dsp56000 Freescale Semiconductor, Inc, dsp56000 Datasheet - Page 341

• Manufacturer Part Number: dsp56000
• Description: 24-bit Digital Signal Processor Family Manual
• Manufacturer: Freescale Semiconductor, Inc

Condition Codes:
S — Computed according to the definition in A.5 CONDITION CODE COMPUTATION
L — Set if data limiting has occurred during a 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
C — Set if a carry (or borrow) occurs from bit 55 of A or B result.
Note:
Refer to Section A.5 for complete details.
Instruction Format:
Opcode:
Instruction Fields:
Timing: 2+mv oscillator clock cycles
Memory: 1+mv program words
MOTOROLA
CMPM
S1,S2 J J J d
CMPM
B,A
A,B
X0,A 1 0 0 0
The definitions of the E and U bits vary according to the scaling mode being used.
23
15
LF
0 0 0 0
0 0 0 1
DM
S1, S2
14
13
T
Freescale Semiconductor, Inc.
DATA BUS MOVE FIELD
**
12
For More Information On This Product,
MR
S1,S2 J J J d
OPTIONAL EFFECTIVE ADDRESS EXTENSION
INSTRUCTION DESCRIPTIONS
X0,B 1 0 0 1
Y0,A 1 0 1 0
Y0,B 1 0 1 1
S1
11
INSTRUCTION SET DETAILS
S0
10
Go to: www.freescale.com
Compare Magnitude
I1
9
I0
8
S
7
S1,S2 J J J d
X1,A 1 1 0 0
X1,B 1 1 0 1
Y1,A 1 1 1 0
Y1,B 1 1 1 1
8
6
L
7
0
E
5
J
U
4
CCR
J
N
3
J
Z
2
4
3
d
V
1
CMPM
1
C
0
1
0
1
A - 75