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◆ main openmsx / src / cpu / BreakPoint.hh
1.3 KiB · C++ · last changed chore(): initial commit 1 month ago source blame history raw
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#ifndef BREAKPOINT_HH
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#define BREAKPOINT_HH
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#include "BreakPointBase.hh"
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#include "CommandException.hh"
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#include "strCat.hh"
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#include <cstdint>
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#include <optional>
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namespace openmsx {
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class BreakPoint final : public BreakPointBase<BreakPoint>
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{
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public:
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	static constexpr std::string_view prefix = "bp#";
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public:
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	[[nodiscard]] std::optional<uint16_t> getAddress() const { return address; }
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	[[nodiscard]] TclObject getAddressString() const { return addrStr; }
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	void setAddress(Interpreter& interp, const TclObject& addr) {
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		addrStr = addr;
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		evaluateAddress(interp);
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	}
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	void evaluateAddress(Interpreter& interp) {
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		try {
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			address = parseAddress(interp);
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		} catch (MSXException&) {
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			address = {};
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		}
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	}
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	[[nodiscard]] std::string parseAddressError(Interpreter& interp) const {
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		try {
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			parseAddress(interp);
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			return {};
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		} catch (MSXException& e) {
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			return e.getMessage();
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		}
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	}
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private:
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	uint16_t parseAddress(Interpreter& interp) const {
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		auto tmp = addrStr.eval(interp).getInt(interp); // may throw
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		if ((tmp < 0) || (tmp > 0xffff)) {
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			throw CommandException("address outside of range 0...0xffff");
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		}
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		return uint16_t(tmp);
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	}
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	TclObject addrStr;
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	std::optional<uint16_t> address; // redundant: calculated from 'addrStr'
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};
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} // namespace openmsx
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#endif