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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m68knommu/lib
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/m68knommu/lib')
-rw-r--r--arch/m68knommu/lib/Makefile7
-rw-r--r--arch/m68knommu/lib/ashldi3.c62
-rw-r--r--arch/m68knommu/lib/ashrdi3.c63
-rw-r--r--arch/m68knommu/lib/checksum.c160
-rw-r--r--arch/m68knommu/lib/delay.c21
-rw-r--r--arch/m68knommu/lib/divsi3.S125
-rw-r--r--arch/m68knommu/lib/lshrdi3.c62
-rw-r--r--arch/m68knommu/lib/memcpy.c63
-rw-r--r--arch/m68knommu/lib/memset.c47
-rw-r--r--arch/m68knommu/lib/modsi3.S113
-rw-r--r--arch/m68knommu/lib/muldi3.c86
-rw-r--r--arch/m68knommu/lib/mulsi3.S110
-rw-r--r--arch/m68knommu/lib/semaphore.S67
-rw-r--r--arch/m68knommu/lib/udivsi3.S162
-rw-r--r--arch/m68knommu/lib/umodsi3.S113
15 files changed, 1261 insertions, 0 deletions
diff --git a/arch/m68knommu/lib/Makefile b/arch/m68knommu/lib/Makefile
new file mode 100644
index 000000000000..e051a7913987
--- /dev/null
+++ b/arch/m68knommu/lib/Makefile
@@ -0,0 +1,7 @@
1#
2# Makefile for m68knommu specific library files..
3#
4
5lib-y := ashldi3.o ashrdi3.o lshrdi3.o \
6 muldi3.o mulsi3.o divsi3.o udivsi3.o modsi3.o umodsi3.o \
7 checksum.o semaphore.o memcpy.o memset.o delay.o
diff --git a/arch/m68knommu/lib/ashldi3.c b/arch/m68knommu/lib/ashldi3.c
new file mode 100644
index 000000000000..008403eb8ce2
--- /dev/null
+++ b/arch/m68knommu/lib/ashldi3.c
@@ -0,0 +1,62 @@
1/* ashrdi3.c extracted from gcc-2.95.2/libgcc2.c which is: */
2/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
3
4This file is part of GNU CC.
5
6GNU CC is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 2, or (at your option)
9any later version.
10
11GNU CC is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GNU CC; see the file COPYING. If not, write to
18the Free Software Foundation, 59 Temple Place - Suite 330,
19Boston, MA 02111-1307, USA. */
20
21#define BITS_PER_UNIT 8
22
23typedef int SItype __attribute__ ((mode (SI)));
24typedef unsigned int USItype __attribute__ ((mode (SI)));
25typedef int DItype __attribute__ ((mode (DI)));
26typedef int word_type __attribute__ ((mode (__word__)));
27
28struct DIstruct {SItype high, low;};
29
30typedef union
31{
32 struct DIstruct s;
33 DItype ll;
34} DIunion;
35
36DItype
37__ashldi3 (DItype u, word_type b)
38{
39 DIunion w;
40 word_type bm;
41 DIunion uu;
42
43 if (b == 0)
44 return u;
45
46 uu.ll = u;
47
48 bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
49 if (bm <= 0)
50 {
51 w.s.low = 0;
52 w.s.high = (USItype)uu.s.low << -bm;
53 }
54 else
55 {
56 USItype carries = (USItype)uu.s.low >> bm;
57 w.s.low = (USItype)uu.s.low << b;
58 w.s.high = ((USItype)uu.s.high << b) | carries;
59 }
60
61 return w.ll;
62}
diff --git a/arch/m68knommu/lib/ashrdi3.c b/arch/m68knommu/lib/ashrdi3.c
new file mode 100644
index 000000000000..78efb65e315a
--- /dev/null
+++ b/arch/m68knommu/lib/ashrdi3.c
@@ -0,0 +1,63 @@
1/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
2/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
3
4This file is part of GNU CC.
5
6GNU CC is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 2, or (at your option)
9any later version.
10
11GNU CC is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GNU CC; see the file COPYING. If not, write to
18the Free Software Foundation, 59 Temple Place - Suite 330,
19Boston, MA 02111-1307, USA. */
20
21#define BITS_PER_UNIT 8
22
23typedef int SItype __attribute__ ((mode (SI)));
24typedef unsigned int USItype __attribute__ ((mode (SI)));
25typedef int DItype __attribute__ ((mode (DI)));
26typedef int word_type __attribute__ ((mode (__word__)));
27
28struct DIstruct {SItype high, low;};
29
30typedef union
31{
32 struct DIstruct s;
33 DItype ll;
34} DIunion;
35
36DItype
37__ashrdi3 (DItype u, word_type b)
38{
39 DIunion w;
40 word_type bm;
41 DIunion uu;
42
43 if (b == 0)
44 return u;
45
46 uu.ll = u;
47
48 bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
49 if (bm <= 0)
50 {
51 /* w.s.high = 1..1 or 0..0 */
52 w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1);
53 w.s.low = uu.s.high >> -bm;
54 }
55 else
56 {
57 USItype carries = (USItype)uu.s.high << bm;
58 w.s.high = uu.s.high >> b;
59 w.s.low = ((USItype)uu.s.low >> b) | carries;
60 }
61
62 return w.ll;
63}
diff --git a/arch/m68knommu/lib/checksum.c b/arch/m68knommu/lib/checksum.c
new file mode 100644
index 000000000000..7bec6fdee34b
--- /dev/null
+++ b/arch/m68knommu/lib/checksum.c
@@ -0,0 +1,160 @@
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * IP/TCP/UDP checksumming routines
7 *
8 * Authors: Jorge Cwik, <jorge@laser.satlink.net>
9 * Arnt Gulbrandsen, <agulbra@nvg.unit.no>
10 * Tom May, <ftom@netcom.com>
11 * Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de>
12 * Lots of code moved from tcp.c and ip.c; see those files
13 * for more names.
