diff options
Diffstat (limited to 'arch/blackfin/lib/modsi3.S')
-rw-r--r-- | arch/blackfin/lib/modsi3.S | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/arch/blackfin/lib/modsi3.S b/arch/blackfin/lib/modsi3.S deleted file mode 100644 index bbf4554a5a..0000000000 --- a/arch/blackfin/lib/modsi3.S +++ /dev/null @@ -1,76 +0,0 @@ -/* - * File: arch/blackfin/lib/modsi3.S - * Based on: - * Author: - * - * Created: - * Description: This program computes 32 bit signed remainder. It calls div32 function - * for quotient estimation. - * - * Registers used : - * Numerator/ Denominator in R0, R1 - * R0 - returns remainder. - * R2-R7 - * - * Rev: $Id: modsi3.S 2775 2007-02-21 13:58:44Z hennerich $ - * - * Modified: - * Copyright 2004-2006 Analog Devices Inc. - * - * Bugs: Enter bugs at http://blackfin.uclinux.org/ - * - * This program 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 of the License, or - * (at your option) any later version. - * - * This program 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. - */ - -.global ___modsi3; -.type ___modsi3, STT_FUNC; -.extern ___divsi3; -.type ___divsi3, STT_FUNC; - -#ifdef CONFIG_ARITHMETIC_OPS_L1 -.section .l1.text -#else -.text -#endif - -___modsi3: - - CC=R0==0; - IF CC JUMP .LRETURN_R0; /* Return 0, if numerator == 0 */ - CC=R1==0; - IF CC JUMP .LRETURN_ZERO; /* Return 0, if denominator == 0 */ - CC=R0==R1; - IF CC JUMP .LRETURN_ZERO; /* Return 0, if numerator == denominator */ - CC = R1 == 1; - IF CC JUMP .LRETURN_ZERO; /* Return 0, if denominator == 1 */ - CC = R1 == -1; - IF CC JUMP .LRETURN_ZERO; /* Return 0, if denominator == -1 */ - - /* Valid input. Use __divsi3() to compute the quotient, and then - * derive the remainder from that. */ - - [--SP] = (R7:6); /* Push R7 and R6 */ - [--SP] = RETS; /* and return address */ - R7 = R0; /* Copy of R0 */ - R6 = R1; /* Save for later */ - SP += -12; /* Should always provide this space */ - CALL ___divsi3; /* Compute signed quotient using ___divsi3()*/ - SP += 12; - R0 *= R6; /* Quotient * divisor */ - R0 = R7 - R0; /* Dividend - (quotient * divisor) */ - RETS = [SP++]; /* Get back return address */ - (R7:6) = [SP++]; /* Pop registers R7 and R4 */ - RTS; /* Store remainder */ - -.LRETURN_ZERO: - R0 = 0; -.LRETURN_R0: - RTS; |