diff options
Diffstat (limited to 'app/abs.c')
| -rw-r--r-- | app/abs.c | 45 |
1 files changed, 36 insertions, 9 deletions
@@ -3,28 +3,55 @@ static uint32_t high_tick; +#define QUARTER (1UL << 29) +#define HALF (1UL << 30) +#define THREE_QUARTERS (HALF+QUARTER) +#define ONE (~(uint32_t)0) uint64_t abs_extend (uint32_t now) { - static uint32_t then; + static int m; + uint64_t ret; - uint64_t ret; + if (!m) { + ret = high_tick; + ret <<= 32; + ret |= now; - if (now < then) - high_tick++; + if ((now>THREE_QUARTERS) &&( now<=ONE)) { + high_tick++; + m=1; + } - then = now; + } else { - ret = high_tick; - ret <<= 32; - ret |= now; + if (now<HALF) { + ret = high_tick; + ret <<= 32; + ret |= now; + } else { + ret = high_tick-1; + ret <<= 32; + ret |= now; + } - return ret; + if ((now>QUARTER) &&( now<HALF)) + m=0; } + return ret; +} + + +void abs_meh(void) +{ +printf("HT %d\n",(int) high_tick); +} + + |