14 *
15 * 03/02/96 Jes Sorensen, Andreas Schwab, Roman Hodek:
16 * Fixed some nasty bugs, causing some horrible crashes.
17 * A: At some points, the sum (%0) was used as
18 * length-counter instead of the length counter
19 * (%1). Thanks to Roman Hodek for pointing this out.
20 * B: GCC seems to mess up if one uses too many
21 * data-registers to hold input values and one tries to
22 * specify d0 and d1 as scratch registers. Letting gcc choose these
23 * registers itself solves the problem.
24 *
25 * This program is free software; you can redistribute it and/or
26 * modify it under the terms of the GNU General Public License
27 * as published by the Free Software Foundation; either version
28 * 2 of the License, or (at your option) any later version.
29 */
30
31/* Revised by Kenneth Albanowski for m68knommu. Basic problem: unaligned access kills, so most
32 of the assembly has to go. */
33
34#include <linux/module.h>
35#include <net/checksum.h>
36
37static inline unsigned short from32to16(unsigned long x)
38{
39 /* add up 16-bit and 16-bit for 16+c bit */
40 x = (x & 0xffff) + (x >> 16);
41 /* add up carry.. */
42 x = (x & 0xffff) + (x >> 16);
43 return x;
44}
45
46static unsigned long do_csum(const unsigned char * buff, int len)
47{
48 int odd, count;
49 unsigned long result = 0;
50
51 if (len <= 0)
52 goto out;
53 odd = 1 & (unsigned long) buff;
54 if (odd) {
55 result = *buff;
56 len--;
57 buff++;
58 }
59 count = len >> 1; /* nr of 16-bit words.. */
60 if (count) {
61 if (2 & (unsigned long) buff) {
62 result += *(unsigned short *) buff;
63 count--;
64 len -= 2;
65 buff += 2;
66 }
67 count >>= 1; /* nr of 32-bit words.. */
68 if (count) {
69 unsigned long carry = 0;
70 do {
71 unsigned long w = *(unsigned long *) buff;
72 count--;
73 buff += 4;
74 result += carry;
75 result += w;
76 carry = (w > result);
77 } while (count);
78 result += carry;
79 result = (result & 0xffff) + (result >> 16);
80 }
81 if (len & 2) {
82 result += *(unsigned short *) buff;
83 buff += 2;
84 }
85 }
86 if (len & 1)
87 result += (*buff << 8);
88 result = from32to16(result);
89 if (odd)
90 result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
91out:
92 return result;
93}
94
95/*
96 * This is a version of ip_compute_csum() optimized for IP headers,
97 * which always checksum on 4 octet boundaries.
98 */
99unsigned short ip_fast_csum(unsigned char * iph, unsigned int ihl)
100{
101 return ~do_csum(iph,ihl*4);
102}
103
104/*
105 * computes the checksum of a memory block at buff, length len,
106 * and adds in "sum" (32-bit)
107 *
108 * returns a 32-bit number suitable for feeding into itself
109 * or csum_tcpudp_magic
110 *
111 * this function must be called with even lengths, except
112 * for the last fragment, which may be odd
113 *
114 * it's best to have buff aligned on a 32-bit boundary
115 */
116unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum)
117{
118 unsigned int result = do_csum(buff, len);
119
120 /* add in old sum, and carry.. */
121 result += sum;
122 if (sum > result)
123 result += 1;
124 return result;
125}
126
127EXPORT_SYMBOL(csum_partial);
128
129/*
130 * this routine is used for miscellaneous IP-like checksums, mainly
131 * in icmp.c
132 */
133unsigned short ip_compute_csum(const unsigned char * buff, int len)
134{
135 return ~do_csum(buff,len);
136}
137
138/*
139 * copy from fs while checksumming, otherwise like csum_partial
140 */
141
142unsigned int
143csum_partial_copy_from_user(const unsigned char *src, unsigned char *dst,
144 int len, int sum, int *csum_err)
145{
146 if (csum_err) *csum_err = 0;
147 memcpy(dst, src, len);
148 return csum_partial(dst, len, sum);
149}
150
151/*
152 * copy from ds while checksumming, otherwise like csum_partial
153 */
154
155unsigned int
156csum_partial_copy(const unsigned char *src, unsigned char *dst, int len, int sum)
157{
158 memcpy(dst, src, len);
159 return csum_partial(dst, len, sum);
160}
diff --git a/arch/m68knommu/lib/delay.c b/arch/m68knommu/lib/delay.c
new file mode 100644
index 000000000000..5bd5472d38a0
--- /dev/null
+++ b/arch/m68knommu/lib/delay.c
@@ -0,0 +1,21 @@
1/*
2 * arch/m68knommu/lib/delay.c
3 *
4 * (C) Copyright 2004, Greg Ungerer <gerg@snapgear.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#include <linux/module.h>
12#include <asm/param.h>
13#include <asm/delay.h>
14
15EXPORT_SYMBOL(udelay);
16
17void udelay(unsigned long usecs)
18{
19 _udelay(usecs);
20}
21
diff --git a/arch/m68knommu/lib/divsi3.S b/arch/m68knommu/lib/divsi3.S
new file mode 100644
index 000000000000..ec307b61991e
--- /dev/null
+++ b/arch/m68knommu/lib/divsi3.S
@@ -0,0 +1,125 @@
1/* libgcc1 routines for 68000 w/o floating-point hardware.
