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14neg.s
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1980-02-17
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251b
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30 lines
/
/ NEGATION & ABSOLUTE VALUE
/
_ABS2:
tst (sp)
bge 1f
_NEG2:
neg (sp)
1:
sxt -(sp)
return
_ABS4:
tst (sp)
bge 1f
_NEG4:
mov (sp)+,r0
neg r0
neg (sp)
sbc r0
mov r0,-(sp)
1:
return
_ABS8:
absf (sp)
return
_NEG8:
negf (sp)
cfcc
return