value);
+}
FAST486_OPCODE_HANDLER(Fast486OpcodeExtended)
{