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Out (bc), r—also out (c), r for z80 compatibility, Operation, Description – Zilog EZ80F916 User Manual

Page 277: Condition bits affected, Attributes

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eZ80

®

CPU

User Manual

UM007715-0415

CPU Instruction Set

268

OUT (BC), r—also OUT (C), r for Z80 compatibility

Output to I/O

Operation

({UU, BC[15:0]})  r

Description

The r operand is any of the A, B, C, D, E, H, and L registers. The CPU outputs the con-

tents of this byte of the specified register to the I/O address {UU, BC[15:0]}. The upper

byte of the address bus, ADDR[23:16] is undefined for I/O addresses.

Condition Bits Affected

None.

Attributes

jj

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

indicated in

Table 76

.

Mnemonic Operand

ADL Mode Cycle

Opcode (hex)

OUT

(BC),r

X

3

ED, jj

Table 76. Register and

jj

Opcodes for OUT (BC), r and OUT (C), r

Instructions (hex)

Register jj

A

79

B

41

C

49

D

51

E

59

H

61

L

69

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