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MPYR
Condition Codes:
15
14
13
LF
DM
S — Computed according to the definition in A.5 CONDITION CODE COMPUTATION
L — Set if limiting occurred during parallel move
E — Set if the signed integer portion of A or B result is in use
U — Set if A or B result is unnormalized
N — Set if bit 55 of A or B result is set
Z— Set if A or B result equals zero
V — Set if overflow has occurred in A or B result
Note: The definitions of the E and U bits vary according to the scaling mode being used.
Refer to Section A.5 CONDITION CODE COMPUTATION for complete details.
Instruction Format 1:
MPYR ( ±) S1,S2,D
MPYR ( ±) S2,S1,D
Opcode 1:
23
MOTOROLA
INSTRUCTION SET DESCRIPTIONS
Signed Multiply and Round
12
11
10
9
T
S1
S0
I1
**
MR
DATA BUS MOVE FIELD
OPTIONAL EFFECTIVE ADDRESS EXTENSION
INSTRUCTION SET DETAILS
8
7
6
5
4
I0
S
L
E
U
CCR
8
7
1
Q
Q
MPYR
3
2
1
0
N
Z
V
C
4
3
0
Q
d
k
0
1
A - 233
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