2 Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc.
3
4This file is part of GNU CC.
5
6GNU CC is free software; you can redistribute it and/or modify it
7under the terms of the GNU General Public License as published by the
8Free Software Foundation; either version 2, or (at your option) any
9later version.
10
11In addition to the permissions in the GNU General Public License, the
12Free Software Foundation gives you unlimited permission to link the
13compiled version of this file with other programs, and to distribute
14those programs without any restriction coming from the use of this
15file. (The General Public License restrictions do apply in other
16respects; for example, they cover modification of the file, and
17distribution when not linked into another program.)
18
19This file is distributed in the hope that it will be useful, but
20WITHOUT ANY WARRANTY; without even the implied warranty of
21MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22General Public License for more details.
23
24You should have received a copy of the GNU General Public License
25along with this program; see the file COPYING. If not, write to
26the Free Software Foundation, 59 Temple Place - Suite 330,
27Boston, MA 02111-1307, USA. */
28
29/* As a special exception, if you link this library with files
30 compiled with GCC to produce an executable, this does not cause
31 the resulting executable to be covered by the GNU General Public License.
32 This exception does not however invalidate any other reasons why
33 the executable file might be covered by the GNU General Public License. */
34
35/* Use this one for any 680x0; assumes no floating point hardware.
36 The trailing " '" appearing on some lines is for ANSI preprocessors. Yuk.
37 Some of this code comes from MINIX, via the folks at ericsson.
38 D. V. Henkel-Wallace (gumby@cygnus.com) Fete Bastille, 1992
39*/
40
41/* These are predefined by new versions of GNU cpp. */
42
43#ifndef __USER_LABEL_PREFIX__
44#define __USER_LABEL_PREFIX__ _
45#endif
46
47#ifndef __REGISTER_PREFIX__
48#define __REGISTER_PREFIX__
49#endif
50
51#ifndef __IMMEDIATE_PREFIX__
52#define __IMMEDIATE_PREFIX__ #
53#endif
54
55/* ANSI concatenation macros. */
56
57#define CONCAT1(a, b) CONCAT2(a, b)
58#define CONCAT2(a, b) a ## b
59
60/* Use the right prefix for global labels. */
61
62#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
63
64/* Use the right prefix for registers. */
65
66#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)
67
68/* Use the right prefix for immediate values. */
69
70#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__, x)
71
72#define d0 REG (d0)
73#define d1 REG (d1)
74#define d2 REG (d2)
75#define d3 REG (d3)
76#define d4 REG (d4)
77#define d5 REG (d5)
78#define d6 REG (d6)
79#define d7 REG (d7)
80#define a0 REG (a0)
81#define a1 REG (a1)
82#define a2 REG (a2)
83#define a3 REG (a3)
84#define a4 REG (a4)
85#define a5 REG (a5)
86#define a6 REG (a6)
87#define fp REG (fp)
88#define sp REG (sp)
89
90 .text
91 .proc
92 .globl SYM (__divsi3)
93SYM (__divsi3):
94 movel d2, sp@-
95
96 moveq IMM (1), d2 /* sign of result stored in d2 (=1 or =-1) */
97 movel sp@(12), d1 /* d1 = divisor */
98 jpl L1
99 negl d1
100#if !(defined(__mcf5200__) || defined(__mcoldfire__))
101 negb d2 /* change sign because divisor <0 */
102#else
103 negl d2 /* change sign because divisor <0 */
104#endif
105L1: movel sp@(8), d0 /* d0 = dividend */
106 jpl L2
107 negl d0
108#if !(defined(__mcf5200__) || defined(__mcoldfire__))
109 negb d2
110#else
111 negl d2
112#endif
113
114L2: movel d1, sp@-
115 movel d0, sp@-
116 jbsr SYM (__udivsi3) /* divide abs(dividend) by abs(divisor) */
117 addql IMM (8), sp
118
119 tstb d2
120 jpl L3
121 negl d0
122
123L3: movel sp@+, d2
124 rts
125
diff --git a/arch/m68knommu/lib/lshrdi3.c b/arch/m68knommu/lib/lshrdi3.c
new file mode 100644
index 000000000000..93b1cb6fdee8
--- /dev/null
+++ b/arch/m68knommu/lib/lshrdi3.c
@@ -0,0 +1,62 @@
1/* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
2/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
3
4This file is part of GNU CC.
5
6GNU CC is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 2, or (at your option)
9any later version.
