First public commit.

2026-07-03 19:35:35 -07:00 · 2026-07-03 19:35:35 -07:00 · 4bac9d83ed
commit 4bac9d83ed
parent 2a48f52979
288 changed files with 18417 additions and 1076 deletions
--- a/lenser/atari/viewer/gr8.s
+++ b/lenser/atari/viewer/gr8.s
@ -0,0 +1,42 @@
+; lenser -- Atari GR.8 (ANTIC mode F) hi-res viewer, self-booting
+; 320x192, two tones.  Appended data from $4000 ...
+;   $4000/$5000  bitmap (1 bit per pixel, 4K split)
+;   $6000        two bytes, background reg then foreground reg
+;
+; assembled by atari/viewer/assemble.py via xa
+
+        * = $2000
+boot:
+        .byte 0
+        .byte 0                 ; sector count (patched)
+        .word $2000
+        .word binit
+
+cont:
+        lda #$22
+        sta $22f                ; SDMCTL
+        lda #<dlist
+        sta $230
+        lda #>dlist
+        sta $231
+        lda #$00
+        sta $26f                ; GPRIOR = 0
+        lda $6000
+        sta $2c6                ; COLPF2 (background)
+        sta $2c8                ; COLBAK (border) = background
+        lda $6001
+        sta $2c5                ; COLPF1 (foreground luminance)
+#include "awyt.i"
+binit:
+        rts
+
+dlist:
+        .byte $70,$70,$70
+        .byte $4f               ; LMS + mode F
+        .word $4000
+        .dsb 101,$0f
+        .byte $4f
+        .word $5000
+        .dsb 89,$0f
+        .byte $41
+        .word dlist