projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| 04c7d957 | 2 | * unsigned long __xdiv64_32(unsigned long long n, unsigned long d); |
| 1da177e4 LT |
3 | */ |
| 4 | ||
| 5 | #include <linux/linkage.h> | |
| 6 | ||
| 7 | .text | |
| 8 | ENTRY(__xdiv64_32) | |
| 04c7d957 | 9 | #ifdef CONFIG_CPU_LITTLE_ENDIAN |
| 1da177e4 LT |
10 | mov r4, r0 |
| 11 | mov r5, r1 | |
| 12 | #else | |
| 13 | mov r4, r1 | |
| 14 | mov r5, r0 | |
| 15 | #endif | |
| 16 | cmp/hs r6, r1 | |
| 17 | bf.s 1f | |
| 18 | mov #0, r2 | |
| 19 | ||
| 20 | mov r1, r2 | |
| 21 | mov #0, r3 | |
| 22 | div0u | |
| 23 | .rept 32 | |
| 24 | rotcl r2 | |
| 25 | div1 r6, r3 | |
| 26 | .endr | |
| 27 | rotcl r2 | |
| 28 | mul.l r6, r2 | |
| 29 | sts macl, r3 | |
| 30 | sub r3, r1 | |
| 31 | 1: | |
| 32 | div0u | |
| 33 | .rept 32 | |
| 34 | rotcl r0 | |
| 35 | div1 r6, r1 | |
| 36 | .endr | |
| 04c7d957 | 37 | #ifdef CONFIG_CPU_LITTLE_ENDIAN |
| 1da177e4 LT |
38 | mov r2, r1 |
| 39 | rts | |
| 40 | rotcl r0 | |
| 41 | #else | |
| 42 | rotcl r0 | |
| 43 | mov r0, r1 | |
| 44 | rts | |
| 45 | mov r2, r0 | |
| 46 | #endif |