penguin86/pato-z80-home-computer
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This commit is contained in:
Daniele Verducci su MatissePenguin
2021-02-15 21:23:12 +01:00
parent 706dbe56e1
commit d3604ca3ab
4 changed files with 43 additions and 27 deletions
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4
pat80-io-devices/composite-pal-adapter/software/avr-assembly/character_generator.asm
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@@ -48,7 +48,7 @@ draw_char:
; Char drawing is complete. Increment cursor position
inc POS_COLUMN
; Check if end of line
cpi POS_COLUMN, 52
cpi POS_COLUMN, LINE_COLUMNS
breq draw_char_eol
; Reset chunk position to first glyph line of next column
mov YL, r2 ; first restore Y
@@ -63,7 +63,7 @@ draw_char:
brne draw_char_end
cpi YL, low(FRAMEBUFFER_END + 1)
brne draw_char_end
; End of screen reached! Scroll framebuffer by 1 line (=52*FONT_HEIGHT bytes)
; End of screen reached! Scroll framebuffer by 1 line (=46*FONT_HEIGHT bytes)
; TODO
draw_char_end:
ret