Open ZaneDubya opened 4 years ago
https://github.com/ZaneDubya/YCPU/blob/652601eb3a7540d5b1a610346a5b0b43469328b4/Source/Libraries/YpsilonCPU/Emulation/Processor/YCPU.BitPatterns.cs#L63
Suggested fix:
private void BitPatternBTI(ushort operand, out ushort value, out RegGeneral destination) { destination = (RegGeneral)((operand & 0xE000) >> 13); // bits DEF RegGeneral source = (RegGeneral)((operand & 0x0F00) >> 8); bool asRegister = (operand & 0x1000) != 0; value = asRegister ? (ushort)(R[(int)source] & 0x000F) : (ushort)((operand & 0x1E00) >> 9); }
(ushort)((operand & 0x1E00) >> 9); -> (ushort)((operand & 0x0F00) >> 8); (or source, not sure about the types there) Rest looks okay.
(ushort)((operand & 0x1E00) >> 9);
(ushort)((operand & 0x0F00) >> 8);
source
https://github.com/ZaneDubya/YCPU/blob/652601eb3a7540d5b1a610346a5b0b43469328b4/Source/Libraries/YpsilonCPU/Emulation/Processor/YCPU.BitPatterns.cs#L63
Suggested fix: