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collapseos
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12 Commits

Author SHA1 Message Date
Virgil Dupras b1a95648f1 De-stabilize EXIT 
This marks the end of wordrefs in stable ABI. Nice.
 2020-09-19 20:35:35 -04:00
Virgil Dupras e4a4a9800d z80: Use BC as IP register instead of IY 
It's a bit more inconvenient in terms of register protection (BC
is much more generally useful than IY), but it makes tight spots
such as next and execute much faster, so I think it's worth it.
 2020-07-06 23:31:00 -04:00
Virgil Dupras b9fb6a6226 z80: move boot code around 
Bring native words together, make the next/exec/does/compiled
cluster be at the beginning.

Next step: bring find code into _find word.
 2020-07-05 22:23:40 -04:00
Virgil Dupras 3ea221d0eb z80: inline all uses of pushRS/popRS 
I'm trying to move stuff around and it simplifies things. Will make
a lot more sense to inline when BC replaces IY.
 2020-07-05 21:54:01 -04:00
Virgil Dupras a2f880b145 z80: remove popRS from stable ABI 2020-07-05 13:44:38 -04:00
Virgil Dupras 5705cd5c31 Extract EXIT code from stable ABI zone 2020-07-05 13:41:12 -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 40f92b9bab z80: optimize chkPS 
Inline it in next and make chkPS, call a newly reserved label for
it directly, removing a layer of indirection. This frees a spot in
the stable ABI.
 2020-06-14 09:48:10 -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 503dbe9a2c Copy boot.z80 to blkfs 2020-04-22 21:19:12 -04:00