10
11GNU CC is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GNU CC; see the file COPYING. If not, write to
18the Free Software Foundation, 59 Temple Place - Suite 330,
19Boston, MA 02111-1307, USA. */
20
21#define BITS_PER_UNIT 8
22
23typedef int SItype __attribute__ ((mode (SI)));
24typedef unsigned int USItype __attribute__ ((mode (SI)));
25typedef int DItype __attribute__ ((mode (DI)));
26typedef int word_type __attribute__ ((mode (__word__)));
27
28struct DIstruct {SItype high, low;};
29
30typedef union
31{
32 struct DIstruct s;
33 DItype ll;
34} DIunion;
35
36DItype
37__lshrdi3 (DItype u, word_type b)
38{
39 DIunion w;
40 word_type bm;
41 DIunion uu;
42
43 if (b == 0)
44 return u;
45
46 uu.ll = u;
47
48 bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
49 if (bm <= 0)
50 {
51 w.s.high = 0;
52 w.s.low = (USItype)uu.s.high >> -bm;
53 }
54 else
55 {
56 USItype carries = (USItype)uu.s.high << bm;
57 w.s.high = (USItype)uu.s.high >> b;
58 w.s.low = ((USItype)uu.s.low >> b) | carries;
59 }
60
61 return w.ll;
62}
diff --git a/arch/m68knommu/lib/memcpy.c b/arch/m68knommu/lib/memcpy.c
new file mode 100644
index 000000000000..0d5577569e4c
--- /dev/null
+++ b/arch/m68knommu/lib/memcpy.c
@@ -0,0 +1,63 @@
1
2#include <linux/types.h>
3#include <linux/autoconf.h>
4
5void * memcpy(void * to, const void * from, size_t n)
6{
7#ifdef CONFIG_COLDFIRE
8 void *xto = to;
9 size_t temp;
10
11 if (!n)
12 return xto;
13 if ((long) to & 1)
14 {
15 char *cto = to;
16 const char *cfrom = from;
17 *cto++ = *cfrom++;
18 to = cto;
19 from = cfrom;
20 n--;
21 }
22 if (n > 2 && (long) to & 2)
23 {
24 short *sto = to;
25 const short *sfrom = from;
26 *sto++ = *sfrom++;
27 to = sto;
28 from = sfrom;
29 n -= 2;
30 }
31 temp = n >> 2;
32 if (temp)
33 {
34 long *lto = to;
35 const long *lfrom = from;
36 for (; temp; temp--)
37 *lto++ = *lfrom++;
38 to = lto;
39 from = lfrom;
40 }
41 if (n & 2)
42 {
43 short *sto = to;
44 const short *sfrom = from;
45 *sto++ = *sfrom++;
46 to = sto;
47 from = sfrom;
48 }
49 if (n & 1)
50 {
51 char *cto = to;
52 const char *cfrom = from;
53 *cto = *cfrom;
54 }
55 return xto;
56#else
57 const char *c_from = from;
58 char *c_to = to;
59 while (n-- > 0)
60 *c_to++ = *c_from++;
61 return((void *) to);
62#endif
63}
diff --git a/arch/m68knommu/lib/memset.c b/arch/m68knommu/lib/memset.c
new file mode 100644
index 000000000000..1389bf455633
--- /dev/null
+++ b/arch/m68knommu/lib/memset.c
@@ -0,0 +1,47 @@
1#include <linux/types.h>
2
3void * memset(void * s, int c, size_t count)
4{
5 void *xs = s;
6 size_t temp;
7
8 if (!count)
9 return xs;
10 c &= 0xff;
11 c |= c << 8;
12 c |= c << 16;
13 if ((long) s & 1)
14 {
15 char *cs = s;
16 *cs++ = c;
17 s = cs;
18 count--;
19 }
20 if (count > 2 && (long) s & 2)
21 {
22 short *ss = s;
23 *ss++ = c;
24 s = ss;
25 count -= 2;
26 }
27 temp = count >> 2;
28 if (temp)
29 {
30 long *ls = s;
31 for (; temp; temp--)
32 *ls++ = c;
33 s = ls;
34 }
35 if (count & 2)
36 {
37 short *ss = s;
38 *ss++ = c;
39 s = ss;
40 }
41 if (count & 1)
42 {
43 char *cs = s;
44 *cs = c;
45 }
46 return xs;
47}
diff --git a/arch/m68knommu/lib/modsi3.S b/arch/m68knommu/lib/modsi3.S
new file mode 100644
index 000000000000..ef3849435768
--- /dev/null
+++ b/arch/m68knommu/lib/modsi3.S
@@ -0,0 +1,113 @@
1/* libgcc1 routines for 68000 w/o floating-point hardware.
2 Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc.
3
4This file is part of GNU CC.
5
6GNU CC is free software; you can redistribute it and/or modify it
7under the terms of the GNU General Public License as published by the
8Free Software Foundation; either version 2, or (at your option) any
9later version.
10
11In addition to the permissions in the GNU General Public License, the
12Free Software Foundation gives you unlimited permission to link the
13compiled version of this file with other programs, and to distribute
14those programs without any restriction coming from the use of this
15file. (The General Public License restrictions do apply in other
16respects; for example, they cover modification of the file, and
17distribution when not linked into another program.)
18
19This file is distributed in the hope that it will be useful, but
20WITHOUT ANY WARRANTY; without even the implied warranty of
21MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22General Public License for more details.
23
24You should have received a copy of the GNU General Public License
25along with this program; see the file COPYING. If not, write to
26the Free Software Foundation, 59 Temple Place - Suite 330,
27Boston, MA 02111-1307, USA. */
28
29/* As a special exception, if you link this library with files
30 compiled with GCC to produce an executable, this does not cause
31 the resulting executable to be covered by the GNU General Public License.
32 This exception does not however invalidate any other reasons why
33 the executable file might be covered by the GNU General Public License. */
34
35/* Use this one for any 680x0; assumes no floating point hardware.
