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clean-up

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folkert van heusden 2022-03-31 22:27:59 +02:00
parent 76bd1ea50a
commit afd84445eb
1 changed files with 2 additions and 41 deletions
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43
main.cpp
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@ -249,59 +249,20 @@ int main(int argc, char *argv[])
sigaction(SIGTERM, &sa, nullptr);
sigaction(SIGINT , &sa, nullptr);
uint32_t icount = 0;
uint64_t total_icount = 0;
uint32_t refresh_interval = 262144;
constexpr uint32_t pdp_11_70_mips = 1000000000 / 300; // 300ns cache
const unsigned long start = get_ms();
unsigned long interval_start = start;
*running = true;
c->emulation_start(); // for statistics
for(;;) {
while(!event && !terminate)
c->step();
if (event)
break;
icount++;
if (icount >= refresh_interval) {
total_icount += icount;
unsigned long now = get_ms();
unsigned long took_ms = std::max(1ul, now - interval_start);
refresh_interval = (1000 * icount) / took_ms;
if (refresh_interval == 0)
refresh_interval = 65536;
else if (refresh_interval > pdp_11_70_mips)
refresh_interval = pdp_11_70_mips;
D(fprintf(stderr, "instructions_executed: %u, took_ms: %lu, new refresh_interval: %u\n", icount, took_ms, refresh_interval);)
if (terminate)
event = 1;
interval_start = now;
icount = 0;
}
}
*running = false;
terminate = true;
delete b;
delete cnsl;
fprintf(stderr, "Instructions per second: %.3f\n\n", total_icount * 1000.0 / (get_ms() - start));
delete b;
return 0;
}