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-rw-r--r--sysdeps/m68k/m68020/mul_1.S87
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diff --git a/sysdeps/m68k/m68020/mul_1.S b/sysdeps/m68k/m68020/mul_1.S
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--- a/sysdeps/m68k/m68020/mul_1.S
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-/* mc68020 __mpn_mul_1 -- Multiply a limb vector with a limb and store
- the result in a second limb vector.
-
-Copyright (C) 1992, 1994, 1996, 1998 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, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
-MA 02111-1307, USA. */
-
-/*
- INPUT PARAMETERS
- res_ptr (sp + 4)
- s1_ptr (sp + 8)
- s1_size (sp + 12)
- s2_limb (sp + 16)
-*/
-
-#include "sysdep.h"
-#include "asm-syntax.h"
-
- TEXT
-ENTRY(__mpn_mul_1)
-
-#define res_ptr a0
-#define s1_ptr a1
-#define s1_size d2
-#define s2_limb d4
-
-/* Save used registers on the stack. */
- moveml R(d2)-R(d4),MEM_PREDEC(sp)
-#if 0
- movel R(d2),MEM_PREDEC(sp)
- movel R(d3),MEM_PREDEC(sp)
- movel R(d4),MEM_PREDEC(sp)
-#endif
-
-/* Copy the arguments to registers. Better use movem? */
- movel MEM_DISP(sp,16),R(res_ptr)
- movel MEM_DISP(sp,20),R(s1_ptr)
- movel MEM_DISP(sp,24),R(s1_size)
- movel MEM_DISP(sp,28),R(s2_limb)
-
- eorw #1,R(s1_size)
- clrl R(d1)
- lsrl #1,R(s1_size)
- bcc L(L1)
- subql #1,R(s1_size)
- subl R(d0),R(d0) /* (d0,cy) <= (0,0) */
-
-L(Loop:)
- movel MEM_POSTINC(s1_ptr),R(d3)
- mulul R(s2_limb),R(d1):R(d3)
- addxl R(d0),R(d3)
- movel R(d3),MEM_POSTINC(res_ptr)
-L(L1:) movel MEM_POSTINC(s1_ptr),R(d3)
- mulul R(s2_limb),R(d0):R(d3)
- addxl R(d1),R(d3)
- movel R(d3),MEM_POSTINC(res_ptr)
-
- dbf R(s1_size),L(Loop)
- clrl R(d3)
- addxl R(d3),R(d0)
- subl #0x10000,R(s1_size)
- bcc L(Loop)
-
-/* Restore used registers from stack frame. */
- moveml MEM_POSTINC(sp),R(d2)-R(d4)
-#if 0
- movel MEM_POSTINC(sp),R(d4)
- movel MEM_POSTINC(sp),R(d3)
- movel MEM_POSTINC(sp),R(d2)
-#endif
- rts
-END(__mpn_mul_1)