base:introduction_to_raster_irqs
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revision | |||
base:introduction_to_raster_irqs [2016-06-19 03:49] – Pointed out an error. pixman | base:introduction_to_raster_irqs [2016-12-08 21:46] (current) – bit 8 = 9th bit cruzer | ||
---|---|---|---|
Line 44: | Line 44: | ||
lda #$1b ;as there are more than 256 rasterlines, | lda #$1b ;as there are more than 256 rasterlines, | ||
- | sta $d011 ;the 8th bit for the rasterline we want our irq to be triggered. | + | sta $d011 ;the 9th bit for the rasterline we want our irq to be triggered. |
;here we simply set up a character screen, leaving the topmost bit 0. | ;here we simply set up a character screen, leaving the topmost bit 0. | ||
base/introduction_to_raster_irqs.1466300993.txt.gz · Last modified: 2016-06-19 03:49 by pixman