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s7.s: fix sna/sma confusion that caused hangs in display PI code
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@ -78,7 +78,7 @@ cnop: " fetched as constant in iread
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"** BEGIN CROSSED OUT
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1: lds " load display status (see 03-scope.pdf pg 25)
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sma ral " edges flag??
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sma ral " display trap set? (and rotate left)
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jmp 1f " not set
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cdf " clear display flags
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lac .dspb
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@ -99,11 +99,11 @@ dsprestart:
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dac .dsptm " set .dsptm = -10 (10 ticks)
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jmp piret
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1: sna ral " dataphone flag set (bit 7)??
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1: sma ral " edges flag set?? (and rotate)
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jmp .+3 " no
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raef " "resume after edges flag"
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jmp piret " return
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sma " light pen flags (bit 2)
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sma " light pen flag?
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jmp 1f " no
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lda " G-2: load display address
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dac .lpba " save
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