4571 datasheet(90/126 Pages) RENESAS

90 / 126 page

Rev.1.02

May 25, 2007

Page 90 of 124

REJ03B0179-0102

4571 Group

MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)

TAD

(Transfer data to Accumulator from register D)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

101

01 2 05 1 16

Opera-

tion:

(A2

−A0) ← (DR2−DR0)

(A3)

← 0

Grouping:

Description: Transfers the contents of register D to the low-order 3 bits

(A2

−A0) of register A.

“0” is stored to the bit 3 (A3) of register A.

TAI1

(Transfer data to Accumulator from register I1)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

101

11 2 25 3 16

Opera-

tion:

(A)

← (I1)

Grouping:

Interrupt operation

Description: Transfers the contents of interrupt control register I1 to

TAI2

(Transfer data to Accumulator from register I2)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

101

00 2 25 4 16

Opera-

tion:

(A)

← (I2)

Grouping:

Interrupt operation

Description: Transfers the contents of interrupt control register I2 to

TAK0

(Transfer data to Accumulator from register K0)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

101

10 2 25 6 16

Opera-

tion:

(A)

← (K0)

Grouping:

Input/Output operation

Description: Transfers the contents of key-on wakeup control register

K0 to register A.

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