Texas Instruments TMS320C3x - Manual (Page 145)

Rounding (RND Instruction)
5-40
Figure 5–19. Flowchart for Floating-Point Rounding by the RND Instruction
Test for special cases of c(man)
c (exp) = –128
c (man) = 0
Test for special cases of c (exp)
c (exp) overflow c (exp) in range
Set eight LSBs of c(man) to 0
c = rnd(
α
)
c (man) = c (man) < < 1
c (exp) =
α
( exp) + 1
α
If c (man) > 0,
set c to most positive
single-precision value
If c (man) < 0,
set c to most negative
single-precision value
Overflow of c (man)
Add
α
( man) and 1/2 of LSB
c ( man) = α
( man) + 2 – 24
1
×
2
α ( exp) – 24
No special case