penguin86/pato-z80-home-computer
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Untested code

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This commit is contained in:
Daniele Verducci (ZenPenguin)
2021-02-22 13:59:55 +01:00
parent 75f5ce057f
commit 2c65665900
3 changed files with 35 additions and 34 deletions
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pat80-io-devices/composite-pal-adapter/software/avr-assembly/main.asm
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@@ -28,10 +28,8 @@
; Cursor Position
; POS_COLUMN (0-46) represents the character/chunk column
; POS_ROWP (0-255) represent the chunk row. The caracter row is POS_ROWP/FONT_HEIGHT
; POS_FINE represents fine position (bit inside coarse-position-pointed chunk) in graphic mode.
.def POS_COLUMN = r21
.def POS_ROWP = r20
.def POS_FINE = r24
; Internal registers
.def A = r0 ; accumulator
.def STATUS = r25 ; signal status (see STATUS TABLE)