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Diffstat (limited to 'gcc/config/arc/lib1funcs.asm')
| -rwxr-xr-x | gcc/config/arc/lib1funcs.asm | 273 |
1 files changed, 0 insertions, 273 deletions
diff --git a/gcc/config/arc/lib1funcs.asm b/gcc/config/arc/lib1funcs.asm deleted file mode 100755 index a2d509a..0000000 --- a/gcc/config/arc/lib1funcs.asm +++ /dev/null @@ -1,273 +0,0 @@ -; libgcc1 routines for ARC cpu. - -/* Copyright (C) 1995, 1997 Free Software Foundation, Inc. - -This file is free software; you can redistribute it and/or modify it -under the terms of the GNU General Public License as published by the -Free Software Foundation; either version 2, or (at your option) any -later version. - -In addition to the permissions in the GNU General Public License, the -Free Software Foundation gives you unlimited permission to link the -compiled version of this file with other programs, and to distribute -those programs without any restriction coming from the use of this -file. (The General Public License restrictions do apply in other -respects; for example, they cover modification of the file, and -distribution when not linked into another program.) - -This file 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 -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* As a special exception, if you link this library with other files, - some of which are compiled with GCC, to produce an executable, - this library does not by itself cause the resulting executable - to be covered by the GNU General Public License. - This exception does not however invalidate any other reasons why - the executable file might be covered by the GNU General Public License. */ - -#ifdef L_mulsi3 - .section .text - .align 4 - -#ifdef __base__ - .cpu base - .global ___mulsi3 -___mulsi3: - -/* This the simple version. - - while (a) - { - if (a & 1) - r += b; - a >>= 1; - b <<= 1; - } -*/ - mov r2,0 ; Accumulate result here. -.Lloop: - sub.f 0,r0,0 ; while (a) - nop - beq.nd .Ldone - and.f 0,r0,1 ; if (a & 1) - add.nz r2,r2,r1 ; r += b - lsr r0,r0 ; a >>= 1 - b.d .Lloop - lsl r1,r1 ; b <<= 1 -.Ldone: - j.d blink - mov r0,r2 -#endif - -#endif /* L_mulsi3 */ - -#ifdef L_umulsidi3 - .section .text - .align 4 - -#ifdef __base__ - .cpu base - .global ___umulsidi3 -___umulsidi3: - -/* This the simple version. - - while (a) - { - if (a & 1) - r += b; - a >>= 1; - b <<= 1; - } -*/ - mov r2,0 ; Top part of b. - mov r3,0 ; Accumulate result here. - mov r4,0 -.Lloop: - sub.f 0,r0,0 ; while (a) - nop - beq.nd .Ldone - and.f 0,r0,1 ; if (a & 1) - add.nz r4,r4,r1 ; r += b - adc.nz r3,r3,r2 - lsr r0,r0 ; a >>= 1 - lsl.f r1,r1 ; b <<= 1 - b.d .Lloop - rlc r2,r2 -.Ldone: -#ifdef __big_endian__ - mov r1,r4 - j.d blink - mov r0,r3 -#else - mov r0,r4 - j.d blink - mov r1,r3 -#endif -#endif - -#endif /* L_umulsidi3 */ - -#ifdef L_divmod_tools - -; Utilities used by all routines. - - .section .text - .align 4 - -; inputs: r0 = numerator, r1 = denominator -; outputs: positive r0/r1, -; r6.bit1 = sign of numerator, r6.bit0 = sign of result - - .global ___divnorm -___divnorm: - mov r6,0 ; keep sign in r6 - sub.f 0,r0,0 ; is numerator -ve? - sub.lt r0,0,r0 ; negate numerator - mov.lt r6,3 ; sign is -ve - sub.f 0,r1,0 ; is denominator -ve? - sub.lt r1,0,r1 ; negate denominator - xor.lt r6,r6,1 ; toggle sign - j.nd blink - -/* -unsigned long -udivmodsi4(int modwanted, unsigned long num, unsigned long den) -{ - unsigned long bit = 1; - unsigned long res = 0; - - while (den < num && bit && !(den & (1L<<31))) - { - den <<=1; - bit <<=1; - } - while (bit) - { - if (num >= den) - { - num -= den; - res |= bit; - } - bit >>=1; - den >>=1; - } - if (modwanted) return num; - return res; -} -*/ - -; inputs: r0 = numerator, r1 = denominator -; outputs: r0 = quotient, r1 = remainder, r2/r3 trashed - - .global ___udivmodsi4 -___udivmodsi4: - mov r2,1 ; bit = 1 - mov r3,0 ; res = 0 -.Lloop1: - sub.f 0,r1,r0 ; while (den < num - nop - bnc.nd .Lloop2 - sub.f 0,r2,0 ; && bit - nop - bz.nd .Lloop2 - lsl.f 0,r1 ; && !(den & (1<<31)) - nop - bc.nd .Lloop2 - lsl r1,r1 ; den <<= 1 - b.d .Lloop1 - lsl r2,r2 ; bit <<= 1 -.Lloop2: - sub.f 0,r2,0 ; while (bit) - nop - bz.nd .Ldivmodend - sub.f 0,r0,r1 ; if (num >= den) - nop - bc.nd .Lshiftdown - sub r0,r0,r1 ; num -= den - or r3,r3,r2 ; res |= bit -.Lshiftdown: - lsr r2,r2 ; bit >>= 1 - b.d .Lloop2 - lsr r1,r1 ; den >>= 1 -.Ldivmodend: - mov r1,r0 ; r1 = mod - j.d blink - mov r0,r3 ; r0 = res - -#endif - -#ifdef L_udivsi3 - .section .text - .align 4 - -#ifdef __base__ - .cpu base - .global ___udivsi3 -___udivsi3: - mov r7,blink - bl.nd ___udivmodsi4 - j.nd r7 -#endif - -#endif /* L_udivsi3 */ - -#ifdef L_divsi3 - .section .text - .align 4 - -#ifdef __base__ - .cpu base - .global ___divsi3 -___divsi3: - mov r7,blink - bl.nd ___divnorm - bl.nd ___udivmodsi4 - and.f 0,r6,1 - sub.nz r0,0,r0 ; cannot go in delay slot, has limm value - j.nd r7 -#endif - -#endif /* L_divsi3 */ - -#ifdef L_umodsi3 - .section .text - .align 4 - -#ifdef __base__ - .cpu base - .global ___umodsi3 -___umodsi3: - mov r7,blink - bl.nd ___udivmodsi4 - j.d r7 - mov r0,r1 -#endif - -#endif /* L_umodsi3 */ - -#ifdef L_modsi3 - .section .text - .align 4 - -#ifdef __base__ - .cpu base - .global ___modsi3 -___modsi3: - mov r7,blink - bl.nd ___divnorm - bl.nd ___udivmodsi4 - and.f 0,r6,2 - sub.nz r1,0,r1 - j.d r7 - mov r0,r1 -#endif - -#endif /* L_modsi3 */ |