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95 lines
2.2 KiB
C++
95 lines
2.2 KiB
C++
#ifndef INTERPRETER_MATHOPCODES_H_INCLUDED
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#define INTERPRETER_MATHOPCODES_H_INCLUDED
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#include <stdexcept>
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#include <cmath>
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#include "opcodes.hpp"
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#include "runtime.hpp"
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namespace Interpreter
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{
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template<typename T>
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class OpAddInt : public Opcode0
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{
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public:
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void execute (Runtime& runtime) override
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{
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T result = getData<T> (runtime[1]) + getData<T> (runtime[0]);
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runtime.pop();
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getData<T> (runtime[0]) = result;
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}
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};
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template<typename T>
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class OpSubInt : public Opcode0
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{
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public:
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void execute (Runtime& runtime) override
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{
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T result = getData<T> (runtime[1]) - getData<T> (runtime[0]);
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runtime.pop();
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getData<T> (runtime[0]) = result;
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}
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};
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template<typename T>
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class OpMulInt : public Opcode0
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{
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public:
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void execute (Runtime& runtime) override
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{
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T result = getData<T> (runtime[1]) * getData<T> (runtime[0]);
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runtime.pop();
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getData<T> (runtime[0]) = result;
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}
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};
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template<typename T>
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class OpDivInt : public Opcode0
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{
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public:
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void execute (Runtime& runtime) override
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{
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T left = getData<T> (runtime[0]);
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if (left==0)
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throw std::runtime_error ("division by zero");
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T result = getData<T> (runtime[1]) / left;
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runtime.pop();
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getData<T> (runtime[0]) = result;
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}
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};
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template<typename T, typename C>
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class OpCompare : public Opcode0
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{
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public:
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void execute (Runtime& runtime) override
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{
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int result = C() (getData<T> (runtime[1]), getData<T> (runtime[0]));
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runtime.pop();
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runtime[0].mInteger = result;
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}
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};
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}
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#endif
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