36 The trailing " '" appearing on some lines is for ANSI preprocessors. Yuk.
37 Some of this code comes from MINIX, via the folks at ericsson.
38 D. V. Henkel-Wallace (gumby@cygnus.com) Fete Bastille, 1992
39*/
40
41/* These are predefined by new versions of GNU cpp. */
42
43#ifndef __USER_LABEL_PREFIX__
44#define __USER_LABEL_PREFIX__ _
45#endif
46
47#ifndef __REGISTER_PREFIX__
48#define __REGISTER_PREFIX__
49#endif
50
51#ifndef __IMMEDIATE_PREFIX__
52#define __IMMEDIATE_PREFIX__ #
53#endif
54
55/* ANSI concatenation macros. */
56
57#define CONCAT1(a, b) CONCAT2(a, b)
58#define CONCAT2(a, b) a ## b
59
60/* Use the right prefix for global labels. */
61
62#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
63
64/* Use the right prefix for registers. */
65
66#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)
67
68/* Use the right prefix for immediate values. */
69
70#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__, x)
71
72#define d0 REG (d0)
73#define d1 REG (d1)
74#define d2 REG (d2)
75#define d3 REG (d3)
76#define d4 REG (d4)
77#define d5 REG (d5)
78#define d6 REG (d6)
79#define d7 REG (d7)
80#define a0 REG (a0)
81#define a1 REG (a1)
82#define a2 REG (a2)
83#define a3 REG (a3)
84#define a4 REG (a4)
85#define a5 REG (a5)
86#define a6 REG (a6)
87#define fp REG (fp)
88#define sp REG (sp)
89
90 .text
91 .proc
92 .globl SYM (__modsi3)
93SYM (__modsi3):
94 movel sp@(8), d1 /* d1 = divisor */
95 movel sp@(4), d0 /* d0 = dividend */
96 movel d1, sp@-
97 movel d0, sp@-
98 jbsr SYM (__divsi3)
99 addql IMM (8), sp
100 movel sp@(8), d1 /* d1 = divisor */
101#if !(defined(__mcf5200__) || defined(__mcoldfire__))
102 movel d1, sp@-
103 movel d0, sp@-
104 jbsr SYM (__mulsi3) /* d0 = (a/b)*b */
105 addql IMM (8), sp
106#else
107 mulsl d1,d0
108#endif
109 movel sp@(4), d1 /* d1 = dividend */
110 subl d0, d1 /* d1 = a - (a/b)*b */
111 movel d1, d0
112 rts
113
diff --git a/arch/m68knommu/lib/muldi3.c b/arch/m68knommu/lib/muldi3.c
new file mode 100644
index 000000000000..34af72c30303
--- /dev/null
+++ b/arch/m68knommu/lib/muldi3.c
@@ -0,0 +1,86 @@
1/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
2 gcc-2.7.2.3/longlong.h which is: */
3/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
4
5This file is part of GNU CC.
6
7GNU CC is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2, or (at your option)
10any later version.
11
12GNU CC is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with GNU CC; see the file COPYING. If not, write to
19the Free Software Foundation, 59 Temple Place - Suite 330,
20Boston, MA 02111-1307, USA. */
21
22#define BITS_PER_UNIT 8
23#define SI_TYPE_SIZE 32
24
25#define __BITS4 (SI_TYPE_SIZE / 4)
26#define __ll_B (1L << (SI_TYPE_SIZE / 2))
27#define __ll_lowpart(t) ((USItype) (t) % __ll_B)
28#define __ll_highpart(t) ((USItype) (t) / __ll_B)
29
30#define umul_ppmm(w1, w0, u, v) \
31 do { \
32 USItype __x0, __x1, __x2, __x3; \
33 USItype __ul, __vl, __uh, __vh; \
34 \
35 __ul = __ll_lowpart (u); \
36 __uh = __ll_highpart (u); \
37 __vl = __ll_lowpart (v); \
38 __vh = __ll_highpart (v); \
39 \
40 __x0 = (USItype) __ul * __vl; \
41 __x1 = (USItype) __ul * __vh; \
42 __x2 = (USItype) __uh * __vl; \
43 __x3 = (USItype) __uh * __vh; \
44 \
45 __x1 += __ll_highpart (__x0);/* this can't give carry */ \
46 __x1 += __x2; /* but this indeed can */ \
47 if (__x1 < __x2) /* did we get it? */ \
48 __x3 += __ll_B; /* yes, add it in the proper pos. */ \
49 \
50 (w1) = __x3 + __ll_highpart (__x1); \
51 (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
52 } while (0)
53
54#define __umulsidi3(u, v) \
55 ({DIunion __w; \
56 umul_ppmm (__w.s.high, __w.s.low, u, v); \
57 __w.ll; })
58
59typedef int SItype __attribute__ ((mode (SI)));
60typedef unsigned int USItype __attribute__ ((mode (SI)));
61typedef int DItype __attribute__ ((mode (DI)));
62typedef int word_type __attribute__ ((mode (__word__)));
63
64struct DIstruct {SItype high, low;};
65
66typedef union
67{
68 struct DIstruct s;
69 DItype ll;
70} DIunion;
71
72DItype
73__muldi3 (DItype u, DItype v)
74{
75 DIunion w;
76 DIunion uu, vv;
77
78 uu.ll = u,
79 vv.ll = v;
80
81 w.ll = __umulsidi3 (uu.s.low, vv.s.low);
82 w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
83 + (USItype) uu.s.high * (USItype) vv.s.low);
84
85 return w.ll;
86}
diff --git a/arch/m68knommu/lib/mulsi3.S b/arch/m68knommu/lib/mulsi3.S
new file mode 100644
index 000000000000..ce29ea37b45f
--- /dev/null
+++ b/arch/m68knommu/lib/mulsi3.S
@@ -0,0 +1,110 @@
1/* libgcc1 routines for 68000 w/o floating-point hardware.
