| /trunk/kernel/arch/ppc32/include/cycle.h |
|---|
| 37,7 → 37,23 |
| static inline uint64_t get_cycle(void) |
| { |
| return 0; |
| uint32_t lower; |
| uint32_t upper; |
| uint32_t upper2; |
| asm volatile ( |
| "1: mftbu %0\n" |
| "mftb %1\n" |
| "mftbu %2\n" |
| "cmpw %0, %2\n" |
| "bne- 1b\n" |
| : "=r" (upper), |
| "=r" (lower), |
| "=r" (upper2) |
| :: "cr0" |
| ); |
| return ((uint64_t) upper << 32) + (uint64_t) lower; |
| } |
| #endif |