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authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/sysdeps/i386/mul_1.S
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
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Prepare for radical source tree reorganization.zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/sysdeps/i386/mul_1.S')
-rw-r--r--REORG.TODO/sysdeps/i386/mul_1.S86
1 files changed, 86 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/i386/mul_1.S b/REORG.TODO/sysdeps/i386/mul_1.S
new file mode 100644
index 0000000000..cf83d1b343
--- /dev/null
+++ b/REORG.TODO/sysdeps/i386/mul_1.S
@@ -0,0 +1,86 @@
+/* i80386 __mpn_mul_1 -- Multiply a limb vector with a limb and store
+ the result in a second limb vector.
+ Copyright (C) 1992-2017 Free Software Foundation, Inc.
+ This file is part of the GNU MP Library.
+
+ The GNU MP Library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or (at your
+ option) any later version.
+
+ The GNU MP 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 Lesser General Public
+ License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with the GNU MP Library; see the file COPYING.LIB. If not,
+ see <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+#include "asm-syntax.h"
+
+#define PARMS 4+16 /* space for 4 saved regs */
+#define RES PARMS
+#define S1 RES+4
+#define SIZE S1+4
+#define S2LIMB SIZE+4
+
+#define res_ptr edi
+#define s1_ptr esi
+#define size ecx
+#define s2_limb ebx
+
+ .text
+ENTRY (__mpn_mul_1)
+
+ pushl %res_ptr
+ cfi_adjust_cfa_offset (4)
+ pushl %s1_ptr
+ cfi_adjust_cfa_offset (4)
+ pushl %ebp
+ cfi_adjust_cfa_offset (4)
+ pushl %s2_limb
+ cfi_adjust_cfa_offset (4)
+
+ movl RES(%esp), %res_ptr
+ cfi_rel_offset (res_ptr, 12)
+ movl S1(%esp), %s1_ptr
+ cfi_rel_offset (s1_ptr, 8)
+ movl SIZE(%esp), %size
+ movl S2LIMB(%esp), %s2_limb
+ cfi_rel_offset (s2_limb, 0)
+ leal (%res_ptr,%size,4), %res_ptr
+ leal (%s1_ptr,%size,4), %s1_ptr
+ negl %size
+ xorl %ebp, %ebp
+ cfi_rel_offset (ebp, 4)
+ ALIGN (3)
+L(oop):
+ movl (%s1_ptr,%size,4), %eax
+ mull %s2_limb
+ addl %ebp, %eax
+ movl %eax, (%res_ptr,%size,4)
+ adcl $0, %edx
+ movl %edx, %ebp
+
+ incl %size
+ jnz L(oop)
+ movl %ebp, %eax
+
+ popl %s2_limb
+ cfi_adjust_cfa_offset (-4)
+ cfi_restore (s2_limb)
+ popl %ebp
+ cfi_adjust_cfa_offset (-4)
+ cfi_restore (ebp)
+ popl %s1_ptr
+ cfi_adjust_cfa_offset (-4)
+ cfi_restore (s1_ptr)
+ popl %res_ptr
+ cfi_adjust_cfa_offset (-4)
+ cfi_restore (res_ptr)
+
+ ret
+#undef size
+END (__mpn_mul_1)