izaya
/
collapseos
mirror of https://github.com/hsoft/collapseos.git
1
0
Fork 0
Code Issues Releases Wiki Activity
1,486 Commits 4 Branches 0 Tags 10 MiB
Commit Graph

21 Commits

Author SHA1 Message Date
Virgil Dupras c4db9d4420 8086: implement stack overflow error condition 
Also, remove RSP underflow check from next for the same reason as
in the previous commit in z80.
 2020-08-08 10:18:43 -04:00
Virgil Dupras f2f520cacc Extract (br), (?br) and (loop)'s code out of stable ABI zone 
There is now no more actual code in stable ABI, only references.
This makes refactoring of this code much easier. For example,
changing IY to BC as the IP register.
 2020-07-05 14:57:18 -04:00
Virgil Dupras daeb3b3c69 Extract (n) code from stable ABI 2020-07-05 14:16:24 -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 84202da6a6 z80: prettify 2020-07-05 13:15:26 -04:00
Virgil Dupras 4a91ee5c9c Extract (s) code from stable ABI zone 
Only its jump addr remains.
 2020-07-05 08:54:22 -04:00
Virgil Dupras b626944273 z80: move back R* words to native words section 
This allows us to refer to pushRS/popRS routines by labels, allowing
us to get rid of the pushRS reference in the stable ABI zone.
 2020-07-05 08:15:50 -04:00
Virgil Dupras 650481f849 z80/8086: extract 2>R code from stable ABI zone 
Only its jump at 0x33 remains.

I've also fixed a strange offset oddity in 8086's (n) placement.
It was off by 2, but strangely, it ran properly. Anyway, now it's
fixed.
 2020-07-05 08:03:15 -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 3d2dc041fb Make word routines into word types 
Instead of having wordref point to core word routines, I made them
into word 4 word types. It liberates space into the stable ABI and
should make porting to other arches easier.

I'm also thinking of combining word type with the namelen field
for precious bytes saving, but not now...
 2020-06-17 21:41:01 -04:00
Virgil Dupras 2be2f74a43 Make literal word routines into regular native words 2020-06-17 14:25:32 -04:00
Virgil Dupras ea9833d4ff Remove LITA 
It was useful when we still had the relinker, but now it has no use.
I was waiting a bit to see if the distinction would be useful again,
but it seems like it won't.
 2020-06-17 13:50:42 -04:00
Virgil Dupras 38d5a9f303 z80: inline cellWord in stable ABI 2020-06-14 10:07:46 -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 3fbae082f4 Remove INTJUMP mechanism 
Not worth the trouble. Easier to set jump in binary directly.
 2020-05-14 15:13:16 -04:00
Virgil Dupras 503dbe9a2c Copy boot.z80 to blkfs 2020-04-22 21:19:12 -04:00