mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-15 20:43:29 +08:00
update from main archive 960909
This commit is contained in:
parent
44b8acdd3a
commit
16d6b38e4d
@ -19,9 +19,10 @@ Cambridge, MA 02139, USA. */
|
||||
|
||||
#include <sysdep.h>
|
||||
|
||||
ENTRY(fabs)
|
||||
ENTRY(__fabs)
|
||||
.prologue 0
|
||||
cpys $f31,$f16,$f0
|
||||
ret
|
||||
|
||||
END(fabs)
|
||||
END(__fabs)
|
||||
weak_alias (__fabs, fabs)
|
@ -20,7 +20,7 @@ Cambridge, MA 02139, USA. */
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
|
||||
#ifdef __NO_MATH_INLINES
|
||||
#ifdef __NO_M81_MATH_INLINES
|
||||
/* This is used when defining the functions themselves. Define them with
|
||||
__ names, and with `static inline' instead of `extern inline' so the
|
||||
bodies will always be used, never an external function call. */
|
||||
@ -29,7 +29,7 @@ Cambridge, MA 02139, USA. */
|
||||
#else
|
||||
#define __m81_u(x) x
|
||||
#define __m81_inline extern __inline
|
||||
#define __MATH_INLINES 1
|
||||
#define __M81_MATH_INLINES 1
|
||||
#endif
|
||||
|
||||
/* Define a const math function. */
|
||||
|
@ -16,8 +16,9 @@ License along with the GNU C Library; see the file COPYING.LIB. If
|
||||
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#include <ansidecl.h>
|
||||
#define __NO_M81_MATH_INLINES
|
||||
#include <math.h>
|
||||
#include "math_private.h"
|
||||
|
||||
#ifndef FUNC
|
||||
#define FUNC __ieee754_acos
|
||||
@ -27,7 +28,8 @@ Cambridge, MA 02139, USA. */
|
||||
#endif
|
||||
|
||||
float_type
|
||||
DEFUN(FUNC, (x), float_type x)
|
||||
FUNC (x)
|
||||
float_type x;
|
||||
{
|
||||
return __m81_u(FUNC)(x);
|
||||
}
|
||||
|
@ -16,8 +16,9 @@ License along with the GNU C Library; see the file COPYING.LIB. If
|
||||
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#include <ansidecl.h>
|
||||
#define __NO_M81_MATH_INLINES
|
||||
#include <math.h>
|
||||
#include "math_private.h"
|
||||
|
||||
#ifndef FUNC
|
||||
#define FUNC __ieee754_fmod
|
||||
@ -27,7 +28,9 @@ Cambridge, MA 02139, USA. */
|
||||
#endif
|
||||
|
||||
float_type
|
||||
DEFUN(FUNC, (x, y), float_type x AND float_type y)
|
||||
FUNC (x, y)
|
||||
float_type x;
|
||||
float_type y;
|
||||
{
|
||||
return __m81_u(FUNC)(x, y);
|
||||
}
|
||||
|
@ -16,7 +16,9 @@ License along with the GNU C Library; see the file COPYING.LIB. If
|
||||
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#define __NO_M81_MATH_INLINES
|
||||
#include <math.h>
|
||||
#include "math_private.h"
|
||||
|
||||
#ifndef FUNC
|
||||
#define FUNC cos
|
||||
|
@ -16,7 +16,9 @@ License along with the GNU C Library; see the file COPYING.LIB. If
|
||||
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#define __NO_M81_MATH_INLINES
|
||||
#include <math.h>
|
||||
#include "math_private.h"
|
||||
|
||||
#ifndef FUNC
|
||||
#define FUNC sin
|
||||
@ -35,7 +37,7 @@ __CONCATX(__kernel_,FUNC) (x, y, iy)
|
||||
{
|
||||
float_type sin_x, cos_x, sin_y, cos_y;
|
||||
if (iy == 0)
|
||||
return __m81_u_(__CONCATX(__,FUNC)) (x);
|
||||
return __m81_u(__CONCATX(__,FUNC)) (x);
|
||||
__asm__ __volatile__ ("fsincosx %2,%0:%1" : "=f" (cos_x), "=f" (sin_x)
|
||||
: "f" (x));
|
||||
__asm__ __volatile__ ("fsincosx %2,%0:%1" : "=f" (cos_y), "=f" (sin_y)
|
||||
|
@ -16,7 +16,9 @@ License along with the GNU C Library; see the file COPYING.LIB. If
|
||||
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#define __NO_M81_MATH_INLINES
|
||||
#include <math.h>
|
||||
#include "math_private.h"
|
