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Author SHA1 Message Date
Virgil Dupras
8d46895dd3 lib/parse: decimal ending with a whitespace are now valid 
Also, make empty strings be parsed as invalid by parseDecimal.
 2019-11-13 22:10:06 -05:00
Virgil Dupras
7274dccbe7 Move ASCII consts to ascii.h 
And made them shorter in name. The new ascii.h file allow reuse in userspace
code.
 2019-11-13 20:38:06 -05:00
Virgil Dupras
7046d23cd6 Fix broken IRC link in README 2019-11-13 20:27:09 -05:00
Sarala Saraswati
0f65890074 add link to freenode irc channel and sonic.net hosted listserv (#75) 2019-11-13 20:17:21 -05:00
Virgil Dupras
f3992ed598 basic: begin an implementation from sratch 
Let's see where it will lead us...
 2019-11-13 15:28:16 -05:00
Virgil Dupras
1ae51bea3a tests: remove instr blacklist 
Because scas isn't used as a reference anymore, no need to blacklist its bugs
anymore.
 2019-11-12 20:47:09 -05:00
Virgil Dupras
39f3637c60 recipes/ti84: TI-84+ base recipe is complete! 
ref #41
 2019-11-12 20:32:56 -05:00
Virgil Dupras
0e9173a89a zasm: optimize handleRST a little bit 2019-11-12 19:45:56 -05:00
Virgil Dupras
4de2ce3ceb zasm: add RST instruction 2019-11-12 14:07:45 -05:00
Virgil Dupras
518df7a05e zasm: add poor man's indexing in instr table 
There's a lot of looping through that table. At first, I wanted to add some
bisecting, but 16-bit additions and multiplications involved made the idea a
bit less appealing. I went with a very basic, hardcoded index which should
speed things quite a bit at a minimal complexity cost.
 2019-11-11 20:59:26 -05:00
Virgil Dupras
cbc6fb5931 zasm: clean up jump table requirements 
There was a little bit of cruft.
 2019-11-11 20:21:13 -05:00
Virgil Dupras
17cc28e211 recipes/ti84: use a 3x5 font instead of a 5x7 one 
This allow a lot more characters to fit on that tiny screen...

ref #41
 2019-11-11 13:26:24 -05:00
Sarala Saraswati
cb1e68e3e2 add link to subreddit (#71) 2019-11-11 06:28:41 -05:00
Virgil Dupras
30d6fdb16b ti/lcd: use brand new support for IX in SRL and RR 2019-11-10 22:07:44 -05:00
Virgil Dupras
2bff486cd2 Update bootstrap binaries 2019-11-10 22:03:46 -05:00
Virgil Dupras
5f6b303e75 zasm: add IX/IY support to SRL, RR and RL 2019-11-10 22:03:18 -05:00
Virgil Dupras
506c3d0a96 zasm: generalize handling of IX/IY in 0xcb upcode family 
There's a couple of bit fiddling instructions that didn't have their
IX/IY variant implemented yet and without this commit, each of them
would have required a special routine. Not anymore.
 2019-11-10 21:02:18 -05:00
Virgil Dupras
d9d6093287 zasm: simplify (IX/Y+d) handling 
We now require less special handling.
 2019-11-10 20:16:50 -05:00
Virgil Dupras
68ef686c3c zasm: fix 16-bit include lineno counting 
It was actually counted in 8-bit mode...
 2019-11-10 13:50:26 -05:00
Virgil Dupras
999ab56366 zasm: add generic handling of BIT argument 
This reduces the need for special handling routine and will make my
life easier in my upcoming generic tratment of IX/IY prefix in upcodes
 2019-11-10 10:24:36 -05:00
Virgil Dupras
553b346b92 zasm: getUpcode -> spitUpcode 
Giving I/O responsibility to spitUpcode gives us wiggle room for
upcoming refactorings.
 2019-11-10 09:28:10 -05:00
Virgil Dupras
c4658591bd ti/lcd: allow for fonts smaller than 5 pixels 
That's a lot of code for such a small change, but there's a big difference
between 5 pixels and 4 pixels: 4 pixels requires compositing.
 2019-11-09 22:55:15 -05:00
Virgil Dupras
6d9f96aee6 ti/lcd: add support for backspace 
Also, fix visual glitch on line wrap.
 2019-11-09 14:37:52 -05:00
Virgil Dupras
a4190f9984 recipes/ti84: document usage 
ref #41
 2019-11-09 14:20:01 -05:00
Virgil Dupras
2026113480 ti/kbd: lowercase letters by default, 2nd to upcase 2019-11-09 13:38:35 -05:00
Virgil Dupras
9c37471780 ti/kbd: improve debouncing 
Previously, on real hardware (emulator behaved fine), we would routinely
get repeat keys unless pressing the button very fast. This commit solves that.
 2019-11-09 13:22:01 -05:00
Virgil Dupras
418af5f626 ti/kbd: make Alpha and 2nd toggle 
Previously, when being in A-Lock mode, activating Alpha wouldn't make
us go temporarily in digit mode, as is expected.
 2019-11-09 13:12:36 -05:00
Virgil Dupras
67f689260f ti/lcd: Add scrolling through z-offset 2019-11-09 08:25:10 -05:00
Virgil Dupras
6a70a0e5e6 ti/lcd: wrap rows on overflow 2019-11-09 08:09:01 -05:00
Virgil Dupras
b27a71cb88 ti/kbd: fix space character 2019-11-09 08:01:03 -05:00
Virgil Dupras
6c1b1f2b79 ti/lcd: wrap to next line when overflowing 2019-11-08 22:55:56 -05:00
Virgil Dupras
bb2e528b65 ti/lcd: clear screen on init 
LCD RAM persists between reboots, makingit necessary to clear it.

