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Set b, (iy+d) – Zilog Z08470 User Manual

Page 266

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Z80 Instruction Set

UM008007-0715

254

Z80 CPU
User Manual

SET b, (IY+d)

Operation

(IY + d) b ← 1

Op Code

SET

Operands

b, (IY + d)

Description

Bit b in the memory location addressed by the sum of the contents of the IY register pair
and the two’s complement displacement d is set. In the assembled object code, operand b
is specified as follows:

Bit Tested

b

0

000

1

001

2

010

3

011

4

100

5

101

6

110

7

111

M Cycles

T States

4 MHz E.T.

6

23 (4, 4, 3, 5, 4, 3)

5.75

1

1

1

0

1

1

1

1

FD

1

1

0

1

1

0

0

1

CB

d

1

1

b

1

1

0

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