10 ms·

> 1) in get_block, we can replace "dec count" with "cpy count" It should save one or 2 cycles, if I'm not mistaken It would, but wouldn't it also set the carry

by Luc 8y ago

> 1) in get_block, we can replace "dec count" with "cpy count" It should save one or 2 cycles, if I'm not mistaken It would, but wouldn't it also set the carry flag? Thus the routine would always return with carry flag set.

tom_ 8y ago
It would, but the routine already modifies the carry flag, so no problem.
- Luc 8y ago
  It won’t work because the carry flag signals end of file. This will cause an infinite loop. Check the full source on GitHub.
  - Luc 8y ago
    (oops, now that I'm looking at the code again: it would not go into an infinite loop, but cut off after loading 1 block.)
jcmeyrignac 8y ago
You are completely right, I missed this carry. Thanks !