Stereo System User Manual

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