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Tfr transfer data alu register tfr – Motorola DSP96002 User Manual

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MOTOROLA

DSP96002 USER’S MANUAL

A - 307

TFR

Transfer Data ALU Register

TFR

Instruction Fields:

(u u)

D

d d d

Dn.L

n n n

where nnn = 0-7

S

s s s

Dn.L

n n n

where nnn = 0-7

Timing: 2 + mv oscillator clock cycles

Memory: 1 + mv program words

Operation:

S.L

D.L (parallel data bus move)

Assembler Syntax:

TFR S,D
(move syntax - see the Move instruction de-

scription.)

Description:

Transfer data from the low portion of the specified source Data ALU register to the low portion of the spec-

ified destination Data ALU register. TFR uses the internal Data ALU paths but does not affect the condition

code bits. When the S and D registers are the same, this instruction is equivalent to an integer rounding

operation.

Input Operand(s) Precision: 32-bit integer.

Output Operand Precision: 32-bit integer.

CCR Condition Codes: Not affected.

ER Status Bits: Not affected.

IER Flags: Not affected.

Instruction Format: TFR S,D (move syntax - see the Move instruction description.)

10

1sss

uu01

1ddd

31

14 13

0

OPTIONAL EFFECTIVE ADDRESS EXTENSION OR IMMEDIATE LONG DATA

DATA BUS MOVE FIELD