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collapseos
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269 Commits

Author SHA1 Message Date
Virgil Dupras 49d7a7f435 z80mbc2: add BLK support 2020-06-22 21:21:24 -04:00
Virgil Dupras a7660fba0e z80mbc2: new recipe 
ref #82
 2020-06-22 19:09:41 -04:00
Virgil Dupras 94ed01086a pcat: move drivers and xcomp to blkfs 2020-06-22 14:21:25 -04:00
Virgil Dupras 1bea45acb8 8086a: add PUSHs, and POPs, 2020-06-22 13:54:33 -04:00
Virgil Dupras 06d997f26a pcat: write recipe README 2020-06-22 13:34:20 -04:00
Virgil Dupras 496826cdc4 pcat: implement AT-XY 
VE works! well, at this point, we can say that Collapse OS runs on
PC/AT. A little cleanup and docs writing and we're done!
 2020-06-22 06:53:30 -04:00
Virgil Dupras f76d30b6fe pcat: add blk write support 2020-06-22 06:44:52 -04:00
Virgil Dupras 515890717f pcat: use heads count from 13H08H 
On real hardware, there aren't always 2 heads...
 2020-06-22 05:59:26 -04:00
Virgil Dupras d7f002df98 pcat: use boot drive no passed to bootloader through DL 
instead of hardcoded drive 0.
 2020-06-21 22:53:11 -04:00
Virgil Dupras dc7f36263a pcat: BLK-enabled! 
That INT 13H logic was a bit tricky to implement...

read-only for now.
 2020-06-21 22:07:12 -04:00
Virgil Dupras cd514e6cd6 pcat: add PSP checks in all native words 
Also, fix (roll) which wasn't properly implemented.
 2020-06-21 14:07:02 -04:00
Virgil Dupras dcaa515929 pcat: implement does 2020-06-21 10:40:09 -04:00
Virgil Dupras 99c05fff3c pcat: it works! 
Forth intepreter now works! There's still DOES> and overflow checks
to implement, but otherwise, we have it!
 2020-06-20 20:06:42 -04:00
Virgil Dupras 60ecab314e pcat: we have PROMPT! 
Not working, but we do get that sweet "CollapseOS".
 2020-06-20 16:58:48 -04:00
Virgil Dupras 1536434666 pcat: implement cell execution and shaping things up 2020-06-20 13:50:01 -04:00
Virgil Dupras 9d2afd200c pcat: implement (s) 2020-06-19 20:09:51 -04:00
Virgil Dupras 8cc8df0446 pcat: add native _find 2020-06-19 07:56:54 -04:00
Virgil Dupras 5ebdf84e78 pcat: more native words 
almost there!
 2020-06-19 07:26:33 -04:00
Virgil Dupras 3b21ba635d pcat: add PICK and (roll) 2020-06-18 21:21:46 -04:00
Virgil Dupras 6b07296d30 pcat: more native words 2020-06-18 19:06:53 -04:00
Virgil Dupras bd508daad9 pcat: begin organizing native words properly 
This port is taking shape!
 2020-06-18 15:28:30 -04:00
Virgil Dupras 6bc1738bfd pcat: implement (loop) 
8086 asm is a lot terser than z80... Those indirect memory operations
are very handy.
 2020-06-18 15:01:04 -04:00
Virgil Dupras bc8144b4be pcat: implement (br) and (br?) 2020-06-16 22:10:32 -04:00
Virgil Dupras a92864a595 pcat: implement RSP mechanism in execution model 2020-06-16 20:41:53 -04:00
Virgil Dupras d8d2e05eb2 pcat: make find compare strings 
find is the biggest chunk of logic of the boot code. The 8086 version
is significantly terser than the z80 one. REP/CMPS helps...
 2020-06-15 06:23:19 -04:00
Virgil Dupras 8c452f5add pcat: begin implementing find 
Not comparing strings yet. Without asm tooling support, it's a big
chunk to swallow at once. It's progressing well!
 2020-06-14 21:52:58 -04:00
Virgil Dupras a72322df31 pcat: begin structuring around words 2020-06-14 14:15:44 -04:00
Virgil Dupras 2b7abf802f pcat: begin porting forth 
I'm not sure yet where I'm going, but I'm not going to build the
8086 port from the ground up like I did with the z80, that is,
making is sustain itself and eventually merge its forth code with
core words. That would be too much work which would then be thrown
out (all those words I'll initially have to implement in asm which
are already implemented in Forth).

