git.y1.nz

commit 10cc14645a3830df30a19f52f58e4446972c6248
parent b421dac3e265fffee2405c32a1c0abe940db5ef0
Author: Michel Iwaniec <46843052+michel-iwaniec@users.noreply.github.com>
Date:   Sat, 26 Apr 2025 13:24:24 +0100

NES: Fix bug in ISR removal (#767)

NES: Fix bug in ISR removal (#767)

- Replace incorrect code copying jmp address's opcodes with the actual address


Diffstat:
M
gbdk-lib/libc/targets/mos6502/nes/lcd.s
4
++--

1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/gbdk-lib/libc/targets/mos6502/nes/lcd.s b/gbdk-lib/libc/targets/mos6502/nes/lcd.s
@@ -61,9 +61,9 @@ _remove_VBL::
 .remove_common:
     ; Replace handler address with dummy address pointing to RTS instruction
     jsr .irq_call_disable
-    lda .rts_instruction
+    lda #<.rts_instruction
     sta .jmp_to_xyz_isr+1,y
-    lda .rts_instruction+1
+    lda #>.rts_instruction
     sta .jmp_to_xyz_isr+2,y
     jsr .irq_call_restore
 .return_instruction:

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