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Zilog EZ80F916 User Manual

Page 78

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eZ80

®

CPU

User Manual

UM007715-0415

CPU Instruction Set

69

MLT

ss

ss

[15:0]  ss[15:8] X ss[7:0]

rr

ED 4C–6C

— — — — — —

SP

ED 7C

NEG

A  0 – A

ED 44

* * *

V

1 *

NOP

00

— — — — — —

OR

A,s

A  A OR s

(HL)

B6

* * 0

P

0 0

ir

DD/FD B4–B5

(IX/Y+d) DD/FD B6 dd

n

F6

r

B0–B7

OTD2R

repeat {

({00h, DE[15:0]}  (HL))

BC  BC – 1

DE  DE – 1

HL  HL – 1

} while BC  0

ED BC

— 1 — —

* —

OTDM

({0000h, C})  (HL)

B B – 1

C  C – 1

HL  HL – 1

ED 8B

X * X

X

* X

OTDMR

repeat {

({0000h, C})  (HL)

B  B – 1

C  C – 1

HL  HL – 1

} while B  0

ED 9B

X 1 X

X

* X

Table 37. Instruction Summary (Continued)

Instruction and Operation

Address Mode

Opcode(s)
(Hex)

Flags Affected

Dest Source

S

Z

H

P/V

N

C

Note: *This flag value is a function of the result of the affected operation.

— = No Change.

0 = Set to 0.

1 = Set to 1.

V = Set to 1 if overflow occurs.

X = Undetermined.

P = Set to the parity of the result (0 if odd parity, 1 if even parity).

IEF2 = The value of Interrupt Enable Flag 2.

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