David Given
88fd7b3cdc
Add a 'kill' pseudoinstruction to the 8080 assembler, which marks when the code
...
generator is finished with a register; use this to create some more effective
peephole optimiser rules.
2019-03-08 23:06:34 +01:00
David Given
61d623c4d6
Add a few minor top optimisations.
2019-02-16 01:18:31 +01:00
David Given
d63a359a49
Fix nearly all the comparisons, a lot of which were broken. Using a rst for
...
unsigned comparisons is surprisingly not that useful due to marshalling
overhead; it's only four bytes to do inline (plus jc), or six for a constant.
Also add some useful top optimisations. Star Trek goes from 39890 to 39450
bytes.
2019-02-15 21:30:27 +01:00
David Given
91c75f81b5
Call cmps rather than cmpu for bge... make cmps and cmpu rsts. Apply various
...
other tiny optimisations.
2019-02-15 00:38:39 +01:00
David Given
f1b128baeb
Signed comparisons now work correctly; sadly, Star Trek increases from 39656 to
...
39726 bytes. Note that the emulator doesn't set P/V correctly and all the tests
fail. Testing in z80ex works fine.
2019-02-11 20:46:06 +01:00
David Given
7d34cd7407
Simplify simple comparisons and use inlie constants where possible. Reduces
...
Star Trek from 39771 to 39740 bytes.
2019-02-10 19:22:43 +01:00
dtrg
54ce3f451b
Configured distr system for the 6.0pre3 release.
2007-04-29 23:09:24 +00:00
