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implemented real WAIT (really wait for interrupts)

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folkert van heusden 2023-03-26 13:16:59 +02:00
parent ce1114a159
commit 9bba033dbc
Signed by untrusted user who does not match committer: folkert
GPG key ID: 6B6455EDFEED3BD1
2 changed files with 14 additions and 2 deletions
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10
cpu.cpp
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@ -289,6 +289,8 @@ void cpu::queue_interrupt(const uint8_t level, const uint8_t vector)
it->second.insert(vector);
qi_cv.notify_all();
DOLOG(debug, true, "Queueing interrupt vector %o (IPL %d, current: %d), n: %zu", vector, level, getPSW_spl(), it->second.size());
}
@ -1485,6 +1487,14 @@ bool cpu::misc_operations(const uint16_t instr)
return true;
case 0b0000000000000001: // WAIT
{
std::unique_lock<std::mutex> lck(qi_lock);
qi_cv.wait(lck);
}
DOLOG(debug, false, "WAIT returned");
return true;
case 0b0000000000000010: // RTI

4
cpu.h
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@ -1,8 +1,9 @@
// (C) 2018-2022 by Folkert van Heusden
// (C) 2018-2023 by Folkert van Heusden
// Released under Apache License v2.0
#pragma once
#include <assert.h>
#include <condition_variable>
#include <map>
#include <mutex>
#include <optional>
@ -40,6 +41,7 @@ private:
// level, vector
std::map<uint8_t, std::set<uint8_t> > queued_interrupts;
std::mutex qi_lock;
std::condition_variable qi_cv;
std::set<uint16_t> breakpoints;