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Commit Graph

1674 Commits

Author SHA1 Message Date
Virgil Dupras
f89e7bd503 forth: add words "C@" and "C!" 2020-03-11 22:11:54 -04:00
Virgil Dupras
80f63cd185 forth: add words "2DUP", "2SWAP", "2OVER" 2020-03-11 21:58:16 -04:00
Virgil Dupras
d8542f7cf7 forth: fix "NOT"
Ouh, I need a solution here...
2020-03-11 19:59:10 -04:00
Virgil Dupras
ea5f33558a forth: make branching offsets 1 byte
Those bytes, those precious bytes!
2020-03-11 19:52:49 -04:00
Virgil Dupras
abdf2c8adc emul/forth: allow running commands from file 2020-03-11 19:03:47 -04:00
Virgil Dupras
3996f0c825 forth: fix IF/THEN/ELSE in colon defs 2020-03-11 17:53:27 -04:00
Virgil Dupras
02b56c547a forth: make branching cells store relative offsets
This should help with fixing IF/THEN/ELSE in colon defs.
2020-03-11 16:46:25 -04:00
Virgil Dupras
6757c097ea forth: change the whole execution model again
Things are better now, but immediates inside colons are broken. However,
IF/THEN/ELSE are now immediates and it's much cleaner this way. Still, this
commit has too much stuff in it, I need to commit, I don't want to lose this
step.
2020-03-10 21:37:06 -04:00
Virgil Dupras
2ddca57f3f forth: add string and logic routines, as well as "RECURSE"
The goal was to be able to implement "(" in forth, but I realised that my
INTERPRET approach was wrong. Compiling the line beforehand is, after all,
not good. I'll have to change it again.
2020-03-10 16:02:40 -04:00
Virgil Dupras
aac0a57a68 forth: add words "PC!" and "PC@" 2020-03-10 13:00:57 -04:00
Virgil Dupras
e95614755b emul: add forth target 2020-03-09 22:26:02 -04:00
Virgil Dupras
0b3f6253e4 forth: add support for IMMEDIATE words 2020-03-09 22:13:11 -04:00
Virgil Dupras
03bd9ee39b forth: make readCompWord read from RS' BOS instead of TOS
Previous approach was broken with regards to defined word using CREATE.

Also, reduce name length by one to make space for a new flags field for
"immediate" (which isn't used yet).
2020-03-09 19:50:51 -04:00
Virgil Dupras
0e8af3cea4 forth: clarify the meaning of "wordref"
Also, make entry labels in dict.asm be wordref instead of entry ref.
2020-03-09 15:12:44 -04:00
Virgil Dupras
e8a4768304 forth: add words "IF", "ELSE", "THEN" 2020-03-09 14:19:51 -04:00
Virgil Dupras
03e529b762 forth: simplify execution model and handle literals better
This scheme of "when we handle line-by-line, compile one word at a time then
execute" so that we could allow words like "CREATE" to call "readword" before
continuing was a bad scheme. It made things like branching outside of a colon
definition impossible.

