mirror of https://gitee.com/openkylin/linux.git
m68k: merge mmu and non-mmu versions of muldi3
The implementation of gcc's muldi3 support function differs only in the use of the machine's 64 bit sized mul or not. (It isn't based on using an MMU or not). Merge the current mmu and non-mmu versions of arc/m68k/lib/muldi3 and use the appropriate pre-processor conditionals to get the right version for all m68k processor types. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Greg Ungerer
parent
ea2b50ef4c
commit
98d655a68f
|
|
@ -1,5 +1,98 @@
|
|||
#ifdef CONFIG_MMU
|
||||
#include "muldi3_mm.c"
|
||||
/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
|
||||
gcc-2.7.2.3/longlong.h which is: */
|
||||
/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU CC.
|
||||
|
||||
GNU CC is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2, or (at your option)
|
||||
any later version.
|
||||
|
||||
GNU CC 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 General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU CC; see the file COPYING. If not, write to
|
||||
the Free Software Foundation, 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#if defined(__mc68020__) || defined(__mc68030__) || \
|
||||
defined(__mc68040__) || defined(__mc68060__) || defined(__mcpu32__)
|
||||
|
||||
#define umul_ppmm(w1, w0, u, v) \
|
||||
__asm__ ("mulu%.l %3,%1:%0" \
|
||||
: "=d" ((USItype)(w0)), \
|
||||
"=d" ((USItype)(w1)) \
|
||||
: "%0" ((USItype)(u)), \
|
||||
"dmi" ((USItype)(v)))
|
||||
|
||||
#else
|
||||
#include "muldi3_no.c"
|
||||
|
||||
#define SI_TYPE_SIZE 32
|
||||
#define __BITS4 (SI_TYPE_SIZE / 4)
|
||||
#define __ll_B (1L << (SI_TYPE_SIZE / 2))
|
||||
#define __ll_lowpart(t) ((USItype) (t) % __ll_B)
|
||||
#define __ll_highpart(t) ((USItype) (t) / __ll_B)
|
||||
|
||||
#define umul_ppmm(w1, w0, u, v) \
|
||||
do { \
|
||||
USItype __x0, __x1, __x2, __x3; \
|
||||
USItype __ul, __vl, __uh, __vh; \
|
||||
\
|
||||
__ul = __ll_lowpart (u); \
|
||||
__uh = __ll_highpart (u); \
|
||||
__vl = __ll_lowpart (v); \
|
||||
__vh = __ll_highpart (v); \
|
||||
\
|
||||
__x0 = (USItype) __ul * __vl; \
|
||||
__x1 = (USItype) __ul * __vh; \
|
||||
__x2 = (USItype) __uh * __vl; \
|
||||
__x3 = (USItype) __uh * __vh; \
|
||||
\
|
||||
__x1 += __ll_highpart (__x0);/* this can't give carry */ \
|
||||
__x1 += __x2; /* but this indeed can */ \
|
||||
if (__x1 < __x2) /* did we get it? */ \
|
||||
__x3 += __ll_B; /* yes, add it in the proper pos. */ \
|
||||
\
|
||||
(w1) = __x3 + __ll_highpart (__x1); \
|
||||
(w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
|
||||
} while (0)
|
||||
|
||||
#endif
|
||||
|
||||
#define __umulsidi3(u, v) \
|
||||
({DIunion __w; \
|
||||
umul_ppmm (__w.s.high, __w.s.low, u, v); \
|
||||
__w.ll; })
|
||||
|
||||
typedef int SItype __attribute__ ((mode (SI)));
|
||||
typedef unsigned int USItype __attribute__ ((mode (SI)));
|
||||
typedef int DItype __attribute__ ((mode (DI)));
|
||||
typedef int word_type __attribute__ ((mode (__word__)));
|
||||
|
||||
struct DIstruct {SItype high, low;};
|
||||
|
||||
typedef union
|
||||
{
|
||||
struct DIstruct s;
|
||||
DItype ll;
|
||||
} DIunion;
|
||||
|
||||
DItype
|
||||
__muldi3 (DItype u, DItype v)
|
||||
{
|
||||
DIunion w;
|
||||
DIunion uu, vv;
|
||||
|
||||
uu.ll = u,
|
||||
vv.ll = v;
|
||||
|
||||
w.ll = __umulsidi3 (uu.s.low, vv.s.low);
|
||||
w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
|
||||
+ (USItype) uu.s.high * (USItype) vv.s.low);
|
||||
|
||||
return w.ll;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,63 +0,0 @@
|
|||
/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
|
||||
gcc-2.7.2.3/longlong.h which is: */
|
||||
/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU CC.
|
||||
|
||||
GNU CC is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2, or (at your option)
|
||||
any later version.
