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Add a, (hl), Operation, Description – Zilog EZ80F916 User Manual

Page 97: Condition bits affected attributes

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eZ80

®

CPU

User Manual

UM007715-0415

CPU Instruction Set

88

ADD A, (HL)

ADD without Carry

Operation

A  A+(HL)

Description

The (HL) operand is an 8-bit value retrieved from the memory location specified by the

contents of the multibyte register HL. This 8-bit value is added to the contents of the accu-

mulator, A. The result is stored in the accumulator.

Condition Bits Affected

Attributes

S

Set if result is negative; reset otherwise.

Z

Set if result is 0; reset otherwise.

H

Set if carry from bit 3; reset otherwise.

P/V

Set if overflow; reset otherwise.

N

Reset.

C

Set if carry from bit 7; reset otherwise.

Mnemonic

Operand

ADL Mode

Cycle

Opcode (hex)

ADD

A,(HL)

X

2

86

ADD.S

A,(HL)

1

3

52, 86

ADD

.L

A,(HL)

0

3

49, 86

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