Virgil Dupras
2be2f74a43
Make literal word routines into regular native words
2020-06-17 14:25:32 -04:00
Virgil Dupras
ea9833d4ff
Remove LITA
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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
abb4dc8bd7
Reduce the scope of the stable ABI
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Only 2>R in actually needed in the RSP family (for LOOP). Reducing
the scope of the stable ABI makes porting to other arches easier.
2020-06-17 07:54:43 -04:00
Virgil Dupras
feeedcc55c
z80: small optimization in execute
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I had more ambitious goals, but I backed out of it: not worth it.
This small optimization is an easy picking though.
2020-06-16 16:37:21 -04:00
Virgil Dupras
85a0b87da3
z80: reorder compiledWord and doesWord, saving ourselves a jump
2020-06-14 10:12:56 -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
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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
Liorst4
374932fa4d
Clean libz80/libz80.o in make clean ( #118 )
2020-06-13 15:56:28 -04:00
Virgil Dupras
f9d04848bd
emul: adjust README. AT-XY is implemented
2020-06-13 11:46:59 -04:00
Maykel Moya
7be6475ea2
Document how to launch a REPL in the host ( #117 )
2020-06-13 11:11:54 -04:00
Virgil Dupras
1871c46614
VE: add backspace support in replace mode
2020-06-11 22:29:05 -04:00
Virgil Dupras
838c88459b
Make BLK@ FLUSH only if loading a different block
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Otherwise, when editing a file with VE, we would constantly write
to disk, which is a bit inefficient.
2020-06-11 21:42:52 -04:00
Virgil Dupras
4146110e0d
Move EMPTY to core words
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It's a quite useful word and it doesn't make sense to reload it from
disk after each usage.
2020-06-11 19:04:03 -04:00
Virgil Dupras
394f962510
recipe: fix makefiles for fresh clone contexts
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All recipe makesfiles would previously assume a built emul/.
Fixes #113
2020-06-11 12:23:59 -04:00
Virgil Dupras
7cad9ffe40
LIST: simplify logic
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There wasn't much of a reason to leave a loop early on 0x0d or null.
The idea was that once you have a CR or null, the rest is garbage
and you shouldn't see it.
However, it brought a problem: In VE, you couldn't insert characters
past that limit. It would be written, but never displayed. So let's
get rid of this logic and simply always display a 64x16 grid.
2020-06-10 19:00:03 -04:00
Virgil Dupras
48f371d380
emul: add sanity check for blkfs
2020-06-08 06:47:06 -04:00
Virgil Dupras
f53f91558b
find: don't protect BC
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not needed
2020-06-03 20:57:29 -04:00
Virgil Dupras
d8a6456206
(parsed): fix crash on parsing non-decimal staring with '-'
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The address returned in the error condition would be off by one.
2020-05-25 21:15:07 -04:00
Virgil Dupras
2d17b4e8ec
Make string length-prefixed instead of null-terminated
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I'm not sure why I chose null-terminated initially. Probably because
the z80asm version had null-terminated strings.
Length-prefixes strings are the traditional form of strings in Forth
and it's a bit easier to work with them with traditional forth words
when they're under this form.
2020-05-25 20:34:52 -04:00
Virgil Dupras
6a507bcaac
Add word MOVE,
2020-05-24 19:55:00 -04:00
Virgil Dupras
2d2a846b25
Inline SCPY
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I'm planning a string reform and it's standing in the way.
2020-05-24 14:19:25 -04:00
Virgil Dupras
ed2b91411a
Limit ourselves to 8-bit branching
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I'm planning on going back to 8-bit branching. 16-bit br cells incur
a non-negligible penalty and, while at first 64 words (128 bytes
forward or backward) seemed a bit limiting, I now don't see why one
would ever construct such a big branch. It would be un-forthy.
Also, I looked at using BC instead of IY to hold IP and the transition
would be a lot easier with 8-bit branching.
In this commit, all I do is add overflow checks in IF. The mechanic
below doesn't change. I'll give myself some time to think it over so
that I avoid yet another back and forth.
2020-05-24 10:16:25 -04:00
Virgil Dupras
5bbc256faf
Flush input buffer on QUIT
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Prebiously, when encountering an error during a : ; definition from
input buffer, because the input buffer wasn't flushed, we would continue
interpreting and quit the whole program when encountering ;.