|
||||
|
||||
GNU CC 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 General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU CC; see the file COPYING. If not, write to
|
||||
the Free Software Foundation, 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#define BITS_PER_UNIT 8
|
||||
|
||||
#define umul_ppmm(w1, w0, u, v) \
|
||||
__asm__ ("mulu%.l %3,%1:%0" \
|
||||
: "=d" ((USItype)(w0)), \
|
||||
"=d" ((USItype)(w1)) \
|
||||
: "%0" ((USItype)(u)), \
|
||||
"dmi" ((USItype)(v)))
|
||||
|
||||
#define __umulsidi3(u, v) \
|
||||
({DIunion __w; \
|
||||
umul_ppmm (__w.s.high, __w.s.low, u, v); \
|
||||
__w.ll; })
|
||||
|
||||
typedef int SItype __attribute__ ((mode (SI)));
|
||||
typedef unsigned int USItype __attribute__ ((mode (SI)));
|
||||
typedef int DItype __attribute__ ((mode (DI)));
|
||||
typedef int word_type __attribute__ ((mode (__word__)));
|
||||
|
||||
struct DIstruct {SItype high, low;};
|
||||
|
||||
typedef union
|
||||
{
|
||||
struct DIstruct s;
|
||||
DItype ll;
|
||||
} DIunion;
|
||||
|
||||
DItype
|
||||
__muldi3 (DItype u, DItype v)
|
||||
{
|
||||
DIunion w;
|
||||
DIunion uu, vv;
|
||||
|
||||
uu.ll = u,
|
||||
vv.ll = v;
|
||||
|
||||
w.ll = __umulsidi3 (uu.s.low, vv.s.low);
|
||||
w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
|
||||
+ (USItype) uu.s.high * (USItype) vv.s.low);
|
||||
|
||||
return w.ll;
|
||||
}
|
||||
|
|
@ -1,86 +0,0 @@
|
|||
/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
|
||||
gcc-2.7.2.3/longlong.h which is: */
|
||||
/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU CC.
|
||||
|
||||
GNU CC is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2, or (at your option)
|
||||
any later version.
|
||||
|
||||
GNU CC 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 General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU CC; see the file COPYING. If not, write to
|
||||
the Free Software Foundation, 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#define BITS_PER_UNIT 8
|
||||
#define SI_TYPE_SIZE 32
|
||||
|
||||
#define __BITS4 (SI_TYPE_SIZE / 4)
|
||||
#define __ll_B (1L << (SI_TYPE_SIZE / 2))
|
||||
#define __ll_lowpart(t) ((USItype) (t) % __ll_B)
|
||||
#define __ll_highpart(t) ((USItype) (t) / __ll_B)
|
||||
|
||||
#define umul_ppmm(w1, w0, u, v) \
|
||||
do { \
|
||||
USItype __x0, __x1, __x2, __x3; \
|
||||
USItype __ul, __vl, __uh, __vh; \
|
||||
\
|
||||
__ul = __ll_lowpart (u); \
|
||||
__uh = __ll_highpart (u); \
|
||||
__vl = __ll_lowpart (v); \
|
||||
__vh = __ll_highpart (v); \
|
||||
\
|
||||
__x0 = (USItype) __ul * __vl; \
|
||||
__x1 = (USItype) __ul * __vh; \
|
||||
__x2 = (USItype) __uh * __vl; \
|
||||
__x3 = (USItype) __uh * __vh; \
|
||||
\
|
||||
__x1 += __ll_highpart (__x0);/* this can't give carry */ \
|
||||
__x1 += __x2; /* but this indeed can */ \
|
||||
if (__x1 < __x2) /* did we get it? */ \
|
||||
__x3 += __ll_B; /* yes, add it in the proper pos. */ \
|
||||
\
|
||||
(w1) = __x3 + __ll_highpart (__x1); \
|
||||
(w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
|
||||
} while (0)
|
||||
|
||||
#define __umulsidi3(u, v) \
|
||||
({DIunion __w; \
|
||||
umul_ppmm (__w.s.high, __w.s.low, u, v); \
|
||||
__w.ll; })
|
||||
|
||||
typedef int SItype __attribute__ ((mode (SI)));
|
||||
typedef unsigned int USItype __attribute__ ((mode (SI)));
|
||||
typedef int DItype __attribute__ ((mode (DI)));
|
||||
typedef int word_type __attribute__ ((mode (__word__)));
|
||||
|
||||
struct DIstruct {SItype high, low;};
|
||||
|
||||
typedef union
|
||||
{
|
||||
struct DIstruct s;
|
||||
DItype ll;
|
||||
} DIunion;
|
||||
|
||||
DItype
|
||||
__muldi3 (DItype u, DItype v)
|
||||
{
|
||||
DIunion w;
|
||||
DIunion uu, vv;
|
||||
|
||||
uu.ll = u,
|
||||
vv.ll = v;
|
||||
|
||||
w.ll = __umulsidi3 (uu.s.low, vv.s.low);
|
||||
w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
|
||||
+ (USItype) uu.s.high * (USItype) vv.s.low);
|
||||
|
||||
return w.ll;
|
||||
}
|
||||
Loading…
Reference in New Issue