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improved benchmark

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Folkert van Heusden 2025-04-01 08:06:12 +02:00
parent 1d2f3a7a3a
commit 41ef37ce6b
Signed by untrusted user who does not match committer: folkert
GPG key ID: 6B6455EDFEED3BD1
1 changed files with 7 additions and 2 deletions
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9
main.cpp
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@ -679,16 +679,21 @@ int main(int argc, char *argv[])
// FILL MEMORY
memory *m = b->getRAM();
for(uint32_t i=0; i<m->get_memory_size(); i++)
m->write_byte(i, i * 3);
m->write_byte(i, i * 7);
// SET MMU TO ENABLED
b->getMMU()->setMMR0_as_is(1); // enable MMU
// run for a second
b->getCpu()->setPC(0);
b->getCpu()->emulation_start(); // for statistics
uint64_t start = get_us();
do {
// disassemble(b->getCpu(), nullptr, b->getCpu()->getPC(), false);
uint16_t before_pc = b->getCpu()->getPC();
b->getCpu()->step();
if (b->getCpu()->getPC() == before_pc)
b->getCpu()->setPC(before_pc + 4);
}
while(get_us() - start <= 2500000);
while(get_us() - start <= 5000000);
auto stats = b->getCpu()->get_mips_rel_speed({ }, { });
cnsl->put_string_lf(format("MIPS: %.2f, relative speed: %.2f%%, instructions executed: %" PRIu64 " in %.2f seconds", std::get<0>(stats), std::get<1>(stats), std::get<2>(stats), std::get<3>(stats) / 1000000.));