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Debugger: Assembler - Allow binary immediate values (e.g lda #%10001000)

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Sour 2019-01-17 21:13:18 -05:00
parent 5f0e2a74b1
commit 6036e6cfb0
3 changed files with 25 additions and 1 deletions
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23
Core/Assembler.cpp
View file

@ -8,7 +8,7 @@
#include "DisassemblyInfo.h"
#include "LabelManager.h"
static const std::regex instRegex = std::regex("^\\s*([a-zA-Z]{3})[*]{0,1}[\\s]*([#]{0,1})([(]{0,1})[\\s]*([$]{0,1})([^,)(;:]*)[\\s]*((,x\\)|\\),y|,x|,y|\\)){0,1})\\s*(;*)(.*)", std::regex_constants::icase);
static const std::regex instRegex = std::regex("^\\s*([a-zA-Z]{3})[*]{0,1}[\\s]*(#%|#){0,1}([(]{0,1})[\\s]*([$]{0,1})([^,)(;:]*)[\\s]*((,x\\)|\\),y|,x|,y|\\)){0,1})\\s*(;*)(.*)", std::regex_constants::icase);
static const std::regex isCommentOrBlank = std::regex("^\\s*([;]+.*$|\\s*$)", std::regex_constants::icase);
static const std::regex labelRegex = std::regex("^\\s*([@_a-zA-Z][@_a-zA-Z0-9]*):(.*)", std::regex_constants::icase);
static const std::regex byteRegex = std::regex("^\\s*[.]byte\\s+((\\$[a-fA-F0-9]{1,2},)*)(\\$[a-fA-F0-9]{1,2})+\\s*(;*)(.*)$", std::regex_constants::icase);
@ -83,6 +83,8 @@ void Assembler::ProcessLine(string code, uint16_t &instructionAddress, vector<in
AssemblerSpecialCodes Assembler::GetLineData(std::smatch match, LineData &lineData, std::unordered_map<string, uint16_t> &labels, bool firstPass)
{
bool isBinary = match.str(2).length() > 1 && match.str(2)[1] == '%'; //Immediate + binary: "#%"
lineData.OpCode = match.str(1);
lineData.IsImmediate = !match.str(2).empty();
lineData.IsHex = !match.str(4).empty();
@ -102,6 +104,8 @@ AssemblerSpecialCodes Assembler::GetLineData(std::smatch match, LineData &lineDa
} else if(lineData.IsHex && !((c >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f'))) {
//invalid hex
return AssemblerSpecialCodes::InvalidHex;
} else if(isBinary && c != '0' && c != '1') {
return AssemblerSpecialCodes::InvalidBinaryValue;
}
lineData.Operand.push_back(c);
@ -110,6 +114,23 @@ AssemblerSpecialCodes Assembler::GetLineData(std::smatch match, LineData &lineDa
}
}
if(isBinary) {
//Convert the binary value to hex
if(lineData.Operand.size() == 0) {
return AssemblerSpecialCodes::MissingOperand;
} else if(lineData.Operand.size() <= 8) {
lineData.IsHex = true;
int value = 0;
for(int i = 0; i < lineData.Operand.size(); i++) {
value <<= 1;
value |= lineData.Operand[i] == '1' ? 1 : 0;
}
lineData.Operand = HexUtilities::ToHex(value, false);
} else {
return AssemblerSpecialCodes::OperandOutOfRange;
}
}
if(!lineData.HasComment && !match.str(9).empty()) {
//something is trailing at the end of the line, and it's not a comment
return AssemblerSpecialCodes::TrailingText;

1
Core/Assembler.h
View file

@ -34,6 +34,7 @@ enum AssemblerSpecialCodes
TrailingText = -9,
UnknownLabel = -10,
InvalidInstruction = -11,
InvalidBinaryValue = -12,
};
class Assembler

2
GUI.NET/Debugger/frmAssembler.cs
View file

@ -204,6 +204,7 @@ namespace Mesen.GUI.Debugger
case AssemblerSpecialCodes.TrailingText: message = "Invalid text trailing at the end of line"; break;
case AssemblerSpecialCodes.UnknownLabel: message = "Unknown label"; break;
case AssemblerSpecialCodes.InvalidInstruction: message = "Invalid instruction"; break;
case AssemblerSpecialCodes.InvalidBinaryValue: message = "Invalid binary value"; break;
}
errorList.Add(new ErrorDetail() { Message = message + " - " + codeLines[line-1], LineNumber = line });
line++;
@ -443,6 +444,7 @@ namespace Mesen.GUI.Debugger
TrailingText = -9,
UnknownLabel = -10,
InvalidInstruction = -11,
InvalidBinaryValue = -12
}
private void lstErrors_DoubleClick(object sender, EventArgs e)