Stereo System User Manual

MOTOROLA DSP96002 USER’S MANUAL A - 307
TFR Transfer Data ALU Register TFR
Instruction Fields:
(u u)
Dddd
Dn.L n n n where nnn = 0-7
Ssss
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