Implement stuff

src/operand.cpp

@@ -0,0 +1,86 @@
+/* This file is part of the sirit project.
+ * Copyright (c) 2018 ReinUsesLisp
+ * This software may be used and distributed according to the terms of the GNU
+ * General Public License version 2 or any later version.
+ */
+
+#include <cassert>
+#include "operand.h"
+
+namespace Sirit {
+
+Operand::Operand() {}
+
+Operand::~Operand() = default;
+
+void Operand::Fetch(Stream& stream) const {
+    assert(!"Fetching unimplemented operand");
+}
+
+u16 Operand::GetWordCount() const {
+    assert(!"Fetching unimplemented operand");
+    return 0;
+}
+
+bool Operand::operator==(const Operand& other) const {
+    return false;
+}
+
+bool Operand::operator!=(const Operand& other) const {
+    return !(*this == other);
+}
+
+OperandType Operand::GetType() const {
+    return operand_type;
+}
+
+LiteralInteger::LiteralInteger(u32 integer_)
+    : integer(integer_) {
+    operand_type = OperandType::Integer;
+}
+
+LiteralInteger::~LiteralInteger() = default;
+
+void LiteralInteger::Fetch(Stream& stream) const {
+    stream.Write(integer);
+}
+
+u16 LiteralInteger::GetWordCount() const {
+    return 1;
+}
+
+bool LiteralInteger::operator==(const Operand& other) const {
+    if (operand_type == other.GetType()) {
+        return dynamic_cast<const LiteralInteger&>(other).integer == integer;
+    }
+    return false;
+}
+
+LiteralString::LiteralString(const std::string& string_)
+    : string(string_) {
+    operand_type = OperandType::String;
+}
+
+LiteralString::~LiteralString() = default;
+
+void LiteralString::Fetch(Stream& stream) const {
+    for (std::size_t i{}; i < string.size(); i++) {
+        stream.Write(static_cast<u8>(string[i]));
+    }
+    for (std::size_t i{}; i < 4 - (string.size() % 4); i++) {
+        stream.Write(static_cast<u8>(0));
+    }
+}
+
+u16 LiteralString::GetWordCount() const {
+    return static_cast<u16>(string.size() / 4 + 1);
+}
+
+bool LiteralString::operator==(const Operand& other) const {
+    if (operand_type == other.GetType()) {
+        return dynamic_cast<const LiteralString&>(other).string == string;
+    }
+    return false;
+}
+
+} // namespace Sirit