Motorola DSP56000 Manual page 597

Table A-27 Operation Code QQQ Decode
NOTE: S1 and S2 are the inputs to the multiplier.
MACR (±) S1,S2,D
MACR (±) S2,S1,D
23
MAC (±) S1,S2,D
MAC (±) S2,S1,D
23
MPYR (±) S1,S2,D
MPYR (±) S2,S1,D
23
MPY (±) S1,S2,D
MPY (±) S2,S1,D
23
MOTOROLA
INSTRUCTION ENCODING
Q Q Q
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
DATA BUS MOVE FIELD
OPTIONAL EFFECTIVE ADDRESS EXTENSION
DATA BUS MOVE FIELD
OPTIONAL EFFECTIVE ADDRESS EXTENSION
DATA BUS MOVE FIELD
OPTIONAL EFFECTIVE ADDRESS EXTENSION
DATA BUS MOVE FIELD
OPTIONAL EFFECTIVE ADDRESS EXTENSION
INSTRUCTION SET DETAILS
S1 S2
X0 X0
Y0 Y0
X1 X0
Y1 Y0
X0 Y1
Y0 X0
X1 Y0
Y1 X1
8 7 4 3
1 Q Q Q
8 7 4 3
1 Q Q Q
8 7 4 3
1 Q Q Q
8 7 4 3
1 Q Q Q
0
d k 1 1
0
d k 1 0
0
d k 0 1
0
d k 0 0
A - 331