Stereo System User Manual

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