50 lines
1.2 KiB
ArmAsm
50 lines
1.2 KiB
ArmAsm
/*
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* libgcc1 routines for Blackfin 5xx
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*
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* Copyright 2004-2009 Analog Devices Inc.
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*
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* Licensed under the ADI BSD license or the GPL-2 (or later)
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*/
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#ifdef CONFIG_ARITHMETIC_OPS_L1
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.section .l1.text
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#else
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.text
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#endif
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.extern ___udivsi3;
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.type ___udivsi3, STT_FUNC;
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.globl ___umodsi3
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.type ___umodsi3, STT_FUNC;
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___umodsi3:
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CC=R0==0;
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IF CC JUMP .LRETURN_R0; /* Return 0, if NR == 0 */
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CC= R1==0;
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IF CC JUMP .LRETURN_ZERO_VAL; /* Return 0, if DR == 0 */
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CC=R0==R1;
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IF CC JUMP .LRETURN_ZERO_VAL; /* Return 0, if NR == DR */
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CC = R1 == 1;
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IF CC JUMP .LRETURN_ZERO_VAL; /* Return 0, if DR == 1 */
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CC = R0<R1 (IU);
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IF CC JUMP .LRETURN_R0; /* Return dividend (R0),IF NR<DR */
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[--SP] = (R7:6); /* Push registers and */
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[--SP] = RETS; /* Return address */
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R7 = R0; /* Copy of R0 */
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R6 = R1;
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SP += -12; /* Should always provide this space */
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CALL ___udivsi3; /* Compute unsigned quotient using ___udiv32()*/
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SP += 12;
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R0 *= R6; /* Quotient * divisor */
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R0 = R7 - R0; /* Dividend - (quotient * divisor) */
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RETS = [SP++]; /* Pop return address */
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( R7:6) = [SP++]; /* And registers */
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RTS; /* Return remainder */
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.LRETURN_ZERO_VAL:
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R0 = 0;
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.LRETURN_R0:
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RTS;
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.size ___umodsi3, .-___umodsi3
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