Who's let me know what the 'tlm_quantumkeeper' is?

[Beginner_KOR]

HI, 

 

Would you let me know "tlm_quantumkeeper" is?

I saw some source code from the gitHub, tlm_quantumkeeper is used but I don't understand why this util is used now.

It is looks like to be used a synced reset, however, if anyone let me know it details, I am happy to learn systemC more as a beginner.

thanks.

 

[Eyck]

The quantum keeper is used to hold the local time of a time domain in loosly-timed models. E.g. in https://git.minres.com/VP/HIFIVE1-VP/src/branch/master/platform/src/sc_main.cpp#L119 the global quantum is set (the amount of time a time domain is allowed to run ahead). In https://git.minres.com/DBT-RISE/DBT-RISE-RISCV/src/branch/develop/incl/sysc/core_complex.h#L112 the local time is updated (within each instruction) and if the quantum is exceeded, the control is returned to the SystemC kernel (line 114).