Initial commit

instruction.h

@@ -0,0 +1,32 @@
+#pragma once
+#include <cstdint>
+#include <unordered_map>
+#include <vector>
+
+enum class InstType : uint8_t {
+    MOV, MVI, ADD, SUB, LOAD, STORE, AND, OR, XOR, SHF, JMP, JIZ, CALL, RET, SYS, HLT
+};
+
+enum class OperandType {
+    ImmNone, Imm4, Imm8
+};
+
+using BytecodeInstruction = uint16_t;
+
+static std::unordered_map<InstType, std::vector<OperandType>> instructionOperandTypes = {
+    {InstType::MOV, {OperandType::Imm4, OperandType::Imm4, OperandType::Imm4}}
+};
+
+struct Instruction {
+    InstType opcode = InstType::MOV;
+    uint16_t arg1 = 0;
+    uint16_t arg2 = 0;
+    uint16_t arg3 = 0;
+
+    BytecodeInstruction asBytecodeInstruction() const;
+
+    Instruction() = default;
+    Instruction(InstType opcode, uint16_t arg1, uint16_t arg2, uint16_t arg3)
+        : opcode(opcode), arg1(arg1), arg2(arg2), arg3(arg3) {}
+    Instruction(BytecodeInstruction bytecodeInst);
+};