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Commit | Line | Data |
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28f540f4 RM |
1 | /* i80386 __mpn_addmul_1 -- Multiply a limb vector with a limb and add |
2 | the result to a second limb vector. | |
1ad9da69 | 3 | Copyright (C) 1992,1994,1997,1998,2000,2005 Free Software Foundation, Inc. |
5929563f | 4 | This file is part of the GNU MP Library. |
28f540f4 | 5 | |
5929563f | 6 | The GNU MP Library is free software; you can redistribute it and/or modify |
6d84f89a AJ |
7 | it under the terms of the GNU Lesser General Public License as published by |
8 | the Free Software Foundation; either version 2.1 of the License, or (at your | |
5929563f | 9 | option) any later version. |
28f540f4 | 10 | |
5929563f UD |
11 | The GNU MP Library is distributed in the hope that it will be useful, but |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
6d84f89a | 13 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public |
5929563f | 14 | License for more details. |
28f540f4 | 15 | |
6d84f89a | 16 | You should have received a copy of the GNU Lesser General Public License |
5929563f UD |
17 | along with the GNU MP Library; see the file COPYING.LIB. If not, write to |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
19 | MA 02111-1307, USA. */ | |
28f540f4 | 20 | |
28f540f4 RM |
21 | #include "sysdep.h" |
22 | #include "asm-syntax.h" | |
2fc08826 | 23 | #include "bp-sym.h" |
3f02f778 GM |
24 | #include "bp-asm.h" |
25 | ||
26 | #define PARMS LINKAGE+16 /* space for 4 saved regs */ | |
27 | #define RES PARMS | |
28 | #define S1 RES+PTR_SIZE | |
29 | #define SIZE S1+PTR_SIZE | |
30 | #define S2LIMB SIZE+4 | |
28f540f4 RM |
31 | |
32 | #define res_ptr edi | |
33 | #define s1_ptr esi | |
ce37fa88 | 34 | #define sizeP ecx |
f9e7bbce | 35 | #define s2_limb ebx |
28f540f4 | 36 | |
ae828bc6 | 37 | .text |
2fc08826 | 38 | ENTRY (BP_SYM (__mpn_addmul_1)) |
43c81906 | 39 | ENTER |
28f540f4 | 40 | |
a334319f | 41 | pushl %edi |
1ad9da69 | 42 | cfi_adjust_cfa_offset (4) |
a334319f | 43 | pushl %esi |
1ad9da69 | 44 | cfi_adjust_cfa_offset (4) |
43c81906 | 45 | pushl %ebp |
1ad9da69 | 46 | cfi_adjust_cfa_offset (4) |
a334319f | 47 | pushl %ebx |
1ad9da69 | 48 | cfi_adjust_cfa_offset (4) |
28f540f4 | 49 | |
43c81906 | 50 | movl RES(%esp), %res_ptr |
1ad9da69 | 51 | cfi_rel_offset (res_ptr, 12) |
43c81906 | 52 | movl S1(%esp), %s1_ptr |
1ad9da69 | 53 | cfi_rel_offset (s1_ptr, 8) |
43c81906 GM |
54 | movl SIZE(%esp), %sizeP |
55 | movl S2LIMB(%esp), %s2_limb | |
1ad9da69 | 56 | cfi_rel_offset (s2_limb, 0) |
2fc08826 GM |
57 | #if __BOUNDED_POINTERS__ |
58 | shll $2, %sizeP /* convert limbs to bytes */ | |
59 | CHECK_BOUNDS_BOTH_WIDE (%res_ptr, RES(%esp), %sizeP) | |
60 | CHECK_BOUNDS_BOTH_WIDE (%s1_ptr, S1(%esp), %sizeP) | |
2fc08826 GM |
61 | shrl $2, %sizeP |
62 | #endif | |
43c81906 GM |
63 | leal (%res_ptr,%sizeP,4), %res_ptr |
64 | leal (%s1_ptr,%sizeP,4), %s1_ptr | |
65 | negl %sizeP | |
f9e7bbce | 66 | xorl %ebp, %ebp |
1ad9da69 | 67 | cfi_rel_offset (ebp, 4) |
28f540f4 | 68 | ALIGN (3) |
5929563f | 69 | L(oop): |
43c81906 GM |
70 | movl (%s1_ptr,%sizeP,4), %eax |
71 | mull %s2_limb | |
f9e7bbce | 72 | addl %ebp, %eax |
43c81906 GM |
73 | adcl $0, %edx |
74 | addl %eax, (%res_ptr,%sizeP,4) | |
75 | adcl $0, %edx | |
f9e7bbce | 76 | movl %edx, %ebp |
28f540f4 | 77 | |
43c81906 GM |
78 | incl %sizeP |
79 | jnz L(oop) | |
f9e7bbce | 80 | movl %ebp, %eax |
28f540f4 | 81 | |
a334319f | 82 | popl %ebx |
1ad9da69 UD |
83 | cfi_adjust_cfa_offset (-4) |
84 | cfi_restore (ebx) | |
f9e7bbce | 85 | popl %ebp |
1ad9da69 UD |
86 | cfi_adjust_cfa_offset (-4) |
87 | cfi_restore (ebp) | |
a334319f | 88 | popl %esi |
1ad9da69 UD |
89 | cfi_adjust_cfa_offset (-4) |
90 | cfi_restore (esi) | |
a334319f | 91 | popl %edi |
1ad9da69 UD |
92 | cfi_adjust_cfa_offset (-4) |
93 | cfi_restore (edi) | |
43c81906 GM |
94 | |
95 | LEAVE | |
28f540f4 | 96 | ret |
2fc08826 | 97 | END (BP_SYM (__mpn_addmul_1)) |