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Fix bugs in sevenseg.s

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Fixed bug where we forgot to restore x in _hex_set_8 if the idx check
fails. We did remember to restore it if the check passed.

Fixed bug where _hex_set_24 did not return 0.
This commit is contained in:
Byron Lathi
2022-03-12 22:04:28 -06:00
parent 1a9290b97b
commit a6bcadab6e
1 changed files with 2 additions and 0 deletions
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2
sw/sevenseg.s
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@@ -18,6 +18,7 @@ _hex_set_8:
phx phx
cmp #$3 ; If idx >= 3 then fail cmp #$3 ; If idx >= 3 then fail
bcc @1 bcc @1
plx
lda #$1 lda #$1
rts rts
@1: tax ; Move idx into x @1: tax ; Move idx into x
@@ -44,6 +45,7 @@ _hex_set_24:
stx SEVEN_SEG+1 stx SEVEN_SEG+1
lda sreg lda sreg
sta SEVEN_SEG+2 sta SEVEN_SEG+2
lda #$0
rts rts
; @in A: mask ; @in A: mask