Motorola DSP96002 - Manual (Page 741)

C-18 DSP96002 USER’S MANUAL MOTOROLA
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MOVE EXPONENT RANGE INPUT DATA MOVE MOVE
IN (UNBIASED) OUT OUT
TYPE U V TYPE RESULT
SP E= 128 signaling NaN (SNAN) 0 0 SP CORRECT
Fraction= written as DP SNAN
.0xx...xx read as SNAN (see Note 1) DP CORRECT
SP E= 128 non signaling NaN (QNAN) 0 0 SP CORRECT
Fraction= written as DP QNAN
.1xx...xx read as QNAN (see Note 2) DP CORRECT
SP E= 128 infinity in SP 0 0 SP CORRECT
Fraction= written as DP infinity
.000...00 read as infinity (all formats) 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
DP E= 1024 signaling NaN (SNAN) 0 0 SP CORRECT
Fraction= written as DP SNAN
.0xx...xx read as SNAN (see Notes 1,3) DP CORRECT
DP E= 1024 non signaling NaN (QNAN) 0 0 SP CORRECT
Fraction= written as DP QNAN
.1xx...xx read as QNAN (see Note 2) DP CORRECT
DP E= 1024 infinity in SP 0 0 SP CORRECT
Fraction= written as DP infinity
.000...00 read as infinity (all formats) DP CORRECT
DP +127<E< 1024 no SP representation 0 0 SP WRONG
normalized in DP/SEP
DP CORRECT
DP -127<E< 128 normalized (all formats) 0 0 SP TRUNC
DP CORRECT
DP -150<E<-126 denormalized in SP 0 0 SP WRONG
normalized in DP/SEP
DP CORRECT
DP -1023<E<-149 no SP representation 0 0 SP WRONG
normalized in DP/SEP
DP CORRECT
DP -1054<E<-1022 denormalized (in DP/SEP) 0 1 SP WRONG
DP CORRECT
Figure C-14. Floating-Point Moves Summary
Figure C-13. Denormalized Numbers In Double Precision (DP)