| ! SPARC v8 __mpn_mul_1 -- Multiply a limb vector with a single limb and |
| ! store the product in a second limb vector. |
| |
| ! Copyright (C) 1992, 1994, 1995 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 o0 |
| ! s1_ptr o1 |
| ! size o2 |
| ! s2_limb o3 |
| |
| #include <sysdep.h> |
| |
| ENTRY(__mpn_mul_1) |
| sll %o2,4,%g1 |
| mov %o7,%g4 ! Save return address register |
| and %g1,(4-1)<<4,%g1 |
| 1: call 2f |
| add %o7,3f-1b,%g3 |
| 2: mov %g4,%o7 ! Restore return address register |
| jmp %g3+%g1 |
| ld [%o1+0],%o4 ! 1 |
| |
| .align 4 |
| 3: |
| LOC(00): |
| add %o0,-4,%o0 |
| add %o1,-4,%o1 |
| b LOC(loop00) /* 4, 8, 12, ... */ |
| orcc %g0,%g0,%g2 |
| LOC(01): |
| b LOC(loop01) /* 1, 5, 9, ... */ |
| orcc %g0,%g0,%g2 |
| nop |
| nop |
| LOC(10): |
| add %o0,-12,%o0 /* 2, 6, 10, ... */ |
| add %o1,4,%o1 |
| b LOC(loop10) |
| orcc %g0,%g0,%g2 |
| nop |
| LOC(11): |
| add %o0,-8,%o0 /* 3, 7, 11, ... */ |
| add %o1,-8,%o1 |
| b LOC(loop11) |
| orcc %g0,%g0,%g2 |
| |
| LOC(loop): |
| addcc %g3,%g2,%g3 ! 1 |
| ld [%o1+4],%o4 ! 2 |
| st %g3,[%o0+0] ! 1 |
| rd %y,%g2 ! 1 |
| LOC(loop00): |
| umul %o4,%o3,%g3 ! 2 |
| addxcc %g3,%g2,%g3 ! 2 |
| ld [%o1+8],%o4 ! 3 |
| st %g3,[%o0+4] ! 2 |
| rd %y,%g2 ! 2 |
| LOC(loop11): |
| umul %o4,%o3,%g3 ! 3 |
| addxcc %g3,%g2,%g3 ! 3 |
| ld [%o1+12],%o4 ! 4 |
| add %o1,16,%o1 |
| st %g3,[%o0+8] ! 3 |
| rd %y,%g2 ! 3 |
| LOC(loop10): |
| umul %o4,%o3,%g3 ! 4 |
| addxcc %g3,%g2,%g3 ! 4 |
| ld [%o1+0],%o4 ! 1 |
| st %g3,[%o0+12] ! 4 |
| add %o0,16,%o0 |
| rd %y,%g2 ! 4 |
| addx %g0,%g2,%g2 |
| LOC(loop01): |
| addcc %o2,-4,%o2 |
| bg LOC(loop) |
| umul %o4,%o3,%g3 ! 1 |
| |
| addcc %g3,%g2,%g3 ! 4 |
| st %g3,[%o0+0] ! 4 |
| rd %y,%g2 ! 4 |
| retl |
| addx %g0,%g2,%o0 |
| |
| END(__mpn_mul_1) |
