Motorola DSP96002 User Manual
Page 746
MOTOROLA
DSP96002 USER’S MANUAL
C-23
ROUND EXPONENT RANGE DATA ALU OPERATION TAGS MOVE MOVE OUT
TO BEFORE ROUND RESULT OUT RESULT
(UNBIASED) U V TYPE
SP NaN operand or
non signaling NaN (QNAN)
0
0
SP
CORRECT
invalid op
written as DP QNAN
e=7FF mantissa=1.11...11
DP
CORRECT
SP 127<E
infinity (overflow)
0
0
SP
CORRECT
written as DP infinity
e=7FF mantissa=1.00...00
DP
CORRECT
SP 127<E< 128
normalized (all formats)
0
0
SP
CORRECT
DP
CORRECT
SP -150
<
E
< −
126
denormalized ( in SP)
1
0
SP
CORRECT
DP
WRONG
SP E
< −
149
zero (underflow)
0
0
SP
CORRECT
DP
CORRECT
SEP NaN operand or
non signaling NaN (QNAN)
0
0
SP
CORRECT
invalid op
written as DP QNAN
e=7FF mantissa=1.11...11
DP
CORRECT
SEP 1023<E
infinity in SP and SEP
0
0
SP
CORRECT
written as DP infinity
e=7FF mantissa=1.00...00
DP
CORRECT
SEP 127<E< 1024
infinity in SP
0
0
SP
WRONG
normalized in SEP
DP
CORRECT
SEP -127<E< 128
normalized (all formats)
0
0
SP
TRUNC
DP
CORRECT
SEP -150< e < -126 denormalized in SP 0 0 SP WRONG
normalized in SEP
DP CORRECT
SEP -1023< e < -149 zero in SP 0 0 SP WRONG
normalized in SEP
DP CORRECT
SEP -1054< e< -1022 zero in SP 0 1 SP WRONG
denormalized in SEP
DP CORRECT
SEP e< -1053 zero in SP 0 0 SP CORRECT
zero in SEP (underflow)
DP CORRECT
Figure C-16. Data ALU Results/Move Compatibility Summary