diff options
Diffstat (limited to 'carl9170fw/carlfw/src/udivsi3_i4i-Os.S')
-rw-r--r-- | carl9170fw/carlfw/src/udivsi3_i4i-Os.S | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/carl9170fw/carlfw/src/udivsi3_i4i-Os.S b/carl9170fw/carlfw/src/udivsi3_i4i-Os.S deleted file mode 100644 index 7bbec4c..0000000 --- a/carl9170fw/carlfw/src/udivsi3_i4i-Os.S +++ /dev/null @@ -1,149 +0,0 @@ -/* Copyright (C) 2006 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 into combinations with other programs, -and to distribute those combinations 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 a combine -executable.) - -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 this program; see the file COPYING. If not, write to -the Free Software Foundation, 51 Franklin Street, Fifth Floor, -Boston, MA 02110-1301, USA. */ - -/* Moderately Space-optimized libgcc routines for the Renesas SH / - STMicroelectronics ST40 CPUs. - Contributed by J"orn Rennecke joern.rennecke@st.com. */ - -/* Size: 186 bytes jointly for udivsi3_i4i and sdivsi3_i4i - sh4-200 run times: - udiv small divisor: 55 cycles - udiv large divisor: 52 cycles - sdiv small divisor, positive result: 59 cycles - sdiv large divisor, positive result: 56 cycles - sdiv small divisor, negative result: 65 cycles (*) - sdiv large divisor, negative result: 62 cycles (*) - (*): r2 is restored in the rts delay slot and has a lingering latency - of two more cycles. */ - .balign 4 - .global ___udivsi3_i4i - .global ___udivsi3_i4 - .set ___udivsi3_i4, ___udivsi3_i4i - .type ___udivsi3_i4i, @function - .type ___sdivsi3_i4i, @function -___udivsi3_i4i: - sts pr,r1 - mov.l r4,@-r15 - extu.w r5,r0 - cmp/eq r5,r0 - swap.w r4,r0 - shlr16 r4 - bf/s large_divisor - div0u - mov.l r5,@-r15 - shll16 r5 -sdiv_small_divisor: - div1 r5,r4 - bsr div6 - div1 r5,r4 - div1 r5,r4 - bsr div6 - div1 r5,r4 - xtrct r4,r0 - xtrct r0,r4 - bsr div7 - swap.w r4,r4 - div1 r5,r4 - bsr div7 - div1 r5,r4 - xtrct r4,r0 - mov.l @r15+,r5 - swap.w r0,r0 - mov.l @r15+,r4 - jmp @r1 - rotcl r0 -div7: - div1 r5,r4 -div6: - div1 r5,r4; div1 r5,r4; div1 r5,r4 - div1 r5,r4; div1 r5,r4; rts; div1 r5,r4 - -divx3: - rotcl r0 - div1 r5,r4 - rotcl r0 - div1 r5,r4 - rotcl r0 - rts - div1 r5,r4 - -large_divisor: - mov.l r5,@-r15 -sdiv_large_divisor: - xor r4,r0 - .rept 4 - rotcl r0 - bsr divx3 - div1 r5,r4 - .endr - mov.l @r15+,r5 - mov.l @r15+,r4 - jmp @r1 - rotcl r0 - - .global __sdivsi3_i4i - .global __sdivsi3_i4 - .global __sdivsi3 - .set __sdivsi3_i4, __sdivsi3_i4i - .set __sdivsi3, __sdivsi3_i4i -__sdivsi3_i4i: - mov.l r4,@-r15 - cmp/pz r5 - mov.l r5,@-r15 - bt/s pos_divisor - cmp/pz r4 - neg r5,r5 - extu.w r5,r0 - bt/s neg_result - cmp/eq r5,r0 - neg r4,r4 -pos_result: - swap.w r4,r0 - bra sdiv_check_divisor - sts pr,r1 -pos_divisor: - extu.w r5,r0 - bt/s pos_result - cmp/eq r5,r0 - neg r4,r4 -neg_result: - mova negate_result,r0 - ; - mov r0,r1 - swap.w r4,r0 - lds r2,macl - sts pr,r2 -sdiv_check_divisor: - shlr16 r4 - bf/s sdiv_large_divisor - div0u - bra sdiv_small_divisor - shll16 r5 - .balign 4 -negate_result: - neg r0,r0 - jmp @r2 - sts macl,r2 |