IRQBRKHDLR: Add LDA #$80, TSB $C036 to set GS to fast mode.

2025-08-08 23:25:03 +00:00 · 2022-09-20 23:31:16 -04:00
parent 0a2b891b7c
commit 5481da53f3
2 changed files with 2 additions and 0 deletions
--- a/applecorn.po
+++ b/applecorn.po
--- a/auxmem.misc.s
+++ b/auxmem.misc.s
@@ -562,6 +562,8 @@ IRQBRKHDLR  PHA
            STA   $45                ; $45=A for ProDOS IRQ handlers
            BPL   :S1                ; If aux write wasn't active, skip
            STA   $C005              ; Write to aux memory
+            LDA   #$80
+            TSB   $C036              ; For GS: Enable 'fast' speed
 :S1         TXA
            PHA
            CLD