4501 datasheet(85/212 Pages) RENESAS

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Skip condition

Number of

cycles

Number of

words

Instruction

code

Flag CY

Skip condition

Number of

cycles

Number of

words

Instruction

code

Flag CY

Skip condition

Number of

cycles

Number of

words

Instruction

code

Flag CY

Skip condition

Number of

cycles

Number of

words

Instruction

code

Flag CY

INSTRUCTIONS

1-73

4501 Group

HARDWARE

Rev.2.01

Feb 07, 2005

REJ09B0192-0201

SCP (Set Port C)

1010001101

28D

–

Grouping:

Input/Output operation

Description: Sets (1) to port C.

Operation:

(C)

← 1

SD (Set port D specified by register Y)

0000010101

015

–

Grouping:

Input/Output operation

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

Note:

Set 0 to 3 to register Y because port D is

four ports (D0–D3).

When values except above are set to regis-

ter Y, this instruction is equivalent to the

NOP instruction.

Operation:

(D(Y))

← 1

(Y) = 0 to 3

SB j (Set Bit)

00010111j

–

Grouping:

Bit operation

Description: Sets (1) the contents of bit j (bit specified by

the value j in the immediate field) of M(DP).

Operation:

(Mj(DP))

← 0

j = 0 to 3

SC (Set Carry flag)

0000000111

007

–

Grouping:

Arithmetic operation

Description: Sets (1) to carry flag CY.

Operation:

(CY)

← 1

MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)

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