ae15a26751
This implementation of _tsc_read returns a 64-bit value that is derived from the 64-bit tick count multiplied by hwcycles per tick, and then it adds the current value from the 32-bit timer. This produces a 64-bit time. There is a bunch of math here, which could be avoided if the CPU is built with Real-Time-Clock option. EM Starter Kit SOCs don't have this. I don't think Arduino 101 does either. See ZEP-1559 Change-Id: I9f846d170246556ac40fe2f45809e457c6375d8c Signed-off-by: Chuck Jordan <cjordan@synopsys.com> |
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| arc | ||
| arm | ||
| nios2 | ||
| riscv32 | ||
| x86 | ||
| xtensa | ||
| cpu.h | ||