wip 160px height

dither4.s

@@ -27,11 +27,12 @@ sample_ptrh = $85
 sample_ptr = sample_ptrl
 scanline = $86
 
-height = 192
+height = 160
 bytes_per_line = 40
 pages_per_frame = 32
 lines_per_frame = 262
-scanline_offset = 31
+;scanline_offset = 31 + (40 - 24) / 2
+scanline_offset = 47
 scanline_max = (lines_per_frame - scanline_offset) / 2
 
 .data
@@ -44,12 +45,12 @@ scanline_max = (lines_per_frame - scanline_offset) / 2
 .import audio_samples_end
 
 displaylist:
-    ; 24 lines overscan
-    .repeat 3
+    ; 40 lines overscan
+    .repeat 5
         .byte $70 ; 8 blank lines
     .endrep
 
-    ; 192 lines graphics
+    ; 160 lines graphics
     ; ANTIC mode e (160px 2bpp, 1 scan line per line)
     .byte $4e
     .addr framebuffer