2020-05-24 09:23:19 -04:00
Virgil Dupras
02e6979a46
emul: implement AT-XY
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VI, here we come!
2020-05-23 20:15:28 -04:00
Virgil Dupras
05ca95e759
emul: make updatebootstrap two-stepped
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Writing directly to forth.bin seems to cause problems in some
environments such as Travis CI.
2020-05-23 19:35:36 -04:00
Virgil Dupras
c0b7b45570
emul: fix backspace
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it was broken in the move to ncurses.
2020-05-23 14:47:19 -04:00
Virgil Dupras
7f3e55cb51
emul: add live register stats in the corner
2020-05-23 14:42:36 -04:00
Virgil Dupras
08b0c56ff6
emul: run Collapse OS inside a limited, fixed window
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This will allow us to implement AT-XY, paving the way to all sorts
of nice new things.
2020-05-23 14:23:03 -04:00
Virgil Dupras
1d4b75add2
emul: deduplicate some code
2020-05-23 10:08:40 -04:00
Virgil Dupras
93c6d150e2
emul: don't embed forth.bin in emul binaries
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Read the contents of forth.bin at runtime. This allows us to get
rid of the bin2c tooling.
2020-05-23 09:54:26 -04:00
Virgil Dupras
8d3da4c0de
emul: stop embedding blkfs in binaries
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Instead, embed absolute path to blkfs. Having to rebuild the stage
binary at every change in blkfs is getting tedious.
2020-05-23 09:36:10 -04:00
Virgil Dupras
f884918d73
emul: use ncurses in /emul/forth
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It doesn't change anything featurewise, but this change is in
preparation for the addition of an eventual AT-XY.
2020-05-23 08:36:55 -04:00
Virgil Dupras
d041b91846
Optimize chkPS
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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
6bff03a48b
Move adev to core
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It's small enough to be worth it.
2020-05-22 14:50:34 -04:00
Virgil Dupras
bb190f9665
Add word TUCK
2020-05-22 14:19:02 -04:00
Virgil Dupras
41d439376d
Add word NIP
2020-05-22 14:19:02 -04:00
Virgil Dupras
f75b1c8864
Add word ?DUP
2020-05-22 14:19:02 -04:00
Virgil Dupras
177e70580f
sms/kbd: begin rewriting ps2ctl to Forth
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So far, the resulting binary matches.
2020-05-17 14:24:27 -04:00
Virgil Dupras
ee3407bf1c
avra: first steps
2020-05-16 09:51:02 -04:00
Virgil Dupras
ed3bee787d
emul: add a zasm.sh wrapper around stage executable
2020-05-16 07:47:47 -04:00
Virgil Dupras
863540f7c6
core: define H@ a bit sooner
2020-05-15 22:59:38 -04:00
Virgil Dupras
bd38d80f9c
Move Cross-compiled core from B390 to B350
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and renamed it "Core words". Also, reworded the presentation.
2020-05-15 22:44:49 -04:00
Virgil Dupras
b6c039589f
Don't emit BS when at beginning of input buffer
2020-05-15 20:51:09 -04:00
Virgil Dupras
1597f1e131
Don't generalize XYPOS just yet
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It was ill-advised.
2020-05-15 14:09:31 -04:00
Virgil Dupras
db9885b8cf
Rename (find) to FIND
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I hadn't noticed that this word was almost ANS compliant.
2020-05-15 12:50:14 -04:00
Virgil Dupras
175b4bc497
sms: CollapseOS prompt!
2020-05-15 12:46:25 -04:00
Virgil Dupras
ca60685067
Streamline initialization process
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Instead of letting each configuration taking care of RDLN$ and
"CollapseOS" prompt, move this to BOOT to simplify xcomp units.
Initialization source code is now only for driver initialization.
2020-05-15 11:34:35 -04:00
Virgil Dupras
0163af470a
Fix EOT behavior after QUIT
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Previously, calling quit would break EOT behavior and not properly
quit Collapse OS.
2020-05-15 10:19:39 -04:00
Virgil Dupras
43eabf566b
sms: WIP !
2020-05-14 22:15:31 -04:00