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60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
//
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// Comparative68000.hpp
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// Clock SignalTests
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//
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// Created by Thomas Harte on 29/04/2019.
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// Copyright © 2019 Thomas Harte. All rights reserved.
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//
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#ifndef Comparative68000_hpp
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#define Comparative68000_hpp
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#include <zlib.h>
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#include "68000.hpp"
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class ComparativeBusHandler: public CPU::MC68000::BusHandler {
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public:
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ComparativeBusHandler(const char *trace_name) {
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trace = gzopen(trace_name, "rt");
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}
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~ComparativeBusHandler() {
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gzclose(trace);
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}
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void will_perform(uint32_t address, uint16_t opcode) {
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// Obtain the next line from the trace file.
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char correct_state[300] = "\n";
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gzgets(trace, correct_state, sizeof(correct_state));
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++line_count;
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// Generate state locally.
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const auto state = get_state();
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char local_state[300];
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sprintf(local_state, "%04x: %02x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x\n",
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address,
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state.status,
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state.data[0], state.data[1], state.data[2], state.data[3], state.data[4], state.data[5], state.data[6], state.data[7],
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state.address[0], state.address[1], state.address[2], state.address[3], state.address[4], state.address[5], state.address[6],
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(state.status & 0x2000) ? state.supervisor_stack_pointer : state.user_stack_pointer
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);
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// Check that the two coincide.
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if(strcmp(correct_state, local_state)) {
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fprintf(stderr, "Diverges at line %d\n", line_count);
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fprintf(stderr, "Good: %s", correct_state);
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fprintf(stderr, "Bad: %s", local_state);
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assert(false);
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}
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}
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virtual CPU::MC68000::ProcessorState get_state() = 0;
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private:
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int line_count = 0;
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gzFile trace;
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};
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#endif /* Comparative68000_hpp */
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