Commit Graph

17 Commits

Author SHA1 Message Date
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
fda9c9826e ti/lcd: add linefeed support
There's no scrolling yet...

ref #41
2019-11-07 20:53:15 -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