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VIC-IV screen code optimizations

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FeralChild64 committed 2020-08-23 21:44:38 +02:00
1 parent 19b45af197
commit 9e94b9d78c
17 files changed
+109 -85
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src/kernal/screen_m65/mega65_screen_tables_misc.s
+16
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@@ -26,6 +26,22 @@ m65_scrtab_scrolx: // values for VIC_SCROLX
.byte $CA
.byte $CA
m65_scrtab_rowoffset_lo: // row offsets - low bytes
.byte <(80 * 0), <(80 * 1), <(80 * 2), <(80 * 3), <(80 * 4), <(80 * 5), <(80 * 6), <(80 * 7), <(80 * 8), <(80 * 9)
.byte <(80 * 10), <(80 * 11), <(80 * 12), <(80 * 13), <(80 * 14), <(80 * 15), <(80 * 16), <(80 * 17), <(80 * 18), <(80 * 19)
.byte <(80 * 20), <(80 * 21), <(80 * 22), <(80 * 23), <(80 * 24), <(80 * 25), <(80 * 26), <(80 * 27), <(80 * 28), <(80 * 29)
.byte <(80 * 30), <(80 * 31), <(80 * 32), <(80 * 33), <(80 * 34), <(80 * 35), <(80 * 36), <(80 * 37), <(80 * 38), <(80 * 39)
.byte <(80 * 40), <(80 * 41), <(80 * 42), <(80 * 43), <(80 * 44), <(80 * 45), <(80 * 46), <(80 * 47), <(80 * 48), <(80 * 49)
m65_scrtab_rowoffset_hi: // row offsets - high bytes
.byte >(80 * 0), >(80 * 1), >(80 * 2), >(80 * 3), >(80 * 4), >(80 * 5), >(80 * 6), >(80 * 7), >(80 * 8), >(80 * 9)
.byte >(80 * 10), >(80 * 11), >(80 * 12), >(80 * 13), >(80 * 14), >(80 * 15), >(80 * 16), >(80 * 17), >(80 * 18), >(80 * 19)
.byte >(80 * 20), >(80 * 21), >(80 * 22), >(80 * 23), >(80 * 24), >(80 * 25), >(80 * 26), >(80 * 27), >(80 * 28), >(80 * 29)
.byte >(80 * 30), >(80 * 31), >(80 * 32), >(80 * 33), >(80 * 34), >(80 * 35), >(80 * 36), >(80 * 37), >(80 * 38), >(80 * 39)
.byte >(80 * 40), >(80 * 41), >(80 * 42), >(80 * 43), >(80 * 44), >(80 * 45), >(80 * 46), >(80 * 47), >(80 * 48), >(80 * 49)
// Jumptable for screen control codes support. To improve performance, should be sorted
// starting from the least probable routine.