Beispiel #1
0
def sub2(comp: Computer):
    ptr = getat_pages(comp, True)
    data = comp.getat(ptr)
    comp.accum -= data
    comp.overflow = comp.accum < 0
    comp.accum %= 256
Beispiel #2
0
def sba(comp: Computer):
    comp.accum -= comp.accum
    comp.overflow = comp.accum < 0
    comp.accum %= 256
Beispiel #3
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def sbi(comp: Computer):
    comp.pc += 1
    data = comp.getat(comp.pc)
    comp.accum -= data
    comp.overflow = comp.accum < 0
    comp.accum %= 256
Beispiel #4
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def sby(comp: Computer):
    comp.accum -= comp.regy
    comp.overflow = comp.accum < 0
    comp.accum %= 256
Beispiel #5
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def add2(comp: Computer):
    ptr = getat_pages(comp, True)
    data = comp.getat(ptr)
    comp.accum += data
    comp.overflow = comp.accum > 255
    comp.accum %= 256
Beispiel #6
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def adi(comp: Computer):
    comp.pc += 1
    data = comp.getat(comp.pc)
    comp.accum += data
    comp.overflow = comp.accum > 255
    comp.accum %= 256
Beispiel #7
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def ada(comp: Computer):
    comp.accum += comp.accum
    comp.overflow = comp.accum > 255
    comp.accum %= 256
Beispiel #8
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def ady(comp: Computer):
    comp.accum += comp.regy
    comp.overflow = comp.accum > 255
    comp.accum %= 256