Rregister to register parallel move r, Move, Caution – Motorola DSP96002 User Manual
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MOTOROLA
DSP96002 USER’S MANUAL
A - 225
R
Register To Register Parallel Move
R
Operation:
Opcode Operation S1
→
D1
Opcode Operation S2
→
D2
Assembler Syntax:
Opcode-Operands S1,D1
Opcode-Operands S2,D2
Description:
Move the source register to the destination register. Single precision to single precision moves (S1,D1) or
double precision to double precision moves (S2,D2) may be specified.
If the opcode-operand portion of the instruction specifies as the destination a portion of the register Dn, the
same register portion may not be specified as a destination D in the data bus move operation. That is, du-
plicate destinations are not allowed in the same instruction. For example, both a Data ALU operation and
a data move operation cannot write into the same register in the same instruction.
If the opcode-operand portion of the instruction specifies as the source or destination a portion of the reg-
ister Dn, the same register portion may be specified as a source S in the data bus move operation. That is,
duplicate sources are allowed in the same instruction. For example, a data move operation can read the
same register which is being used as a source or destination by a Data ALU operation in the same instruc-
tion.
CAUTION
See restrictions in Section A.10.6 concerning Rn, Mn, and Nn registers as a
destination.
Single Precision Instruction Format - Opcode-operands: S1, D1
0000
10DD
DDDD
dddd
dd
uu
uuuu
uuuu
uuuu
31
14 13
0
0001
011D
DDDD
0ddd
dd
uu
uuuu
uuuu
uuuu
31
14 13
0
Double Precision Instruction Format - Opcode-operands: S2, D2
Move
Move