Tfr transfer data alu register tfr – Motorola DSP96002 User Manual
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DSP96002 USER’S MANUAL
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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