Virgil Dupras
9b01e16f6d
wip
2020-05-25 13:40:25 -04:00
Virgil Dupras
cc59d37658
wip
2020-05-25 13:22:26 -04:00
Virgil Dupras
a776df27d2
wip
2020-05-25 07:45:19 -04:00
Virgil Dupras
c668433c5d
wip
2020-05-25 07:29:47 -04:00
Virgil Dupras
98d23bc59b
wip
2020-05-24 23:05:05 -04:00
Virgil Dupras
6a507bcaac
Add word MOVE,
2020-05-24 19:55:00 -04:00
Virgil Dupras
2d2a846b25
Inline SCPY
...
I'm planning a string reform and it's standing in the way.
2020-05-24 14:19:25 -04:00
Virgil Dupras
a59322c252
Remove XPACK
...
Now that everything is cross-compiled, no need to XPACK. If we ever
need it again, we know where to find it.
2020-05-24 13:45:22 -04:00
Virgil Dupras
4c1cacd8d0
Remove Linker
...
Now that the boot binary is fully cross-compiled, there's no use for
the linker anymore. Theoretically, it could still be useful, but I
can't think of a real use case.
Let's take it out of the picture. If it's ever needed again, I'll
know where to find it.
2020-05-24 10:22:56 -04:00
Virgil Dupras
ed2b91411a
Limit ourselves to 8-bit branching
...
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
...
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
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
4f2c2ab80a
z80a: add a few ops
2020-05-22 22:23:24 -04:00
Virgil Dupras
581c6d015c
Fix blk overflow in usage guide index
2020-05-22 20:39:28 -04:00
Virgil Dupras
6bff03a48b
Move adev to core
...
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
ae87e88c52
Add 5x7 font
...
Also, fix PSP leak in font compilers.
2020-05-22 08:06:55 -04:00
Virgil Dupras
0939241db1
Add bootstrap guide
2020-05-21 15:25:12 -04:00
Virgil Dupras
e9e3bd80f6
ps2: fix PS2_SHIFT check
2020-05-21 08:53:36 -04:00
Virgil Dupras
7d28637740
ps2: add shift support
2020-05-20 20:31:56 -04:00
Virgil Dupras
b874a1c175
ps2: wip
2020-05-20 18:56:18 -04:00
Virgil Dupras
c86d8a74a0
sms/kbd: PS/2 driver WIP
2020-05-19 21:18:44 -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
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
8c4c879a65
avra: begin implementing forward label system
2020-05-17 11:04:08 -04:00
Virgil Dupras
212126d6d2
avra: add RJMP and RCALL
2020-05-17 10:13:43 -04:00
Virgil Dupras
b5d42924ba
avra: add arg range checks
2020-05-17 09:30:36 -04:00
Virgil Dupras
5227777b34
avra: add OPb and OPRdb instr classes
2020-05-17 08:57:23 -04:00
Virgil Dupras
2e23b84fc1
avra: simplify OPRdRr
2020-05-16 22:16:41 -04:00
Virgil Dupras
75a1b2d504
avra: add OPAb instr class
2020-05-16 21:59:07 -04:00
Virgil Dupras
322be4d576
avra: add OPNA instr class
2020-05-16 21:44:47 -04:00
Virgil Dupras
0f2d14ad8a
z80a: add BREAK, instruction
...
This allows us to remove a lot of labels usage in boot code. This
commit has no effect on forth.bin.
2020-05-16 21:02:50 -04:00
Virgil Dupras
fd597d29d2
boot: remove spurious label usage
2020-05-16 19:47:34 -04:00
Virgil Dupras
ee3407bf1c
avra: first steps
2020-05-16 09:51:02 -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
...
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
7ceff6144c
sms: implement pad button B ( next class )
2020-05-15 21:18:32 -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
aad713c477
sms: implement backspace with pad button A
2020-05-15 20:32:04 -04:00
