4559 datasheet(98/148 Pages) RENESAS

98 / 148 page

Rev.1.04

Aug 23, 2007

Page 98 of 146

REJ03B0188-0104

4559 Group

MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)

(Set Carry flag)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

000

11 2 00 7 16

111

Opera-

tion:

(CY)

← 1

Grouping:

Arithmetic operation

Description: Sets (1) to carry flag CY.

SCP

(Set Port C)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

000

01 2 28 D 16

Opera-

tion:

(C)

← 1

Grouping:

Input/Output operation

Description: Sets (1) to port C.

(Set port D specified by register Y)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

001

01 2 01 5 16

Opera-

tion:

(D(Y))

← 1

(Y) = 0 to 7

Grouping:

Input/Output operation

Description: Sets (1) to a bit of port D specified by register Y.

Note:

(Y) = 0 to 7.

Do not execute this instruction if values except above are

set to register Y.

SEA n

(Skip Equal, Accumulator with immediate data n)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

010

01 2 02 5 16

(A) = n

n = 0 to 15

111

nn 2 07 n 16 Grouping:

Comparison operation

Description: Skips the next instruction when the contents of register A is

equal to the value n in the immediate field.

Executes the next instruction when the contents of register

A is not equal to the value n in the immediate field.

Opera-

tion:

(A) = n ?

n = 0 to 15

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