Texas Instruments TMS34010 Reference Guide

Runtime Environment - Floating-Point Support
• If 0<e<2047 and f#:O, then V = (-1)S x 2
e
-1023(.f): V is not valid if
X= (s,e,f) is not a normalized floating-point number
• If s=O, e=O, and f=O, the V = 0
•
For all other cases, V = not valid
Precision
of double-precision values is greater than 15 decimal digits; the
range includes:
• Positive values: 1 .11 254 x 10-
308
to 8.98847 x 10
308
• Negative values: -8.98847 x 10
308
to -1.11254 x 10-
308
• 0
• ±oo
5.7.2 Double-Precision Functions
Assume that dl and d2 are double-precision floating-point values on the
stack;
dl is pushed first.
Function
FD$ADD
FD$SUB
FD$SUB-R
FD$MUL
FD$DIV
FD$DIV-R
FD$INC
FD$INCR
FD$DEC
FD$DECR
FD$GE
FD$LE
FD$GT
FD$LT
FD$EQ
FD$NE
FD$NEG
FD$ZERO
Action
Return dl + d2
Return dl - d2
Return d2 - dl
Return dl * d2
Return dl / d2
Return d2 / dl
Return dl + 1.0
Return dl + 1.0 (Note: dl is not popped.)
Return
dl - 1.0
Return dl - 1.0 (Note: dl is not popped.)
Return
dl ;:: d2 (Return 1 or 0 in AS and set status.)
Return
dl ~ d2 (Return 1 or 0 in A8 and set status.)
Return
dl > d2 (Return 1 or 0 in AS and set status.)
Return
dl < d2 (Return 1 or 0 in AS and set status.)
Return
dl == d2 (Return 1 or 0 in AS and set status.)
Return
dl 1= d2 (Return 1 or 0 in AS and set status.)
Return
-dl (Note: FD$NEG is also used for single-
precision. )
Returns 1
jf dl = 0
5-19

Texas Instruments TMS34010 Specifications

General

Brand	Texas Instruments
Model	TMS34010
Category	Computer Hardware
Language	English