4501 datasheet(83/116 Pages) RENESAS

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4501 Group

Rev.3.01

2005.02.07

page 83 of 112

REJ03B0104-0301

TAX (Transfer data to Accumulator from register X)

0001010010

052

–

Grouping:

Description: Transfers the contents of register X to reg-

ister A.

Operation:

(A)

← (X)

TAY (Transfer data to Accumulator from register Y)

0000011111

01F

––

Grouping:

Description: Transfers the contents of register Y to regis-

ter A.

Operation:

(A)

← (Y)

MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)

TBA (Transfer data to register B from Accumulator)

0000001110

00E

––

Grouping:

Description: Transfers the contents of register A to regis-

ter B.

Operation:

(B)

← (A)

TAZ (Transfer data to Accumulator from register Z)

0001010011

053

––

Grouping:

Description: Transfers the contents of register Z to the

low-order 2 bits (A1, A0) of register A.

Note:

After this instruction is executed, “0” is

stored to the high-order 2 bits (A3, A2) of

Operation:

(A1, A0)

← (Z1, Z0)

(A3, A2)

← 0

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