| /* libgcc routines for the FR30. |
| Copyright (C) 1998, 1999 Free Software Foundation, Inc. |
| |
| This file is part of GCC. |
| |
| GCC 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. */ |
| |
| .macro FUNC_START name |
| .text |
| .globl __\name |
| .type __\name, @function |
| __\name: |
| .endm |
| |
| .macro FUNC_END name |
| .size __\name, . - __\name |
| .endm |
| |
| .macro DIV_BODY reg number |
| .if \number |
| DIV_BODY \reg, "\number - 1" |
| div1 \reg |
| .endif |
| .endm |
| |
| #ifdef L_udivsi3 |
| FUNC_START udivsi3 |
| ;; Perform an unsiged division of r4 / r5 and place the result in r4. |
| ;; Does not handle overflow yet... |
| mov r4, mdl |
| div0u r5 |
| DIV_BODY r5 32 |
| mov mdl, r4 |
| ret |
| FUNC_END udivsi3 |
| #endif /* L_udivsi3 */ |
| |
| #ifdef L_divsi3 |
| FUNC_START divsi3 |
| ;; Perform a siged division of r4 / r5 and place the result in r4. |
| ;; Does not handle overflow yet... |
| mov r4, mdl |
| div0s r5 |
| DIV_BODY r5 32 |
| div2 r5 |
| div3 |
| div4s |
| mov mdl, r4 |
| ret |
| FUNC_END divsi3 |
| #endif /* L_divsi3 */ |
| |
| #ifdef L_umodsi3 |
| FUNC_START umodsi3 |
| ;; Perform an unsiged division of r4 / r5 and places the remainder in r4. |
| ;; Does not handle overflow yet... |
| mov r4, mdl |
| div0u r5 |
| DIV_BODY r5 32 |
| mov mdh, r4 |
| ret |
| FUNC_END umodsi3 |
| #endif /* L_umodsi3 */ |
| |
| #ifdef L_modsi3 |
| FUNC_START modsi3 |
| ;; Perform a siged division of r4 / r5 and place the remainder in r4. |
| ;; Does not handle overflow yet... |
| mov r4, mdl |
| div0s r5 |
| DIV_BODY r5 32 |
| div2 r5 |
| div3 |
| div4s |
| mov mdh, r4 |
| ret |
| FUNC_END modsi3 |
| #endif /* L_modsi3 */ |
| |
| #ifdef L_negsi2 |
| FUNC_START negsi2 |
| ldi:8 #0, r0 |
| sub r4, r0 |
| mov r0, r4 |
| ret |
| FUNC_END negsi2 |
| #endif /* L_negsi2 */ |
| |
| #ifdef L_one_cmplsi2 |
| FUNC_START one_cmplsi2 |
| ldi:8 #0xff, r0 |
| extsb r0 |
| eor r0, r4 |
| ret |
| FUNC_END one_cmplsi2 |
| #endif /* L_one_cmplsi2 */ |
| |
| |