Virgil Dupras
3068b58be5
Rename RAMSTART to SYSVARS
...
It's more descriptive this way. Also, I'll soon add a new HERESTART
config.
2020-06-28 18:49:30 -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
dbd283758c
Refer to BOOT and (uflw) by addr in stable ABI
...
Was previously referred to by name+find, which was wasteful.
2020-06-21 11:41:10 -04:00
Virgil Dupras
035532acf7
z80: remove remaining indirections in execute calls
...
We now have a stable ABI that is pretty cleared up...
2020-06-18 07:50:20 -04:00
Virgil Dupras
42818d25be
z80: remove layers of indirection of find calls
2020-06-18 07:40:20 -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
31095bc04d
z80: remove call indirections in tight spots
2020-06-14 09:29:34 -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
