NetBSD/lib/libm/arch/i387/s_log1pf.S

/*
 * Written by J.T. Conklin <jtc@netbsd.org>.
 * Public domain.
 */

#include <machine/asm.h>

#include "abi.h"

RCSID("$NetBSD: s_log1pf.S,v 1.6 2001/06/19 00:26:30 fvdl Exp $")

/*
 * Since the fyl2xp1 instruction has such a limited range:
 *	-(1 - (sqrt(2) / 2)) <= x <= sqrt(2) - 1
 * it's not worth trying to use it.
 */

ENTRY(log1pf)
	XMM_ONE_ARG_FLOAT_PROLOGUE
	fldln2
	flds	ARG_FLOAT_ONE
	fld1
	faddp
	fyl2x
	XMM_FLOAT_EPILOGUE
	ret
Assembly language versions of some of the "float" functions. 1994-08-19 07:56:44 +04:00			`/*`
Winning Strategies has placed this code into the Public Domain 1995-04-29 02:43:31 +04:00			`* Written by J.T. Conklin <jtc@netbsd.org>.`
			`* Public domain.`
Assembly language versions of some of the "float" functions. 1994-08-19 07:56:44 +04:00			`*/`

			`#include <machine/asm.h>`

Modify the i387 code so that it can be shared between the i386 port and the x86_64 port. XXX some files should be distinct. 2001-06-19 04:26:29 +04:00			`#include "abi.h"`

			`RCSID("$NetBSD: s_log1pf.S,v 1.6 2001/06/19 00:26:30 fvdl Exp $")`
Assembly language versions of some of the "float" functions. 1994-08-19 07:56:44 +04:00
			`/*`
Remove lie (in a comment) about conversion between 80 bit ot 64 bit reals, since we set up the fpu to do all calculations in 64 bit mode at this time. 1994-08-26 04:20:34 +04:00			`* Since the fyl2xp1 instruction has such a limited range:`
Assembly language versions of some of the "float" functions. 1994-08-19 07:56:44 +04:00			`* -(1 - (sqrt(2) / 2)) <= x <= sqrt(2) - 1`
More trailing white space. 1999-07-02 19:37:33 +04:00			`* it's not worth trying to use it.`
Assembly language versions of some of the "float" functions. 1994-08-19 07:56:44 +04:00			`*/`
Remove lie (in a comment) about conversion between 80 bit ot 64 bit reals, since we set up the fpu to do all calculations in 64 bit mode at this time. 1994-08-26 04:20:34 +04:00
Assembly language versions of some of the "float" functions. 1994-08-19 07:56:44 +04:00			`ENTRY(log1pf)`
Modify the i387 code so that it can be shared between the i386 port and the x86_64 port. XXX some files should be distinct. 2001-06-19 04:26:29 +04:00			`XMM_ONE_ARG_FLOAT_PROLOGUE`
Assembly language versions of some of the "float" functions. 1994-08-19 07:56:44 +04:00			`fldln2`
Modify the i387 code so that it can be shared between the i386 port and the x86_64 port. XXX some files should be distinct. 2001-06-19 04:26:29 +04:00			`flds ARG_FLOAT_ONE`
Assembly language versions of some of the "float" functions. 1994-08-19 07:56:44 +04:00			`fld1`
			`faddp`
			`fyl2x`
Modify the i387 code so that it can be shared between the i386 port and the x86_64 port. XXX some files should be distinct. 2001-06-19 04:26:29 +04:00			`XMM_FLOAT_EPILOGUE`
Assembly language versions of some of the "float" functions. 1994-08-19 07:56:44 +04:00			`ret`