Zilog Z08470 Manual do Utilizador descarregar pdf (Página 172)

100

101

Z80 Instruction Set UM008007-0715

160

Z80 CPU

User Manual

r identifies registers B, C, D, E, H, L, or A specified in the assembled object code field, as

follows:

Description

The logical exclusive-OR operation is performed between the byte specified by the s oper-

and and the byte contained in the Accumulator; the result is stored in the Accumulator.

Condition Bits Affected

S is set if result is negative; otherwise, it is reset.

Z is set if result is 0; otherwise, it is reset.

H is reset.

P/V is set if parity even; otherwise, it is reset.

N is reset.

C is reset.

Example

If the Accumulator contains 96h (1001 0110), then upon the execution of an XOR 5Dh

(5Dh = 0101 1101) instruction, the Accumulator contains CBh (1100 1011).

B 000

C 001

D 010

E 011

H 100

L 101

A 1l1

Instruction M Cycles T States 4 MHz E.T.

XOR r141.00

XOR n 2 7 (4, 3) 1.75

XOR (HL) 2 7 (4, 3) 1.75

XOR (IX+d) 5 19 (4, 4, 3, 5, 3) 4.75

XOR (lY+d) 5 19 (4, 4, 3, 5, 3) 4.75

1 2 ... 167 168 169 170 171 172 173 174 175 176 177 ... 325 326

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