2 Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc.
3
4This file is part of GNU CC.
5
6GNU CC is free software; you can redistribute it and/or modify it
7under the terms of the GNU General Public License as published by the
8Free Software Foundation; either version 2, or (at your option) any
9later version.
10
11In addition to the permissions in the GNU General Public License, the
12Free Software Foundation gives you unlimited permission to link the
13compiled version of this file with other programs, and to distribute
14those programs without any restriction coming from the use of this
15file. (The General Public License restrictions do apply in other
16respects; for example, they cover modification of the file, and
17distribution when not linked into another program.)
18
19This file is distributed in the hope that it will be useful, but
20WITHOUT ANY WARRANTY; without even the implied warranty of
21MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22General Public License for more details.
23
24You should have received a copy of the GNU General Public License
25along with this program; see the file COPYING. If not, write to
26the Free Software Foundation, 59 Temple Place - Suite 330,
27Boston, MA 02111-1307, USA. */
28
29/* As a special exception, if you link this library with files
30 compiled with GCC to produce an executable, this does not cause
31 the resulting executable to be covered by the GNU General Public License.
32 This exception does not however invalidate any other reasons why
33 the executable file might be covered by the GNU General Public License. */
34
35/* Use this one for any 680x0; assumes no floating point hardware.
36 The trailing " '" appearing on some lines is for ANSI preprocessors. Yuk.
37 Some of this code comes from MINIX, via the folks at ericsson.
38 D. V. Henkel-Wallace (gumby@cygnus.com) Fete Bastille, 1992
39*/
40
41/* These are predefined by new versions of GNU cpp. */
42
43#ifndef __USER_LABEL_PREFIX__
44#define __USER_LABEL_PREFIX__ _
45#endif
46
47#ifndef __REGISTER_PREFIX__
48#define __REGISTER_PREFIX__
49#endif
50
51#ifndef __IMMEDIATE_PREFIX__
52#define __IMMEDIATE_PREFIX__ #
53#endif
54
55/* ANSI concatenation macros. */
56
57#define CONCAT1(a, b) CONCAT2(a, b)
58#define CONCAT2(a, b) a ## b
59
60/* Use the right prefix for global labels. */
61
62#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
63
64/* Use the right prefix for registers. */
65
66#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)
67
68/* Use the right prefix for immediate values. */
69
70#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__, x)
71
72#define d0 REG (d0)
73#define d1 REG (d1)
74#define d2 REG (d2)
75#define d3 REG (d3)
76#define d4 REG (d4)
77#define d5 REG (d5)
78#define d6 REG (d6)
79#define d7 REG (d7)
80#define a0 REG (a0)
81#define a1 REG (a1)
82#define a2 REG (a2)
83#define a3 REG (a3)
84#define a4 REG (a4)
85#define a5 REG (a5)
86#define a6 REG (a6)
87#define fp REG (fp)
88#define sp REG (sp)
89
90 .text
91 .proc
92 .globl SYM (__mulsi3)
93SYM (__mulsi3):
94 movew sp@(4), d0 /* x0 -> d0 */
95 muluw sp@(10), d0 /* x0*y1 */
96 movew sp@(6), d1 /* x1 -> d1 */
97 muluw sp@(8), d1 /* x1*y0 */
98#if !(defined(__mcf5200__) || defined(__mcoldfire__))
99 addw d1, d0
100#else
101 addl d1, d0
102#endif
103 swap d0
104 clrw d0
105 movew sp@(6), d1 /* x1 -> d1 */
106 muluw sp@(10), d1 /* x1*y1 */
107 addl d1, d0
108
109 rts
110
diff --git a/arch/m68knommu/lib/semaphore.S b/arch/m68knommu/lib/semaphore.S
new file mode 100644
index 000000000000..76765362fea6
--- /dev/null
+++ b/arch/m68knommu/lib/semaphore.S
@@ -0,0 +1,67 @@
1/*
2 * linux/arch/m68k/lib/semaphore.S
3 *
4 * Copyright (C) 1996 Linus Torvalds
5 *
6 * m68k version by Andreas Schwab
7 *
8 * MAR/1999 -- modified to support ColdFire (gerg@snapgear.com)
9 */
10
11#include <linux/linkage.h>
12#include <linux/config.h>
13#include <asm/semaphore.h>
14
15/*
16 * "down_failed" is called with the eventual return address
17 * in %a0, and the address of the semaphore in %a1. We need
18 * to increment the number of waiters on the semaphore,
19 * call "__down()", and then eventually return to try again.
20 */
21ENTRY(__down_failed)
22#ifdef CONFIG_COLDFIRE
23 subl #12,%sp
24 moveml %a0/%d0/%d1,(%sp)
25#else
26 moveml %a0/%d0/%d1,-(%sp)
27#endif
28 movel %a1,-(%sp)
29 jbsr __down
30 movel (%sp)+,%a1
31 movel (%sp)+,%d0
32 movel (%sp)+,%d1
33 rts
34
35ENTRY(__down_failed_interruptible)
36 movel %a0,-(%sp)
37 movel %d1,-(%sp)
38 movel %a1,-(%sp)
39 jbsr __down_interruptible
40 movel (%sp)+,%a1
41 movel (%sp)+,%d1
42 rts
43
44ENTRY(__up_wakeup)
45#ifdef CONFIG_COLDFIRE
46 subl #12,%sp
47 moveml %a0/%d0/%d1,(%sp)
48#else
49 moveml %a0/%d0/%d1,-(%sp)
50#endif
51 movel %a1,-(%sp)
52 jbsr __up
53 movel (%sp)+,%a1
54 movel (%sp)+,%d0
55 movel (%sp)+,%d1
56 rts
57
58ENTRY(__down_failed_trylock)
59 movel %a0,-(%sp)
60 movel %d1,-(%sp)
61 movel %a1,-(%sp)
62 jbsr __down_trylock
63 movel (%sp)+,%a1
64 movel (%sp)+,%d1
65 movel (%sp)+,%a0
66 rts
67
diff --git a/arch/m68knommu/lib/udivsi3.S b/arch/m68knommu/lib/udivsi3.S
new file mode 100644
index 000000000000..c424c4a1f0a3
--- /dev/null
+++ b/arch/m68knommu/lib/udivsi3.S
@@ -0,0 +1,162 @@
1/* libgcc1 routines for 68000 w/o floating-point hardware.
