Lightemerald/windows-user-space-emulator
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Support accurate instruction counts

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This commit is contained in:
Maurice Heumann
2025-04-04 13:13:09 +02:00
parent 204159f137
commit 24df7c65c2
13 changed files with 27 additions and 60 deletions
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21
src/windows-emulator/windows_emulator.cpp
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@@ -514,15 +514,10 @@ void windows_emulator::setup_hooks()
[&](const uint64_t address, const size_t, const uint64_t) { this->on_instruction_execution(address); });
}
void windows_emulator::start(std::chrono::nanoseconds timeout, size_t count)
void windows_emulator::start(size_t count)
{
const auto use_count = count > 0;
const auto use_timeout = timeout != std::chrono::nanoseconds{};
const auto start_time = std::chrono::high_resolution_clock::now();
const auto start_instructions = this->executed_instructions_;
const auto target_time = start_time + timeout;
const auto target_instructions = start_instructions + count;
while (true)
@@ -532,25 +527,13 @@ void windows_emulator::start(std::chrono::nanoseconds timeout, size_t count)
this->perform_thread_switch();
}
this->emu().start_from_ip(timeout, count);
this->emu().start(count);
if (!this->switch_thread_ && !this->emu().has_violation())
{
break;
}
if (use_timeout)
{
const auto now = std::chrono::high_resolution_clock::now();
if (now >= target_time)
{
break;
}
timeout = target_time - now;
}
if (use_count)
{
const auto current_instructions = this->executed_instructions_;