1/* 2 * libgcc1 routines for Blackfin 5xx 3 * 4 * Copyright 2004-2009 Analog Devices Inc. 5 * 6 * Licensed under the ADI BSD license or the GPL-2 (or later) 7 */ 8 9#ifdef CONFIG_ARITHMETIC_OPS_L1 10.section .l1.text 11#else 12.text 13#endif 14 15.extern ___udivsi3; 16.type ___udivsi3, STT_FUNC; 17.globl ___umodsi3 18.type ___umodsi3, STT_FUNC; 19___umodsi3: 20 21 CC=R0==0; 22 IF CC JUMP .LRETURN_R0; /* Return 0, if NR == 0 */ 23 CC= R1==0; 24 IF CC JUMP .LRETURN_ZERO_VAL; /* Return 0, if DR == 0 */ 25 CC=R0==R1; 26 IF CC JUMP .LRETURN_ZERO_VAL; /* Return 0, if NR == DR */ 27 CC = R1 == 1; 28 IF CC JUMP .LRETURN_ZERO_VAL; /* Return 0, if DR == 1 */ 29 CC = R0<R1 (IU); 30 IF CC JUMP .LRETURN_R0; /* Return dividend (R0),IF NR<DR */ 31 32 [--SP] = (R7:6); /* Push registers and */ 33 [--SP] = RETS; /* Return address */ 34 R7 = R0; /* Copy of R0 */ 35 R6 = R1; 36 SP += -12; /* Should always provide this space */ 37 CALL ___udivsi3; /* Compute unsigned quotient using ___udiv32()*/ 38 SP += 12; 39 R0 *= R6; /* Quotient * divisor */ 40 R0 = R7 - R0; /* Dividend - (quotient * divisor) */ 41 RETS = [SP++]; /* Pop return address */ 42 ( R7:6) = [SP++]; /* And registers */ 43 RTS; /* Return remainder */ 44.LRETURN_ZERO_VAL: 45 R0 = 0; 46.LRETURN_R0: 47 RTS; 48 49.size ___umodsi3, .-___umodsi3 50