diff options
Diffstat (limited to 'ports/sysdeps/m68k/m680x0/m68020/mul_1.S')
| -rw-r--r-- | ports/sysdeps/m68k/m680x0/m68020/mul_1.S | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/ports/sysdeps/m68k/m680x0/m68020/mul_1.S b/ports/sysdeps/m68k/m680x0/m68020/mul_1.S deleted file mode 100644 index 67822cd1af..0000000000 --- a/ports/sysdeps/m68k/m680x0/m68020/mul_1.S +++ /dev/null @@ -1,83 +0,0 @@ -/* mc68020 __mpn_mul_1 -- Multiply a limb vector with a limb and store - the result in a second limb vector. - -Copyright (C) 1992-2014 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. If not, see <http://www.gnu.org/licenses/>. */ - -/* - 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) - cfi_adjust_cfa_offset (3*4) - cfi_rel_offset (R(d2), 0) - cfi_rel_offset (R(d3), 4) - cfi_rel_offset (R(d4), 8) - -/* 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) - cfi_adjust_cfa_offset (-3*4) - cfi_restore (R(d2)) - cfi_restore (R(d3)) - cfi_restore (R(d4)) - rts -END(__mpn_mul_1) |