[project @ 1998-06-05 14:37:56 by simonm]

[ghc-hetmet.git] / ghc / rts / gmp / mpn / sparc32 / v8 / addmul_1.S

diff --git a/ghc/rts/gmp/mpn/sparc32/v8/addmul_1.S b/ghc/rts/gmp/mpn/sparc32/v8/addmul_1.S
new file mode 100644 (file)
index 0000000..fb9ea7c
--- /dev/null
+++ b/ghc/rts/gmp/mpn/sparc32/v8/addmul_1.S
@@ -0,0 +1,124 @@
+! SPARC v8 __mpn_addmul_1 -- Multiply a limb vector with a limb and
+! add the result to a second limb vector.
+
+! Copyright (C) 1992, 1993, 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 Library General Public License as published by
+! the Free Software Foundation; either version 2 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 Library General Public
+! License for more details.
+
+! You should have received a copy of the GNU Library 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"
+
+.text
+       .align 4
+       .global C_SYMBOL_NAME(__mpn_addmul_1)
+C_SYMBOL_NAME(__mpn_addmul_1):
+       orcc    %g0,%g0,%g2
+       ld      [%o1+0],%o4     ! 1
+
+       sll     %o2,4,%g1
+       and     %g1,(4-1)<<4,%g1
+#if PIC
+       mov     %o7,%g4                 ! Save return address register
+       call    1f
+       add     %o7,LL-1f,%g3
+1:     mov     %g4,%o7                 ! Restore return address register
+#else
+       sethi   %hi(LL),%g3
+       or      %g3,%lo(LL),%g3
+#endif
+       jmp     %g3+%g1
+       nop
+LL:
+LL00:  add     %o0,-4,%o0
+       b       Loop00          /* 4, 8, 12, ... */
+       add     %o1,-4,%o1
+       nop
+LL01:  b       Loop01          /* 1, 5, 9, ... */
+       nop
+       nop
+       nop
+LL10:  add     %o0,-12,%o0     /* 2, 6, 10, ... */
+       b       Loop10
+       add     %o1,4,%o1
+       nop
+LL11:  add     %o0,-8,%o0      /* 3, 7, 11, ... */
+       b       Loop11
+       add     %o1,-8,%o1
+       nop
+
+1:     addcc   %g3,%g2,%g3     ! 1
+       ld      [%o1+4],%o4     ! 2
+       rd      %y,%g2          ! 1
+       addx    %g0,%g2,%g2
+       ld      [%o0+0],%g1     ! 2
+       addcc   %g1,%g3,%g3
+       st      %g3,[%o0+0]     ! 1
+Loop00:        umul    %o4,%o3,%g3     ! 2
+       ld      [%o0+4],%g1     ! 2
+       addxcc  %g3,%g2,%g3     ! 2
+       ld      [%o1+8],%o4     ! 3
+       rd      %y,%g2          ! 2
+       addx    %g0,%g2,%g2
+       nop
+       addcc   %g1,%g3,%g3
+       st      %g3,[%o0+4]     ! 2
+Loop11:        umul    %o4,%o3,%g3     ! 3
+       addxcc  %g3,%g2,%g3     ! 3
+       ld      [%o1+12],%o4    ! 4
+       rd      %y,%g2          ! 3
+       add     %o1,16,%o1
+       addx    %g0,%g2,%g2
+       ld      [%o0+8],%g1     ! 2
+       addcc   %g1,%g3,%g3
+       st      %g3,[%o0+8]     ! 3
+Loop10:        umul    %o4,%o3,%g3     ! 4
+       addxcc  %g3,%g2,%g3     ! 4
+       ld      [%o1+0],%o4     ! 1
+       rd      %y,%g2          ! 4
+       addx    %g0,%g2,%g2
+       ld      [%o0+12],%g1    ! 2
+       addcc   %g1,%g3,%g3
+       st      %g3,[%o0+12]    ! 4
+       add     %o0,16,%o0
+       addx    %g0,%g2,%g2
+Loop01:        addcc   %o2,-4,%o2
+       bg      1b
+       umul    %o4,%o3,%g3     ! 1
+
+       addcc   %g3,%g2,%g3     ! 4
+       rd      %y,%g2          ! 4
+       addx    %g0,%g2,%g2
+       ld      [%o0+0],%g1     ! 2
+       addcc   %g1,%g3,%g3
+       st      %g3,[%o0+0]     ! 4
+       addx    %g0,%g2,%o0
+
+       retl
+        nop
+
+
+!      umul, ld, addxcc, rd, st
+
+!      umul, ld, addxcc, rd, ld, addcc, st, addx
+