m6800/m6802 instruction set
decrement memory		What links here?
Decrement Memory
MemonicMode OpcodeCyclesBytes
DEC Indexed 6A 7 2
Extended 7A 6 3


M = -M (bitwise negation)

Results:
N set if bit 7 is 1
Z set if all bits are 0
V operand = 1000000 before operation?
C not affected
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MC6802 - instruction set - decrement memory
Raspberry PI - determine version of raspbian running
filename:microprocessors - MC6800/MC6802 - instruction set - decrement memory
filename:microprocessors%20%2D%20MC6800%2FMC6802%20%2D%20instruction%20set%20%2D%20decrement%20memory
last edit:January 31 2010 13:32:44 (5499 days ago)
ct = 1740080011.000000 = February 20 2025 14:33:31
ft = 1264962764.000000 = January 31 2010 13:32:44
dt = 475117247.000000