6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2024-11-23 03:32:32 +00:00
Code Issues Projects Releases Wiki Activity

Add EXG, EXT.

Browse Source
This commit is contained in:
Thomas Harte 2022-04-25 11:49:14 -04:00
parent 9bbd1390c1
commit e6dc2e0d31
1 changed files with 25 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
InstructionSets/68k/Decoder.cpp
View File

@ -320,6 +320,29 @@ template <uint8_t op> uint32_t Predecoder<model>::invalid_operands() {
AllModesNoAn,
Dn
>::value;
case EXGRtoR:
return ~TwoOperandMask<
Dn,
Dn
>::value;
case EXGAtoA:
return ~TwoOperandMask<
An,
An
>::value;
case EXGRtoA:
return ~TwoOperandMask<
Dn,
An
>::value;
case OpT(Operation::EXTbtow): case OpT(Operation::EXTwtol):
return ~OneOperandMask<
Dn
>::value;
}
}
@ -366,6 +389,8 @@ template <uint8_t op, bool validate> Preinstruction Predecoder<model>::validated
case OpT(Operation::EORb): case OpT(Operation::EORw): case OpT(Operation::EORl):
case EORIb: case EORIw: case EORIl:
case OpT(Operation::EORItoCCR):
case EXGRtoR: case EXGAtoA: case EXGRtoA:
case OpT(Operation::EXTbtow): case OpT(Operation::EXTwtol):
case OpT(Operation::NBCD): {
const auto invalid = invalid_operands<op>();
const auto observed = operand_mask(original);