Ld a, i – Zilog Z08470 User Manual

Page 104

Advertising
background image

Z80 Instruction Set

UM008007-0715

92

Z80 CPU
User Manual

LD A, I

Operation

A ← 1

Op Code

LD

Operands

A, I

Description

The contents of the Interrupt Vector Register I are loaded to the Accumulator.

Condition Bits Affected

S is set if the I Register is negative; otherwise, it is reset.

Z is set if the I Register is 0; otherwise, it is reset.

H is reset.

P/V contains contents of IFF2.

N is reset.

C is not affected.

If an interrupt occurs during execution of this instruction, the Parity flag contains a 0.

M Cycles

T States

MHz E.T.

2

9 (4, 5)

2.25

1

1

0

0

1

1

1

1

ED

0

1

1

1

1

1

0

0

57

Advertising
This manual is related to the following products: