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Oakland CPM Archive
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oakcpm.iso
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asmutl
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buffers.lbr
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DCXM.MAC
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Text File
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1987-01-15
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256 b
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15 lines
;
; decrement word hl^, advance hl by 1 (to hi byte of m)
; z flag for zero after decrementing
; a,f,h,l
.dcxm:: dcr m
mov a,m
inx h
inr a
rnz
ora m
rz; zero result, no wrap
dcr m
ora a; reset any zero flag
ret
3