fix jump forward

This commit is contained in:
2024-10-23 20:05:41 +02:00
parent 47e7a17a74
commit 51f113804a
3 changed files with 27 additions and 11 deletions

View File

@@ -78,16 +78,16 @@ std::uint32_t Assembleur::ParseOperationImmediate(
}
std::uint32_t Assembleur::ParseJump(Instruction a_Instruction, const std::string& a_Label) {
int jump = a_Instruction.m_Line - ParseLabel(a_Label);
std::int32_t jump = ParseLabel(a_Label) - a_Instruction.m_Line;
if (jump < 0)
jump = jump & 0x7FFFFFF | 0x4000000;
jump = std::abs(jump) & 0x7FFFFFF | 0x4000000;
return IToInt(a_Instruction) | jump;
}
std::uint32_t Assembleur::ParseJump(Instruction a_Instruction, std::uint8_t a_R1, std::uint8_t a_R2, const std::string& a_Label) {
int jump = a_Instruction.m_Line - ParseLabel(a_Label);
std::int32_t jump = ParseLabel(a_Label) - a_Instruction.m_Line;
if (jump < 0)
jump = jump & 0xFFFFF | 100000;
jump = std::abs(jump) & 0xFFFFF | 0x100000;
return IToInt(a_Instruction) | a_R1 << 24 | a_R2 << 21 | jump;
}

View File

@@ -6,22 +6,38 @@
BinaryData ParseFile(const std::string& fileName) {
std::ifstream file{fileName};
std::uint32_t lineNumber = 0, realLineNumber = 0;
std::string line;
std::string currentLine;
std::vector<std::string> lines;
Assembleur assembleur;
BinaryData output;
while (getline(file, line)) {
// parsing labels
while (getline(file, currentLine)) {
lines.push_back(currentLine);
lineNumber++;
realLineNumber++;
if (line.find(":") != std::string::npos) {
std::string label = line.substr(0, line.size() - 1);
if (currentLine.find(":") != std::string::npos) {
std::string label = currentLine.substr(0, currentLine.size() - 1);
assembleur.AddLabel(label, lineNumber);
lineNumber--;
} else {
}
}
lineNumber = realLineNumber = 0;
// parsing instructions
for (std::string line : lines) {
lineNumber++;
realLineNumber++;
if (line.find(":") == std::string::npos) {
output.push_back(assembleur.ParseInstruction(line, lineNumber, realLineNumber));
} else {
lineNumber--;
}
}