VM basics (#5)

Co-authored-by: Andre Wagner <WagnerAndre@JohnDeere.com>
Reviewed-on: https://192.168.5.48/andre/tyche/pulls/5

src/common/bytearray.hh

@@ -0,0 +1,61 @@
+#ifndef TYCHE_BYTEARRAY_HH
+#define TYCHE_BYTEARRAY_HH
+
+#include <cstdint>
+#include <stdexcept>
+#include <string>
+#include <vector>
+
+namespace tyche {
+
+class ByteArray {
+public:
+    ByteArray() = default;
+    explicit ByteArray(std::vector<uint8_t> data) : data_(std::move(data)) {}
+
+    void set_byte(uint32_t addr, uint8_t byte);
+    void set_uint16(uint32_t addr, uint16_t value);
+    void set_uint32(uint32_t addr, uint32_t value);
+    void set_int8(uint32_t addr, int8_t value);
+    void set_int16(uint32_t addr, int16_t value);
+    void set_int32(uint32_t addr, int32_t value);
+    void set_float(uint32_t addr, float value);
+    void set_string(uint32_t addr, std::string const& str);
+    void set_bytearray(uint32_t addr, ByteArray const& bytearray);
+
+    void append_byte(uint8_t byte)              { set_byte(data_.size(), byte); }
+    void append_uint16(uint16_t value)          { set_uint16(data_.size(), value); }
+    void append_uint32(uint32_t value)          { set_uint32(data_.size(), value); }
+    void append_int8(int8_t value)              { set_int8(data_.size(), value); }
+    void append_int16(int16_t value)            { set_int16(data_.size(), value); }
+    void append_int32(int32_t value)            { set_int32(data_.size(), value); }
+    void append_float(float value)              { set_float(data_.size(), value); }
+    void append_string(std::string const& str)  { set_string(data_.size(), str); }
+    void append_bytearray(ByteArray const& bytearray);
+
+    [[nodiscard]] uint8_t                        get_byte(uint32_t addr) const;
+    [[nodiscard]] uint16_t                       get_uint16(uint32_t addr) const;
+    [[nodiscard]] uint32_t                       get_uint32(uint32_t addr) const;
+    [[nodiscard]] int8_t                         get_int8(uint32_t addr) const;
+    [[nodiscard]] int16_t                        get_int16(uint32_t addr) const;
+    [[nodiscard]] int32_t                        get_int32(uint32_t addr) const;
+    [[nodiscard]] float                          get_float(uint32_t addr) const;
+    [[nodiscard]] std::pair<std::string, size_t> get_string(uint32_t addr) const;
+
+    [[nodiscard]] std::vector<uint8_t> const& data() const { return data_; }
+    [[nodiscard]] size_t size() const { return data_.size(); }
+
+    [[nodiscard]] std::string hexdump() const;
+
+private:
+    std::vector<uint8_t> data_ {};
+};
+
+class BytecodeParsingError : public std::runtime_error {
+public:
+    explicit BytecodeParsingError(std::string const& str) : std::runtime_error(str.c_str()) {}
+};
+
+}
+
+#endif //TYCHE_BYTEARRAY_HH