Added a cbm510 lightpen driver.

It's similar to the current c64 and c128 lightpen drivers.
2013-09-09 17:03:40 -04:00
parent edc5ed4f54
commit e0c8c7dcb1
4 changed files with 544 additions and 1 deletions
--- a/asminc/cbm510.inc
+++ b/asminc/cbm510.inc
@@ -23,6 +23,9 @@ YSIZE           = 25

 ;-----------------------------------------------------------------------------
 ; I/O Definitions
+; Note:  These numbers aren't addresses.  They are offsets from the start of
+; each chip's register set.  They are used in the indirect indexed addressing
+; mode.

 ; I/O  $d800: VIC-II

@@ -66,6 +69,9 @@ VIC_CTRL2       = $16

 VIC_HLINE       = $12

+VIC_LPEN_X      = $13
+VIC_LPEN_Y      = $14
+
 VIC_VIDEO_ADR   = $18

 VIC_IRR         = $19           ; Interrupt request register