 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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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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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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0add45b798
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implement home key
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2019-04-20 23:17:44 +09:30 |
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Paul Gardner-Stephen
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a51c8e9579
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work on cursor control keys in editor
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2019-04-20 23:09:55 +09:30 |
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Paul Gardner-Stephen
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513677ac6a
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implement more cursor movement code
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2019-04-20 22:18:52 +09:30 |
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Paul Gardner-Stephen
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c143c1328a
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begin implementing delete in chrout
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2019-04-20 21:54:40 +09:30 |
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Paul Gardner-Stephen
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fa82939cc5
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fix handling of printing $00 chars, and scanning $00 from keyboard matrix
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2019-04-20 02:38:23 +09:30 |
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Paul Gardner-Stephen
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415d5a94bb
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hide cursor when drawing, minor other fixes
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2019-04-19 23:40:51 +09:30 |
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Paul Gardner-Stephen
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1ca55c8df3
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ignore LF character in CHROUT (BASIC READY prompt tries to display it)
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2019-04-19 23:04:21 +09:30 |
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Paul Gardner-Stephen
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b95cbbb831
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advance line pointer on carriage return
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2019-04-19 23:00:07 +09:30 |
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Paul Gardner-Stephen
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63645c8ef8
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fix bugs with chrout to make work with BASIC
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2019-04-19 22:53:31 +09:30 |
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Paul Gardner-Stephen
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e538bfee0e
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implement CHROUT clear screen.
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2019-04-19 21:20:17 +09:30 |
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Paul Gardner-Stephen
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aeea452967
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fix chrout processing of Y and Z characters
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2019-04-19 21:12:19 +09:30 |
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Paul Gardner-Stephen
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bf4e22b99a
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save X and Y in CHROUT
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2019-04-19 21:11:24 +09:30 |
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Paul Gardner-Stephen
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aab7b98c27
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fix some bugs
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2019-04-19 21:03:53 +09:30 |
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Paul Gardner-Stephen
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85d6c10832
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begin implementing chrout
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2019-04-19 20:55:36 +09:30 |
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Paul Gardner-Stephen
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5c701f8dd0
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add stub routines to unimplemented calls
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2019-04-18 23:31:56 +09:30 |
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Paul Gardner-Stephen
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4e35ce391d
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add stubs for various routines defined in KERNAL jump table on pp272-273 of C64 Programmers Reference Guide
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2019-04-18 22:14:39 +09:30 |
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