This commit implement a new "litWord". When an undefined word is encountered at
compile time, it is included as-is in a string literal word. It is at run time
that we decide what to do with it.
2020-03-09 14:14:26 -04:00
Virgil Dupras
5cadde557c forth: add "VARIABLE" 2020-03-07 22:23:08 -05:00
Virgil Dupras
989d8bbabf forth: add "DOES>" and "CONSTANT" 2020-03-07 22:18:14 -05:00
Virgil Dupras
53024d88f5 forth: add "DUP", "OVER", "SWAP", "?", "+!", "ALLOT" 2020-03-07 21:12:30 -05:00
Virgil Dupras
f0cf10ab7c forth: Check for PS underflow 2020-03-07 20:20:11 -05:00
Virgil Dupras
580214426a forth: add +-*/ 2020-03-07 19:42:07 -05:00
Virgil Dupras
ad2aca4620 forth: add number literals support 2020-03-07 19:25:55 -05:00
Virgil Dupras
30f188b984 forth: add word ":" 2020-03-07 18:54:16 -05:00
Virgil Dupras
e7cd3182d0 forth: add words "CREATE", "@", "!", "HERE", "QUIT" 2020-03-07 17:09:45 -05:00
Virgil Dupras
6f9d28b325 forth: add word "bye"
And make interpret action looping until BYE.
2020-03-07 13:15:19 -05:00
Virgil Dupras
391ddb9984 forth: add word "." 2020-03-07 12:50:54 -05:00
Virgil Dupras
49228e418c apps/forth: new (WIP) application 2020-03-07 12:13:15 -05:00
Virgil Dupras
97dcad9b15 recipes/sms/kbd: use Collapse OS' AVR assembler 2020-02-26 23:10:43 -05:00
Virgil Dupras
64a54c72f8 Fix broken recipes 2020-02-26 21:44:37 -05:00
Virgil Dupras
92ddc7ebc1 recipes/trs80: use grid module
Not much of a gain in terms of usability (a bit of a loss in fact, things are
a bit slow and glitchy), but it's a necessary move if we want to use upcoming
grid-enabled userspace apps, such as a visual text editor.
2020-02-26 16:27:27 -05:00
Virgil Dupras
a442c46935 sms/vdp: highlight cursor with inverted palette 2020-02-26 09:43:50 -05:00
Virgil Dupras
247b200dcc New kernel module: grid 2020-02-24 20:36:08 -05:00
Virgil Dupras
434c8d5c0d recipes/trs80: add ed 2020-02-23 20:52:44 -05:00
Virgil Dupras
6224ea2fe9 zasm: use printcrlf instead of hardcoded CRLF 2020-02-23 18:52:25 -05:00
Virgil Dupras
c3213e1e8c recipes/trs80: can now run zasm! 2020-02-23 14:51:19 -05:00
Virgil Dupras
2860a10f71 recipes/trs80: add CFS support 2020-02-22 20:06:59 -05:00
Virgil Dupras
ec6df3087d recipes/trs80: add "recv" command
This allows us to write contents from RS-232 directly to floppy! it works!
2020-02-22 14:43:07 -05:00
Virgil Dupras
049f2cf222 Reverse ttysafe escaping order
Sending the escape after its target made things complicated for upcoming
stuff I want to add. Although it makes `recv.asm` slightly larger, it's really
worth it.
2020-02-22 14:11:43 -05:00
Virgil Dupras
69f0c6dafd trs80/floppy: implement write 2020-02-22 12:09:43 -05:00
Virgil Dupras
438c71ad3d trs80/floppy: new module
Read-only support for now, hardcoded on drive :1. But it seems to work.

Can't wait to get a CFS running on this!
2020-02-21 19:30:57 -05:00
Virgil Dupras
08328b86a9 doc: add reverse engineering notes for trs80-4p 2020-02-21 10:39:51 -05:00
Virgil Dupras
bd38d46892 recipes/trs80: fix double line feeds
Lines should be terminated only with a CR on this system, not CRLF.
2020-02-21 08:40:42 -05:00
Virgil Dupras
0f2b3aca24 zasm: allow zasm to omit its 3rd argument
A bug in rdWS made zasm error out when omiting its 3rd argument.

fixes #90
2020-02-18 15:46:55 -05:00
Virgil Dupras
9515d63d47 recipes/trs80: Collapse OS runs on the TRS-80 Model 4P! 2020-02-12 11:23:49 -05:00
Virgil Dupras
c5116b39ae Fix tools Makefile for GNU make
It seems that my little "@.c" trick only worked in BSD make...
2020-02-12 10:12:46 -05:00
Virgil Dupras
bab18216aa recipes/trs80: add instructions to save recv program to floppy 2020-02-10 11:25:05 -05:00
Virgil Dupras
9d8aa3a0d0 Add TRS-80 model 4P hardware doc
It's a condensed version of the technical manual that can be a bit
more practical to use for quick referencing.
2020-01-25 14:44:30 -05:00
Virgil Dupras
a74ee81822 recipes/trs80: new recipe (WIP) 2020-01-11 23:01:28 -05:00
Virgil Dupras
e1e0676191 emul/hw/sms: add A/B ports and a Genesis pad
This makes the emulator suitable to run the base SMS recipe.
2020-01-10 21:20:44 -05:00
Virgil Dupras
b60252e330 emul/hw/(ti|sms): detect window being closed
Previously, it would never get out of the event loop.
2020-01-10 16:59:48 -05:00