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Xor a, (ix/y+d), Operation, Description – Zilog EZ80F916 User Manual

Page 379: Condition bits affected attributes

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eZ80

®

CPU

User Manual

UM007715-0415

CPU Instruction Set

370

XOR A, (IX/Y+d)

Logical Exclusive OR

Operation

A  A XOR (IX/Y+d)

Description

The (IX/Y+d) operand is an 8-bit value at the memory location specified by the contents

of the Index Register, IX or IY, added to the two’s-complement displacement d. This 8-bit

value is bitwise exclusive-ORed with the contents of the accumulator, A. The result is

written to the accumulator.

Condition Bits Affected

Attributes

jj

identifies the A, B, C, D, E, H, or L register and is assembled into one of the opcodes

indicated in

Table 104

.

S

Set if result is negative; reset otherwise.

Z

Set if result is 0; reset otherwise.

H

Reset.

P/V

Set if parity is even; reset otherwise.

N

Reset.

C

Reset.

Mnemonic Operand

ADL Mode Cycle

Opcode (hex)

XOR

A,(IX+d)

X

4

DD, AE, dd

XOR.S

A,(IX+d)

1

5

52, DD, AE, dd

XOR.L

A,(IX+d)

0

5

49, DD, AE, dd

XOR

A,(IY+d)

X

4

FD, AE, dd

XOR.S

A,(IY+d)

1

5

52, FD, AE, dd

XOR.L

A,(IY+d)

0

5

49, FD, AE, dd

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