Commit | Line | Data |
---|---|---|
1394f032 | 1 | /* |
96f1050d | 2 | * libgcc1 routines for Blackfin 5xx |
1394f032 | 3 | * |
96f1050d | 4 | * Copyright 2004-2009 Analog Devices Inc. |
1394f032 | 5 | * |
de450838 | 6 | * Licensed under the Clear BSD license or the GPL-2 (or later) |
1394f032 BW |
7 | */ |
8 | ||
9 | #ifdef CONFIG_ARITHMETIC_OPS_L1 | |
10 | .section .l1.text | |
11 | #else | |
12 | .text | |
13 | #endif | |
14 | ||
15 | .extern ___udivsi3; | |
51be24c3 | 16 | .type ___udivsi3, STT_FUNC; |
1394f032 | 17 | .globl ___umodsi3 |
51be24c3 | 18 | .type ___umodsi3, STT_FUNC; |
1394f032 BW |
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; | |
51be24c3 MF |
48 | |
49 | .size ___umodsi3, .-___umodsi3 |