1 files changed, 66 insertions, 0 deletions

diff --git a/arch/blackfin/lib/umodsi3.S b/arch/blackfin/lib/umodsi3.S
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+++ b/arch/blackfin/lib/umodsi3.S
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+/*
+ * File:         arch/blackfin/lib/umodsi3.S
+ * Based on:
+ * Author:
+ *
+ * Created:
+ * Description:  libgcc1 routines for Blackfin 5xx
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifdef CONFIG_ARITHMETIC_OPS_L1
+.section .l1.text
+#else
+.text
+#endif
+
+.extern ___udivsi3;
+.globl  ___umodsi3
+___umodsi3:
+
+        CC=R0==0;
+        IF CC JUMP .LRETURN_R0;         /* Return 0, if NR == 0 */
+        CC= R1==0;
+        IF CC JUMP .LRETURN_ZERO_VAL;   /* Return 0, if DR == 0 */
+        CC=R0==R1;
+        IF CC JUMP .LRETURN_ZERO_VAL;   /* Return 0, if NR == DR */
+        CC = R1 == 1;
+        IF CC JUMP .LRETURN_ZERO_VAL;   /* Return 0, if  DR == 1 */
+        CC = R0<R1 (IU);
+        IF CC JUMP .LRETURN_R0;         /* Return dividend (R0),IF NR<DR */
+
+        [--SP] = (R7:6);                /* Push registers and */
+        [--SP] = RETS;                  /* Return address */
+        R7 = R0;                        /* Copy of R0 */
+        R6 = R1;
+        SP += -12;                      /* Should always provide this space */
+        CALL ___udivsi3;                /* Compute unsigned quotient using ___udiv32()*/
+        SP += 12;
+        R0 *= R6;                       /* Quotient * divisor */
+        R0 = R7 - R0;                   /* Dividend - (quotient * divisor) */
+        RETS = [SP++];                  /* Pop return address */
+        ( R7:6) = [SP++];               /* And registers */
+        RTS;                            /* Return remainder */
+.LRETURN_ZERO_VAL:
+        R0 = 0;
+.LRETURN_R0:
+        RTS;