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MICROPROCESSOR INSTRUCTION REFERENCE->NEG

NEG     Negate accumulator

A <- 0 - A   (Two's complement)

Flags


S Set if result -ve, else cleared

Z Set if result zero, else cleared

H Set if half carry, else cleared

P/V Set if A was &80, else cleared

N Set always

C Set if A was not 0, else cleared



No of M T usec @

bytes cycles states 2 MHz


2 2 8 4

S	Set if result -ve, else cleared
Z	Set if result zero, else cleared
H	Set if half carry, else cleared
P/V	Set if A was &80, else cleared
N	Set always
C	Set if A was not 0, else cleared