||||
|
||||
#ifndef FUNC
|
||||
#define FUNC tan
|
||||
@ -34,8 +36,8 @@ __CONCATX(__kernel_,FUNC) (x, y, iy)
|
||||
int iy;
|
||||
{
|
||||
float_type tan_x, tan_y;
|
||||
tan_x = __m81_u_(__CONCATX(__,FUNC)) (x);
|
||||
tan_y = __m81_u_(__CONCATX(__,FUNC)) (y);
|
||||
tan_x = __m81_u(__CONCATX(__,FUNC)) (x);
|
||||
tan_y = __m81_u(__CONCATX(__,FUNC)) (y);
|
||||
if (iy > 0)
|
||||
return (tan_x + tan_y) / (1 - tan_x * tan_y);
|
||||
else
|
||||
|
@ -17,6 +17,7 @@ not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#include <ansidecl.h>
|
||||
#define __NO_M81_MATH_INLINES
|
||||
#include <math.h>
|
||||
|
||||
#ifndef FUNC
|
||||
|
@ -17,6 +17,7 @@ not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#include <ansidecl.h>
|
||||
#define __NO_M81_MATH_INLINES
|
||||
#include <math.h>
|
||||
|
||||
#ifndef FUNC
|
||||
|
@ -17,6 +17,7 @@ not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#include <ansidecl.h>
|
||||
#define __NO_M81_MATH_INLINES
|
||||
#include <math.h>
|
||||
|
||||
#ifndef FUNC
|
||||
|
@ -17,6 +17,7 @@ not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#include <ansidecl.h>
|
||||
#define __NO_M81_MATH_INLINES
|
||||
#include <math.h>
|
||||
|
||||
#ifndef FUNC
|
||||
|
@ -17,6 +17,7 @@ not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#include <ansidecl.h>
|
||||
#define __NO_M81_MATH_INLINES
|
||||
#include <math.h>
|
||||
|
||||
#ifndef FUNC
|
||||
|
@ -17,6 +17,7 @@ not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#include <ansidecl.h>
|
||||
#define __NO_M81_MATH_INLINES
|
||||
#include <math.h>
|
||||
|
||||
#ifndef FUNC
|
||||
|
@ -1,22 +0,0 @@
|
||||
/* Copyright (C) 1991 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If
|
||||
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#define FPCONST(hi0, lo0, hi1, lo1) { (hi0), (lo0), (hi1), (lo1) }
|
||||
|
||||
#include <../sysdeps/vax/log10.c>
|
||||
|
@ -4,3 +4,4 @@ ioperm.c
|
||||
init-first.h
|
||||
clone.S
|
||||
sys/io.h
|
||||
llseek.S
|
||||
|
@ -1,12 +0,0 @@
|
||||
/* This fragment is invoked in the stack context of program start.
|
||||
Its job is to set up a pointer to argc as an argument, pass
|
||||
control to `INIT', and, if necessary, clean up after the call
|
||||
to leave the stack in the same condition it was found in. */
|
||||
|
||||
#define SYSDEP_CALL_INIT(NAME, INIT) \
|
||||
asm(".globl " #NAME "\n\t" \
|
||||
#NAME ":\n\t" \
|
||||
"pea %sp@(4)\n\t" \
|
||||
"jbsr " #INIT "\n\t" \
|
||||
"addq #4,%sp\n\t" \
|
||||
"rts");
|
@ -1 +1,2 @@
|
||||
DEFS.h
|
||||
fl.h
|
||||
|
@ -1,57 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 1983 Regents of the University of California.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
.asciz "@(#)bcmp.s 5.6 (Berkeley) 6/1/90"
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
/* bcmp(s1, s2, n) */
|
||||
|
||||
#include "DEFS.h"
|
||||
|
||||
ENTRY(bcmp, 0)
|
||||
movl 4(ap),r1
|
||||
movl 8(ap),r3
|
||||
movl 12(ap),r4
|
||||
1:
|
||||
movzwl $65535,r0
|
||||
cmpl r4,r0
|
||||
jleq 2f
|
||||
subl2 r0,r4
|
||||
cmpc3 r0,(r1),(r3)
|
||||
jeql 1b
|
||||
addl2 r4,r0
|
||||
ret
|
||||
2:
|
||||
cmpc3 r4,(r1),(r3)
|
||||
ret
|
@ -1,99 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 1980 Regents of the University of California.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
.asciz "@(#)index.s 5.6 (Berkeley) 6/1/90"
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
/*
|
||||
* Find the first occurence of c in the string cp.