What I *think* I can do is build a mirror version of z80 boot code
and cross-compile it from the z80. This means it has to follow z80
stable ABI.

Nope, I'm not sure where I'm going...
 2020-06-13 21:37:54 -04:00
Virgil Dupras 07e50313c7 pcat: separate MBR code and OS code 
MBR code now strictly loads OS code into memory and jumps into it.

Now, I've got to consolidate my assembler code, modrm logic is
messed up.
 2020-06-13 15:35:16 -04:00
Virgil Dupras 177750c928 recipes/pcat: first steps into 8086! 2020-06-12 14:03:31 -04:00
Virgil Dupras 394f962510 recipe: fix makefiles for fresh clone contexts 
All recipe makesfiles would previously assume a built emul/.

Fixes #113
 2020-06-11 12:23:59 -04:00
Virgil Dupras b2b556911f trs80: implement AT-XY 
Also, I've run VE on the TRS-80 for the first time! It doesn't work
well though. Screen is mostly blank all the time.

I removed instructions from the recipe which became obsolete when
Collapse OS became 100% bootstrapped. Also, I've updated instructions
to change the NL override which is necessary for blkup to work.
 2020-06-07 11:14:57 -04:00
Virgil Dupras a2136e604d rc2014/eeprom: adjust instructions 
Now that adev is directly in core, things are easier.
 2020-05-22 20:35:01 -04:00
Virgil Dupras 986249cf5e rc2014: fix misinformation in README 2020-05-22 14:19:02 -04:00
Virgil Dupras b5683f447b sms/kbd: update instructions for Forth Collapse OS 
The keyboard is a bit glitchy, but these are the same glitch as those
that were already present in Z80 Collapse OS. They still need fixing...
 2020-05-21 13:57:34 -04:00
Virgil Dupras b06cf09754 rc2014/ps2: update recipe to Forth's Collapse OS 2020-05-21 09:09:13 -04:00
Virgil Dupras aad6b5c2e5 avra: add global constants 2020-05-19 10:48:48 -04:00
Virgil Dupras ac309bbd9e avra: rename AGAIN, to AGAIN?, 
AGAIN, becomes a shortcut for "' RJMP AGAIN?,"
 2020-05-19 10:36:07 -04:00
Virgil Dupras 7a41c5c6f9 avra: add IF, .. THEN, 
I decided to keep SKIP, .. TO, (renamed from AT,) around and limit
IF, .. THEN, to the simple BRNE case.
 2020-05-19 10:26:57 -04:00
Virgil Dupras 8bbd29d37d avra: add SKIP, .. AT, 
Will change to IF, .. THEN, but I need a way to easily reverse a
BR op. But from this commit, the translation of sms/kbd/ps2ctl.asm
is complete! perfect binary match!
 2020-05-19 10:19:37 -04:00
Virgil Dupras 8ca85abfbd avra: add BEGIN, .. AGAIN, 2020-05-19 07:39:34 -04:00
Virgil Dupras 7b7e60ed4a avra: implement LD/ST 
Still making great progress on sms/kbd/ps2ctl. Still matching ref
binary.
 2020-05-18 22:28:58 -04:00
Virgil Dupras 6a55a04f22 sms/kbd: still advancing on ps2ctl 
next step: implement ST.
 2020-05-18 20:55:10 -04:00
Virgil Dupras e0bc14e55c avra: implement BR* 
Getting good! still advancing on ps2ctl in sms/kbd and still
matching reference binary.
 2020-05-18 20:34:06 -04:00
Virgil Dupras cdddfdefae avra: add a layer of indirection to FLBL! 
This will make it easier to fit BR* in there.
 2020-05-18 19:45:30 -04:00
Virgil Dupras 63dec372ce sms/kbd: continue advancing on ps2ctl rewrite 
Still binary matching. Next step is branching support.
 2020-05-17 21:10:02 -04:00
Virgil Dupras 177e70580f sms/kbd: begin rewriting ps2ctl to Forth 
So far, the resulting binary matches.
 2020-05-17 14:24:27 -04:00
Virgil Dupras bd38d80f9c Move Cross-compiled core from B390 to B350 
and renamed it "Core words". Also, reworded the presentation.
 2020-05-15 22:44:49 -04:00
Virgil Dupras f2817870aa sms: working on real hardware! 2020-05-15 21:53:26 -04:00
Virgil Dupras ebc70be8e8 ti84: use dd instead of truncate 
More portable
 2020-05-15 17:25:58 -04:00