2 Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc.
3
4This file is part of GNU CC.
5
6GNU CC is free software; you can redistribute it and/or modify it
7under the terms of the GNU General Public License as published by the
8Free Software Foundation; either version 2, or (at your option) any
9later version.
10
11In addition to the permissions in the GNU General Public License, the
12Free Software Foundation gives you unlimited permission to link the
13compiled version of this file with other programs, and to distribute
14those programs without any restriction coming from the use of this
15file. (The General Public License restrictions do apply in other
16respects; for example, they cover modification of the file, and
17distribution when not linked into another program.)
18
19This file is distributed in the hope that it will be useful, but
20WITHOUT ANY WARRANTY; without even the implied warranty of
21MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22General Public License for more details.
23
24You should have received a copy of the GNU General Public License
25along with this program; see the file COPYING. If not, write to
26the Free Software Foundation, 59 Temple Place - Suite 330,
27Boston, MA 02111-1307, USA. */
28
29/* As a special exception, if you link this library with files
30 compiled with GCC to produce an executable, this does not cause
31 the resulting executable to be covered by the GNU General Public License.
32 This exception does not however invalidate any other reasons why
33 the executable file might be covered by the GNU General Public License. */
34
35/* Use this one for any 680x0; assumes no floating point hardware.
36 The trailing " '" appearing on some lines is for ANSI preprocessors. Yuk.
37 Some of this code comes from MINIX, via the folks at ericsson.
38 D. V. Henkel-Wallace (gumby@cygnus.com) Fete Bastille, 1992
39*/
40
41/* These are predefined by new versions of GNU cpp. */
42
43#ifndef __USER_LABEL_PREFIX__
44#define __USER_LABEL_PREFIX__ _
45#endif
46
47#ifndef __REGISTER_PREFIX__
48#define __REGISTER_PREFIX__
49#endif
50
51#ifndef __IMMEDIATE_PREFIX__
52#define __IMMEDIATE_PREFIX__ #
53#endif
54
55/* ANSI concatenation macros. */
56
57#define CONCAT1(a, b) CONCAT2(a, b)
58#define CONCAT2(a, b) a ## b
59
60/* Use the right prefix for global labels. */
61
62#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
63
64/* Use the right prefix for registers. */
65
66#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)
67
68/* Use the right prefix for immediate values. */
69
70#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__, x)
71
72#define d0 REG (d0)
73#define d1 REG (d1)
74#define d2 REG (d2)
75#define d3 REG (d3)
76#define d4 REG (d4)
77#define d5 REG (d5)
78#define d6 REG (d6)
79#define d7 REG (d7)
80#define a0 REG (a0)
81#define a1 REG (a1)
82#define a2 REG (a2)
83#define a3 REG (a3)
84#define a4 REG (a4)
85#define a5 REG (a5)
86#define a6 REG (a6)
87#define fp REG (fp)
88#define sp REG (sp)
89
90 .text
91 .proc
92 .globl SYM (__udivsi3)
93SYM (__udivsi3):
94#if !(defined(__mcf5200__) || defined(__mcoldfire__))
95 movel d2, sp@-
96 movel sp@(12), d1 /* d1 = divisor */
97 movel sp@(8), d0 /* d0 = dividend */
98
99 cmpl IMM (0x10000), d1 /* divisor >= 2 ^ 16 ? */
100 jcc L3 /* then try next algorithm */
101 movel d0, d2
102 clrw d2
103 swap d2
104 divu d1, d2 /* high quotient in lower word */
105 movew d2, d0 /* save high quotient */
106 swap d0
107 movew sp@(10), d2 /* get low dividend + high rest */
108 divu d1, d2 /* low quotient */
109 movew d2, d0
110 jra L6
111
112L3: movel d1, d2 /* use d2 as divisor backup */
113L4: lsrl IMM (1), d1 /* shift divisor */
114 lsrl IMM (1), d0 /* shift dividend */
115 cmpl IMM (0x10000), d1 /* still divisor >= 2 ^ 16 ? */
116 jcc L4
117 divu d1, d0 /* now we have 16 bit divisor */
118 andl IMM (0xffff), d0 /* mask out divisor, ignore remainder */
119
120/* Multiply the 16 bit tentative quotient with the 32 bit divisor. Because of
121 the operand ranges, this might give a 33 bit product. If this product is
122 greater than the dividend, the tentative quotient was too large. */
123 movel d2, d1
124 mulu d0, d1 /* low part, 32 bits */
125 swap d2
126 mulu d0, d2 /* high part, at most 17 bits */
127 swap d2 /* align high part with low part */
128 tstw d2 /* high part 17 bits? */
129 jne L5 /* if 17 bits, quotient was too large */
130 addl d2, d1 /* add parts */
131 jcs L5 /* if sum is 33 bits, quotient was too large */
132 cmpl sp@(8), d1 /* compare the sum with the dividend */
133 jls L6 /* if sum > dividend, quotient was too large */
134L5: subql IMM (1), d0 /* adjust quotient */
135
136L6: movel sp@+, d2
137 rts
138
139#else /* __mcf5200__ || __mcoldfire__ */
140
141/* Coldfire implementation of non-restoring division algorithm from
142 Hennessy & Patterson, Appendix A. */
143 link a6,IMM (-12)
144 moveml d2-d4,sp@
145 movel a6@(8),d0
146 movel a6@(12),d1
147 clrl d2 | clear p
148 moveq IMM (31),d4
149L1: addl d0,d0 | shift reg pair (p,a) one bit left
150 addxl d2,d2
151 movl d2,d3 | subtract b from p, store in tmp.