|
||||
* Return pointer to match or null pointer.
|
||||
*
|
||||
* char *
|
||||
* index(cp, c)
|
||||
* char *cp, c;
|
||||
*/
|
||||
#include "DEFS.h"
|
||||
|
||||
ENTRY(index, 0)
|
||||
movq 4(ap),r1 # r1 = cp; r2 = c
|
||||
tstl r2 # check for special case c == '\0'
|
||||
bneq 2f
|
||||
1:
|
||||
locc $0,$65535,(r1) # just find end of string
|
||||
beql 1b # still looking
|
||||
movl r1,r0 # found it
|
||||
ret
|
||||
2:
|
||||
moval tbl,r3 # r3 = address of table
|
||||
bbss $0,(r3),5f # insure not reentering
|
||||
movab (r3)[r2],r5 # table entry for c
|
||||
incb (r5)
|
||||
movzwl $65535,r4 # fast access
|
||||
3:
|
||||
scanc r4,(r1),(r3),$1 # look for c or '\0'
|
||||
beql 3b # still looking
|
||||
movl r1,r0 # return pointer to char
|
||||
tstb (r0) # if have found '\0'
|
||||
bneq 4f
|
||||
clrl r0 # else return 0
|
||||
4:
|
||||
clrb (r5) # clean up table
|
||||
clrb (r3)
|
||||
ret
|
||||
|
||||
.data
|
||||
tbl: .space 256
|
||||
.text
|
||||
|
||||
/*
|
||||
* Reentrant, but slower version of index
|
||||
*/
|
||||
5:
|
||||
movl r1,r3
|
||||
6:
|
||||
locc $0,$65535,(r3) # look for '\0'
|
||||
bneq 7f
|
||||
locc r2,$65535,(r3) # look for c
|
||||
bneq 8f
|
||||
movl r1,r3 # reset pointer and ...
|
||||
jbr 6b # ... try again
|
||||
7:
|
||||
subl3 r3,r1,r4 # length of short block
|
||||
incl r4 # +1 for '\0'
|
||||
locc r2,r4,(r3) # look for c
|
||||
bneq 8f
|
||||
ret
|
||||
8:
|
||||
movl r1,r0 # return pointer to char
|
||||
ret
|
@ -1,62 +0,0 @@
|
||||
/* Copyright (C) 1991, 1992, 1995 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If
|
||||
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#ifndef __GNUC__
|
||||
#error This file uses GNU C extensions; you must compile with GCC.
|
||||
#else
|
||||
|
||||
#include <ansidecl.h>
|
||||
#include <errno.h>
|
||||
#include <math.h>
|
||||
|
||||
/* Deal with an infinite or NaN result.
|
||||
If ERROR is ERANGE, result is +Inf;
|
||||
if ERROR is - ERANGE, result is -Inf;
|
||||
otherwise result is NaN.
|
||||
This will set `errno' to either ERANGE or EDOM,
|
||||
and may return an infinity or NaN, or may do something else. */
|
||||
double
|
||||
DEFUN(__infnan, (error), int error)
|
||||
{
|
||||
switch (error)
|
||||
{
|
||||
case ERANGE:
|
||||
errno = ERANGE;
|
||||
break;
|
||||
|
||||
case - ERANGE:
|
||||
errno = ERANGE;
|
||||
break;
|
||||
|
||||
default:
|
||||
errno = EDOM;
|
||||
break;
|
||||
}
|
||||
|
||||
/* Trigger a reserved operand fault. */
|
||||
{
|
||||
double result;
|
||||
asm volatile("emodd %1, %1, %2, %0, %0" : "=r" (result) :
|
||||
"i" (0), "i" (0x8000));
|
||||
return result;
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
weak_alias (__infnan, infnan)
|
@ -1,28 +0,0 @@
|
||||
/* Copyright (C) 1991 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If
|
||||
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#include <ansidecl.h>
|
||||
|
||||
#ifndef FPCONST
|
||||
#define FPCONST(hi0, lo0, hi1, lo1) { (lo0), (hi0), (lo1), (hi1) }
|
||||
#endif
|
||||
|
||||
static CONST short int ln10[] = FPCONST(0x4113, 0x5d8d, 0xddaa, 0xa8ac);
|
||||
#define LN10 (*(CONST double *) ln10)
|
||||
|
||||
#include <../sysdeps/generic/log10.c>
|
@ -59,3 +59,5 @@ ENTRY(memcmp, 0)
|
||||
cmpc3 r5,(r1),(r3)
|
||||
jeql 0b /* loop if same */
|
||||
jbr 1b
|
||||
|
||||
weak_alias (memcmp, bcmp)
|
||||
|
@ -1,113 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 1983 Regents of the University of California.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
.asciz "@(#)rindex.s 5.6 (Berkeley) 6/1/90"
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
/*
|
||||
* Find the last occurence of c in the string cp.
