MOTOROLA
DSP56000/DSP56001 USER’S MANUAL
A - 17
Condition Codes:
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:
The definition of the E and U bits varies according to the scaling mode being
used. Refer to A.4 CONDITION CODE COMPUTATION for complete details.
Instruction Format:
ADC S,D
Opcode:
Instruction Fields:
S,D
J d
X,A
0 0
X,B
0 1
Y,A
1 0
Y,B
1 1
Timing: 2+mv oscillator clock cycles
Memory: 1+mv program words
MR
CCR
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
LF
**
T
**
S1
S0
I1
I0
**
L
E
U
N
Z
V
C
23
8
7
4
3
0
DATA BUS MOVE FIELD
0
0
1
J
d
0
0
1
OPTIONAL EFFECTIVE ADDRESS EXTENSION
ADC
Add Long with Carry
ADC
F
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sc
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S
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n
d
u
c
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I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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