08-20-2010
Quote:
Originally Posted by
rdcwayx
Please be careful, my code is not for Rounding.
If you need rounding (0.145893), it should be 0.15
it shouldn't now as percentage is very low .14% and its gonna be same low % for rest of the file .
but it would be better if rounding is done in the script
thanks
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LEARN ABOUT OSF1
write_rnd
write_rnd(3) Library Functions Manual write_rnd(3)
NAME
write_rnd, read_rnd - Sets and returns IEEE dynamic rounding mode for floating-point operations
LIBRARY
Standard C Library (libc.so, libc.a)
SYNOPSIS
#include <float.h>
unsigned int write_rnd(
unsigned int rnd);
unsigned int read_rnd();
DESCRIPTION
The write_rnd function sets the dynamic rounding mode in the floating-point control register (fpcr) for IEEE floating-point operations and
returns the previous dynamic rounding mode. Dynamic rounding mode for IEEE floating-point operations is enabled for code generated by the
C compiler by specifying -fprm d to cc(1), and by using the d floating-point instruction operator in assembly language code.
Specify rnd as one of the following constants defined in float.h
---------------------------------------------------
Constant Meaning
---------------------------------------------------
FP_RND_RZ Round toward zero (chopped rounding)
FP_RND_RN Round toward nearest (normal rounding)
FP_RND_RP Round toward plus infinity
FP_RND_RM Round toward minus infinity
---------------------------------------------------
The read_rnd function returns the current dynamic rounding mode for floating-point operations.
RETURN VALUES
The write_rnd function returns the previous IEEE floating-point rounding mode. The read_rnd function returns the current IEEE floating-
point rounding mode.
RELATED INFORMATION
Commands: cc(1).
Files: float.h.
Assembly Language Programmer's Guide.
Alpha Architecture Reference Manual.
IEEE Standard for Binary Floating-Point Arithmetic delim off
write_rnd(3)