 Paul Gardner-Stephen
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4495d22a10
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add temp_string_ptr address
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2019-04-22 20:53:21 +09:30 |
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Paul Gardner-Stephen
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7b0d2fa213
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fix rule to pull out kernal from combined ROM
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2019-04-22 20:52:59 +09:30 |
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Paul Gardner-Stephen
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c8db5e52c6
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add place holder routine to skip the $C000-$DFFF gap in the BASIC ROM space.
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2019-04-22 15:39:47 +09:30 |
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Paul Gardner-Stephen
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97eb5acb31
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begin implementing BASIC interprettor.
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2019-04-22 15:36:00 +09:30 |
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Paul Gardner-Stephen
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2f09f2c9a3
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Issue #2 solved: STOP routine return values determined by trial and error
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2019-04-22 15:12:44 +09:30 |
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Paul Gardner-Stephen
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7c31bca28e
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document authority for IRQ entry and exit sequence
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2019-04-22 13:56:35 +09:30 |
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Paul Gardner-Stephen
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2fd27915f7
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don't print strange control characters. Part solution to Issue #2.
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2019-04-22 13:51:55 +09:30 |
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Paul Gardner-Stephen
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5292ea009b
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Fix enabling/disabling of cursor. Issue #1
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2019-04-22 12:55:36 +09:30 |
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Paul Gardner-Stephen
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13a7aee1d2
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enable and disable cursor when reading a line of keyboard input via chrin
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2019-04-22 12:37:27 +09:30 |
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Paul Gardner-Stephen
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296fdcfd7a
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fix char under cursor draw/undraw bug
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2019-04-22 12:31:45 +09:30 |
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Paul Gardner-Stephen
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b257ac8234
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begin implementing stop routine
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2019-04-22 12:09:03 +09:30 |
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Paul Gardner-Stephen
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f858ab6ac4
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fix glitching when shortening a full-length line using DELETE
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2019-04-22 11:49:34 +09:30 |
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Paul Gardner-Stephen
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57b2c69c1d
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implement shift-DELETE to insert characters
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2019-04-22 11:42:13 +09:30 |
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Paul Gardner-Stephen
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2cade1508f
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fix decoding of shifted and vendor shifted input. BASIC keyword short cuts now work.
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2019-04-22 03:50:53 +09:30 |
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Paul Gardner-Stephen
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0652c536cd
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fix error for encoding )
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2019-04-22 03:50:46 +09:30 |
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Paul Gardner-Stephen
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d8f4acf7e1
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remove debug border flash
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2019-04-22 03:36:01 +09:30 |
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Paul Gardner-Stephen
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374815ed68
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fix preserving X register in CHRIN
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2019-04-22 03:33:52 +09:30 |
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Paul Gardner-Stephen
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836f19e834
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correct length measurement of input line for CHRIN
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2019-04-22 03:04:15 +09:30 |
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Paul Gardner-Stephen
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89f7f9ae55
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preserve X register in chrin
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2019-04-22 02:59:44 +09:30 |
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Paul Gardner-Stephen
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3067744304
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partial implementation of CHRIN
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2019-04-22 02:49:32 +09:30 |
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Paul Gardner-Stephen
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f62a541d83
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add placeholder license
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2019-04-22 02:49:24 +09:30 |
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Paul Gardner-Stephen
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028d82fc11
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work towards chrin returning a line of input
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2019-04-22 02:17:57 +09:30 |
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Paul Gardner-Stephen
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83c6a669d6
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implement quote and insert mode flag handling.
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2019-04-22 01:51:51 +09:30 |
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Paul Gardner-Stephen
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9996697f5e
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add sources for reverse video control
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2019-04-22 01:38:24 +09:30 |
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Paul Gardner-Stephen
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a458fb0b58
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implement reverse video flag
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2019-04-22 01:37:02 +09:30 |
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Paul Gardner-Stephen
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6dad8d491b
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fix printing of shifted and vendor modified keys.
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2019-04-22 01:35:02 +09:30 |
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Paul Gardner-Stephen
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dd2200965d
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fix scrolling of screen when on expanded last line
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2019-04-22 01:22:14 +09:30 |
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Paul Gardner-Stephen
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e1490c1ded
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work towards fixing bug with no scrolling when last line is double-length
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2019-04-22 00:59:54 +09:30 |
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Paul Gardner-Stephen
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eed50e63f4
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fix bug when expanding last line on screen
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2019-04-22 00:39:29 +09:30 |
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Paul Gardner-Stephen
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a803ca6268
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fix extending lines
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2019-04-22 00:36:55 +09:30 |
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Paul Gardner-Stephen
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933bcac978
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fix screen scrolling bugs
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2019-04-22 00:10:26 +09:30 |
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Paul Gardner-Stephen
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d18d8c30c3
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clear line link flag for last line when scrolling screen up
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2019-04-21 23:44:14 +09:30 |
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Paul Gardner-Stephen
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c29b8c6fc7
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implement scrolling screen up when pressing cursor down at bottom of screen.
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2019-04-21 23:35:58 +09:30 |
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Paul Gardner-Stephen
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b6f6570951
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fix bug in growing line when last line on screen
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2019-04-21 23:15:44 +09:30 |
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Paul Gardner-Stephen
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2a212678c6
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begin implementing scrolling screen
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2019-04-21 23:13:41 +09:30 |
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Paul Gardner-Stephen
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20b223b971
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fix bugs with double-length lines
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2019-04-21 22:26:48 +09:30 |
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Paul Gardner-Stephen
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abb71db8aa
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fix various problems with delete. Now seems to work fairly well.
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2019-04-21 22:09:29 +09:30 |
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Paul Gardner-Stephen
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c23f8cef4f
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implement core of delete char in chrout
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2019-04-21 21:59:06 +09:30 |
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Paul Gardner-Stephen
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07f1a649c5
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implement colour codes and updating colour RAM
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2019-04-21 21:49:43 +09:30 |
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Paul Gardner-Stephen
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6e4ba6ce18
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calculate address of screen colour line
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2019-04-21 21:40:49 +09:30 |
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Paul Gardner-Stephen
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135ac01235
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implement shift + Vendor key to toggle case
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2019-04-21 21:33:52 +09:30 |
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Paul Gardner-Stephen
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3f31054087
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disable screen X Y normalisation debug output
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2019-04-21 00:11:50 +09:30 |
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Paul Gardner-Stephen
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0a0934ce63
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reset key repeat delay when key is released.
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2019-04-21 00:10:33 +09:30 |
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Paul Gardner-Stephen
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b7621f9c7d
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factor out screen coordinate normalisation function
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2019-04-21 00:07:01 +09:30 |
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Paul Gardner-Stephen
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654abce59d
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make sure screen Y is not too large when normalising
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2019-04-21 00:05:16 +09:30 |
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Paul Gardner-Stephen
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b03742b745
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normalise screen X and Y positions when recalculating pointer
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2019-04-21 00:02:23 +09:30 |
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Paul Gardner-Stephen
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00591676dc
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make cursor visible immediately after printing a character, but for only 1 frame, to match C64 KERNAL behaviour
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2019-04-20 23:43:12 +09:30 |
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Paul Gardner-Stephen
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ace97a364c
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fix problems with key repeat
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2019-04-20 23:37:53 +09:30 |
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Paul Gardner-Stephen
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106c9dfd22
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begin implementing key repeat logic
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2019-04-20 23:29:16 +09:30 |
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Paul Gardner-Stephen
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0add45b798
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implement home key
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2019-04-20 23:17:44 +09:30 |
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