ref #41
 2019-11-08 21:54:03 -05:00
Virgil Dupras
c896b77143 ti/kbd: implement A-Lock 
ref #41
 2019-11-08 20:27:43 -05:00
Virgil Dupras
8d5c26f299 ti/kbd: add alpha support 
no a-lock or lowercase yet.

ref #41
 2019-11-08 15:45:45 -05:00
Virgil Dupras
ca8b315e9d ti/kbd: widen char detection 
no alpha yet.

ref #41
 2019-11-08 14:58:29 -05:00
Virgil Dupras
dca6ce4e8e ti/kbd: begin GetC implementation 
For now, only digits are scanned. Lifted from my "tiseg7" example.

ref #41
 2019-11-08 14:04:56 -05:00
Virgil Dupras
6a4bddc493 ti/lcd: ensure that variables are initialized 2019-11-08 11:45:37 -05:00
Virgil Dupras
a3c47f6272 Add tests for parseArgs 2019-11-08 10:53:52 -05:00
Virgil Dupras
e972dfe220 Add test documentation 2019-11-08 10:37:52 -05:00
Virgil Dupras
c57f2d6973 fonts/5x7: add lowercase letters 2019-11-07 22:27:12 -05:00
Virgil Dupras
fda9c9826e ti/lcd: add linefeed support 
There's no scrolling yet...

ref #41
 2019-11-07 20:53:15 -05:00
Virgil Dupras
f4871d4d58 recipes/ti84: add upload instructions 
ref #41
 2019-11-07 13:42:40 -05:00
Virgil Dupras
a13a94bbc7 fix typos 2019-11-07 12:13:00 -05:00
Virgil Dupras
ca84b5dac8 recipes/ti84: first step 
This was mostly lifted from my "tihello" example, but it required significant
adjustments.

This commit also introduces a font management system. A lot of fonts are
available online, but sources aren't always clear so to avoid copyright
landmines, I re-created my first 5x7 font from scratch.

As it is now, this resulting ROM gets "Collapse OS>" to be displayed on the
LCD screen. Much work still left to do.

ref #41
 2019-11-07 11:52:29 -05:00
Virgil Dupras
69daf49920 doc: fix mis-wording 2019-11-05 17:59:29 -05:00
Virgil Dupras
6396eb4a9e tricks: add endianness notes 2019-11-04 16:49:53 -05:00
Virgil Dupras
9344c4b961 doc: minor improvements 2019-11-04 14:45:10 -05:00
Virgil Dupras
3ef964e74d acia: make GetC blocking 2019-11-04 14:44:43 -05:00
Virgil Dupras
f395297874 Improve python tools' shebang 
Most OS don't have python3 in /usr/bin/python...
 2019-11-04 14:43:27 -05:00
Virgil Dupras
41338a4b23 stdio: add "Accepted characters" comment section 
ref #64
 2019-11-04 10:12:17 -05:00