Zilog EZ80F916 - Manual (Page 130)

eZ80
®
CPU
User Manual
UM007715-0415 CPU Instruction Set
121
CP A, n
Compare with Accumulator
Operation
A – n
Description
The 8-bit immediate value n is compared with (subtracted from) the contents of the accu-
mulator, A. The execution of this instruction does not affect the contents of the accumula-
tor.
Condition Bits Affected
Attributes
S
Set if result is negative; reset otherwise.
Z
Set if A = n; reset otherwise.
H
Set if borrow from bit 4; reset otherwise.
P/V
Set if overflow: reset otherwise.
N
Set.
C
Set if borrow; reset otherwise.
Mnemonic Operand ADL Mode Cycle Opcode (hex)
CP
A,n X 2
FE nn