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unconditional branch wasn't always taken because stepptr doesn't always return with Z=0

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4am 2021-11-21 15:34:44 -05:00
parent 5db033f8ef
commit 9f5fd1e382
1 changed files with 5 additions and 2 deletions
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7
src/okvs.a
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@ -395,8 +395,11 @@ okvs_next_field
+ST16 PTR +ST16 PTR
okvs_next_field_PTR_is_already_set okvs_next_field_PTR_is_already_set
jsr stepptr jsr stepptr
bne incptr jmp incptr ; do NOT change this to BNE
; because if the low byte of PTR is 0
; and the value of (PTR) is also 0
; then stepptr will return with Z=1 and
; we will fall through here unexpectedly
incptr4 jsr incptr2 incptr4 jsr incptr2
incptr2 jsr incptr incptr2 jsr incptr
incptr incptr