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s7.s: fix sna/sma confusion that caused hangs in display PI code

This commit is contained in:
Phil Budne 2016-03-19 00:51:07 -04:00
parent b9fa7fb4fb
commit 053aedcf95

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@ -78,7 +78,7 @@ cnop: " fetched as constant in iread
"** BEGIN CROSSED OUT
1: lds " load display status (see 03-scope.pdf pg 25)
sma ral " edges flag??
sma ral " display trap set? (and rotate left)
jmp 1f " not set
cdf " clear display flags
lac .dspb
@ -99,11 +99,11 @@ dsprestart:
dac .dsptm " set .dsptm = -10 (10 ticks)
jmp piret
1: sna ral " dataphone flag set (bit 7)??
1: sma ral " edges flag set?? (and rotate)
jmp .+3 " no
raef " "resume after edges flag"
jmp piret " return
sma " light pen flags (bit 2)
sma " light pen flag?
jmp 1f " no
lda " G-2: load display address
dac .lpba " save