|
||||
* Return pointer to match or null pointer.
|
||||
*
|
||||
* char *
|
||||
* rindex(cp, c)
|
||||
* char *cp, c;
|
||||
*/
|
||||
#include "DEFS.h"
|
||||
|
||||
ENTRY(rindex, 0)
|
||||
movq 4(ap),r1 # r1 = cp; r2 = c
|
||||
tstl r2 # check for special case c == '\0'
|
||||
bneq 2f
|
||||
1:
|
||||
locc $0,$65535,(r1) # just find end of string
|
||||
beql 1b # still looking
|
||||
movl r1,r0 # found it
|
||||
ret
|
||||
2:
|
||||
moval tbl,r3 # r3 = address of table
|
||||
bbss $0,(r3),5f # insure not reentering
|
||||
movab (r3)[r2],r5 # table entry for c
|
||||
incb (r5)
|
||||
clrl r4 # last found
|
||||
3:
|
||||
scanc $65535,(r1),(r3),$1 # look for c or '\0'
|
||||
beql 3b # keep looking
|
||||
tstb (r1) # if have found '\0'
|
||||
beql 4f # we are done
|
||||
movl r1,r4 # save most recently found
|
||||
incl r1 # skip over character
|
||||
jbr 3b # keep looking
|
||||
4:
|
||||
movl r4,r0 # return last found (if any)
|
||||
clrb (r5) # clean up table
|
||||
clrb (r3)
|
||||
ret
|
||||
|
||||
.data
|
||||
tbl: .space 256
|
||||
.text
|
||||
|
||||
/*
|
||||
* Reentrant, but slower version of rindex
|
||||
*/
|
||||
5:
|
||||
movl r1,r3
|
||||
clrl r4 # r4 = pointer to last match
|
||||
6:
|
||||
locc $0,$65535,(r3) # look for '\0'
|
||||
bneq 8f
|
||||
decw r0 # r0 = 65535
|
||||
1:
|
||||
locc r2,r0,(r3) # look for c
|
||||
bneq 7f
|
||||
movl r1,r3 # reset pointer and ...
|
||||
jbr 6b # ... try again
|
||||
7:
|
||||
movl r1,r4 # stash pointer ...
|
||||
addl3 $1,r1,r3 # ... skip over match and ...
|
||||
decl r0 # ... decrement count
|
||||
jbr 6b # ... try again
|
||||
8:
|
||||
subl3 r3,r1,r0 # length of short block
|
||||
incl r0 # +1 for '\0'
|
||||
9:
|
||||
locc r2,r0,(r3) # look for c
|
||||
beql 0f
|
||||
movl r1,r4 # stash pointer ...
|
||||
addl3 $1,r1,r3 # ... skip over match ...
|
||||
decl r0 # ... adjust count and ...
|
||||
jbr 9b # ... try again
|
||||
0:
|
||||
movl r4,r0 # return stashed pointer
|
||||
ret
|
@ -103,3 +103,5 @@ Lreent:
|
||||
beql 2f /* not found: return NULL */
|
||||
movl r1,r0
|
||||
2: ret
|
||||
|
||||
weak_alias (strchr, index)
|
||||
|
@ -112,3 +112,5 @@ Lreent:
|
||||
3:
|
||||
movl r5,r0 /* return stashed pointer */
|
||||
ret
|
||||
|
||||
weak_alias (strrchr, rindex)
|
||||
|
Loading…
Reference in New Issue
Block a user