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Attempt to capture MVP and MVN in their entirety.
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069a057a94
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@ -35,12 +35,12 @@ struct BusHandler: public CPU::MOS6502Esque::BusHandler<uint32_t> {
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auto ram_value = ram.find(address);
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switch(operation) {
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case BusOperation::ReadOpcode:
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--opcodes_remaining;
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if(!opcodes_remaining) {
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if(initial_pc && *initial_pc != address) {
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cycles.pop_back();
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pc_overshoot = -1;
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throw StopException();
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}
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initial_pc = address;
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case BusOperation::Read:
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case BusOperation::ReadProgram:
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case BusOperation::ReadVector:
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@ -61,6 +61,10 @@ struct BusHandler: public CPU::MOS6502Esque::BusHandler<uint32_t> {
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throw StopException();
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break;
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case BusOperation::InternalOperationRead:
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case BusOperation::InternalOperationWrite:
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break;
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default: assert(false);
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}
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@ -73,6 +77,7 @@ struct BusHandler: public CPU::MOS6502Esque::BusHandler<uint32_t> {
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inventions.clear();
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cycles.clear();
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pc_overshoot = 0;
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initial_pc = std::nullopt;
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using Register = CPU::MOS6502Esque::Register;
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const uint32_t pc =
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@ -81,8 +86,8 @@ struct BusHandler: public CPU::MOS6502Esque::BusHandler<uint32_t> {
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inventions[pc] = ram[pc] = opcode;
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}
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int opcodes_remaining = 0;
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int pc_overshoot = 0;
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std::optional<uint32_t> initial_pc;
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struct Cycle {
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CPU::MOS6502Esque::BusOperation operation;
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@ -185,7 +190,6 @@ void print_ram(FILE *file, const std::unordered_map<uint32_t, uint8_t> &data) {
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print_registers(target, handler.processor, 0);
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// Run to the second opcode fetch.
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handler.opcodes_remaining = 2;
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try {
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handler.processor.run_for(Cycles(100));
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} catch (const StopException &) {}
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