152 subl d1,d3
153 jcs L2 | if no carry,
154 bset IMM (0),d0 | set the low order bit of a to 1,
155 movl d3,d2 | and store tmp in p.
156L2: subql IMM (1),d4
157 jcc L1
158 moveml sp@,d2-d4 | restore data registers
159 unlk a6 | and return
160 rts
161#endif /* __mcf5200__ || __mcoldfire__ */
162
diff --git a/arch/m68knommu/lib/umodsi3.S b/arch/m68knommu/lib/umodsi3.S
new file mode 100644
index 000000000000..5def5f626478
--- /dev/null
+++ b/arch/m68knommu/lib/umodsi3.S
@@ -0,0 +1,113 @@
1/* libgcc1 routines for 68000 w/o floating-point hardware.
2 Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc.
3
4This file is part of GNU CC.
5
6GNU CC is free software; you can redistribute it and/or modify it
7under the terms of the GNU General Public License as published by the
8Free Software Foundation; either version 2, or (at your option) any
9later version.
10
11In addition to the permissions in the GNU General Public License, the
12Free Software Foundation gives you unlimited permission to link the
13compiled version of this file with other programs, and to distribute
14those programs without any restriction coming from the use of this
15file. (The General Public License restrictions do apply in other
16respects; for example, they cover modification of the file, and
17distribution when not linked into another program.)
18
19This file is distributed in the hope that it will be useful, but
20WITHOUT ANY WARRANTY; without even the implied warranty of
21MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22General Public License for more details.
23
24You should have received a copy of the GNU General Public License
25along with this program; see the file COPYING. If not, write to
26the Free Software Foundation, 59 Temple Place - Suite 330,
27Boston, MA 02111-1307, USA. */
28
29/* As a special exception, if you link this library with files
30 compiled with GCC to produce an executable, this does not cause
31 the resulting executable to be covered by the GNU General Public License.
32 This exception does not however invalidate any other reasons why
33 the executable file might be covered by the GNU General Public License. */
34
35/* Use this one for any 680x0; assumes no floating point hardware.
36 The trailing " '" appearing on some lines is for ANSI preprocessors. Yuk.
37 Some of this code comes from MINIX, via the folks at ericsson.
38 D. V. Henkel-Wallace (gumby@cygnus.com) Fete Bastille, 1992
39*/
40
41/* These are predefined by new versions of GNU cpp. */
42
43#ifndef __USER_LABEL_PREFIX__
44#define __USER_LABEL_PREFIX__ _
45#endif
46
47#ifndef __REGISTER_PREFIX__
48#define __REGISTER_PREFIX__
49#endif
50
51#ifndef __IMMEDIATE_PREFIX__
52#define __IMMEDIATE_PREFIX__ #
53#endif
54
55/* ANSI concatenation macros. */
56
57#define CONCAT1(a, b) CONCAT2(a, b)
58#define CONCAT2(a, b) a ## b
59
60/* Use the right prefix for global labels. */
61
62#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
63
64/* Use the right prefix for registers. */
65
66#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)
67
68/* Use the right prefix for immediate values. */
69
70#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__, x)
71
72#define d0 REG (d0)
73#define d1 REG (d1)
74#define d2 REG (d2)
75#define d3 REG (d3)
76#define d4 REG (d4)
77#define d5 REG (d5)
78#define d6 REG (d6)
79#define d7 REG (d7)
80#define a0 REG (a0)
81#define a1 REG (a1)
82#define a2 REG (a2)
83#define a3 REG (a3)
84#define a4 REG (a4)
85#define a5 REG (a5)
86#define a6 REG (a6)
87#define fp REG (fp)
88#define sp REG (sp)
89
90 .text
91 .proc
92 .globl SYM (__umodsi3)
93SYM (__umodsi3):
94 movel sp@(8), d1 /* d1 = divisor */
95 movel sp@(4), d0 /* d0 = dividend */
96 movel d1, sp@-
97 movel d0, sp@-
98 jbsr SYM (__udivsi3)
99 addql IMM (8), sp
100 movel sp@(8), d1 /* d1 = divisor */
101#if !(defined(__mcf5200__) || defined(__mcoldfire__))
102 movel d1, sp@-
103 movel d0, sp@-
104 jbsr SYM (__mulsi3) /* d0 = (a/b)*b */
105 addql IMM (8), sp
106#else
107 mulsl d1,d0
108#endif
109 movel sp@(4), d1 /* d1 = dividend */
110 subl d0, d1 /* d1 = a - (a/b)*b */
111 movel d1, d0
112 rts
113
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-10 08:14:59 -0400