3 ms·
It's been a few years since I played around with this. I think the FMUL subroutine is broken and the actual implementation just bypasses it altogether. Perhaps
by paulgerhardt 12y ago
It's been a few years since I played around with this. I think the FMUL subroutine is broken and the actual implementation just bypasses it altogether. Perhaps someone else more intimately familiar can confirm.
- peteri 12y agoI think it's probably the bug with the log routine that you're thinking of: http://www.6502.org/source/floats/wozfp2.txt http://www.6502.org/source/floats/wozfp2.txt
- paulgerhardt 12y agoThat's it! From this thread on the 6502 forums, FADD and FSUB work without having to complement the sign bit but FMUL isn't so lucky: http://forum.6502.org/viewtopic.php?t=508 http://forum.6502.org/viewtopic.php?t=508 Nice find!