dsp56000 Freescale Semiconductor, Inc, dsp56000 Datasheet - Page 339

• 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 limiting (parallel move) or overflow has occurred in result
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
CMP
CMP
S1,S2
B,A
A,B
X0,A
X0,B
Y0,A
The definitions of the E and U bits vary according to the scaling mode being used.
23
15
LF
S1, S2
0 0 0 0
0 0 0 1
1 0 0 0
1 0 0 1
1 0 1 0
J J J d
DM
14
13
T
Freescale Semiconductor, Inc.
DATA BUS MOVE FIELD
12
**
For More Information On This Product,
MR
INSTRUCTION DESCRIPTIONS
11
S1
OPTIONAL EFFECTIVE ADDRESS EXTENSION
INSTRUCTION SET DETAILS
S1,S2
Y0,B
X1,A
X1,B
Y1,A
Y1,B
10
S0
Go to: www.freescale.com
9
I1
Compare
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1
J J J d
8
I0
7
S
6
8
L
7
0
5
E
J
4
U
CCR
J
3
N
J
2
Z
4
3
d
1
V
1
0
C
CMP
0
0
1
A - 73