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collapseos
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10 Commits

Author SHA1 Message Date
Virgil Dupras 7ace3032ef zasm: complete mnemonic argspecs harmonization 2020-08-15 08:11:48 -04:00
Virgil Dupras 5adbf88591 z80: move lbluflw code around 
with uflw checks not being in next anymore, we can save ourselves
a forward jump.
 2020-08-08 08:19:31 -04:00
Virgil Dupras bf4ab0f1b4 z80: protect or avoid BC wherever it's used 
For the IY->BC move, of course.
 2020-07-05 23:12:17 -04:00
Virgil Dupras 440ea43a88 z80a: make mnemonic names more uniform across assemblers 
Initially, I used the same letters as those used in the z80 ref
docs, but it makes the different assemblers harder to use than they
should. Having consistent "argtype" rules across assemblers should
help.
 2020-06-27 22:01:56 -04:00
Virgil Dupras 2d9a07d215 blkunpack: don't include trailing empty lines 
This was becoming heavy to manage.
 2020-06-23 06:52:34 -04:00
Virgil Dupras eba83fa9a9 z80: use named labels for boot routines 
The usage of numerotated labels for this was becoming severly
confusing.
 2020-06-18 07:16:40 -04:00
Virgil Dupras f6ded7712e VE: add 't' 
This is the first commit I do entirely in VE. It's a habit I'm planning
on taking as it helps a lot to find usability issues.
 2020-06-11 18:12:01 -04:00
Virgil Dupras d041b91846 Optimize chkPS 
Use EXX instead of the stack for HL protection and remove all
spurious uses of chkPS,

I wanted to inline chkPS in next because of its "tight loop" status,
but for reasons I don't understand, doing so breaks Collapse OS.
Later...
 2020-05-22 23:12:03 -04:00
Virgil Dupras da371451cc Replace INITIAL_SP with PS_ADDR conf 
Now I struggle to remember why I ever did things they way I did.
There must have been a reason...
 2020-05-11 21:08:24 -04:00
Virgil Dupras 503dbe9a2c Copy boot.z80 to blkfs 2020-04-22 21:19:12 -04:00