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Data ALU Operation
(IEEE Mode)
FNEG.X
FSCALE.S
FSCALE.X
FSEEDD
FSEEDR
FSUB.S
FSUB.X
FTFR.S
FTFR.X
FTST
GETEXP
IFcc
IFcc.U
INT
INTRZ
INTU
INTURZ
Figure A-8 Data ALU Operation Timing Summary (Continued)
where
dam = 2 * (res + i * (1 + den)) clock cycles
res= number of de/unnormalized results.
den= number of source operands with U-tag or V-tag set.
i = 0, if den=0; 1 otherwise.
dams= 2 * (res + i * (1 + den)) clock cycles
res= number of multiplier and add/sub de/unnormalized results.
den= number of multiplier source operands with U-tag or V-tag set +
number of add/sub
i = 0, if den=0; 1 otherwise.
damx= 2 * (res + i * (1 + den)) clock cycles
MOTOROLA
+da Cycles
+ da Cycles
worst case
dax
4
dam
6
dam
6
dam
6
dam
4
das
8
dax
6
das
6
dax
4
dax
4
dam
4
daff
n/a
daff
n/a
dax
4
dax
4
dax
4
dax
4
source operands with U-tag set.
DSP96002 USER'S MANUAL
Comments
Worst case:
den=1
Worst case: res=1, den=1
Worst case: res=1, den=1
Worst case: res=1, den=1
Worst case: res=0 den=1
Worst case: res=1, den=2
Worst case:
den=2
Worst case: res=1, den=1
Worst case:
den=1
Worst case:
den=1
Worst case:
den=1
Worst case:
den=1
Worst case:
den=1
Worst case:
den=1
Worst case:
den=1
A - 319
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