7 ms·
> (The above routine is based on some code I found on a Commodore-64-related web page, which, unfortunately, I haven't been able locate again. The method doesn'
by diydsp 4y ago
> (The above routine is based on some code I found on a Commodore-64-related web page, which, unfortunately, I haven't been able locate again. The method doesn't seem to have been widely known among Apple II programmers.)
Here's one possible source from an excellent website that includes many more 6502 algorithms!
https://codebase64.org/doku.php?id=base:6502_6510_maths https://codebase64.org/doku.php?id=base:6502_6510_maths
- djmips 4y agoMy contribution there. :) https://codebase64.org/doku.php?id=base:8bit_multiplication_16bit_product_fast_no_tables https://codebase64.org/doku.php?id=base:8bit_multiplication_...