project64/Source/Project64/N64 System/Mips/Memory Labels Class.cpp

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#include "stdafx.h"
DWORD CMemoryLabel::AsciiToHex (char * HexValue) {
DWORD Count, Finish, Value = 0;
Finish = strlen(HexValue);
if (Finish > 8 ) { Finish = 8; }
for (Count = 0; Count < Finish; Count++){
Value = (Value << 4);
switch( HexValue[Count] ) {
case '0': break;
case '1': Value += 1; break;
case '2': Value += 2; break;
case '3': Value += 3; break;
case '4': Value += 4; break;
case '5': Value += 5; break;
case '6': Value += 6; break;
case '7': Value += 7; break;
case '8': Value += 8; break;
case '9': Value += 9; break;
case 'A': Value += 10; break;
case 'a': Value += 10; break;
case 'B': Value += 11; break;
case 'b': Value += 11; break;
case 'C': Value += 12; break;
case 'c': Value += 12; break;
case 'D': Value += 13; break;
case 'd': Value += 13; break;
case 'E': Value += 14; break;
case 'e': Value += 14; break;
case 'F': Value += 15; break;
case 'f': Value += 15; break;
default:
Value = (Value >> 4);
Count = Finish;
}
}
return Value;
}
void CMemoryLabel::AddMemoryLabel ( DWORD Address, const char * Message, ... ) {
StringMap::iterator Item = m_LabelList.find(Address);
if (Item == m_LabelList.end()) {
char Msg[1000];
va_list ap;
va_start( ap, Message );
_vsnprintf( Msg,sizeof(Msg),Message, ap );
va_end( ap );
//if item is already in the list then do not add it
m_LabelList.insert(StringMap::value_type(Address,stdstr(Msg)));
m_NewLabels += 1;
}
}
stdstr CMemoryLabel::LabelName ( DWORD Address ) const {
//StringMap::iterator theIterator = m_LabelList.find(Address);
//if (theIterator != m_LabelList.end()) {
// return (*theIterator).second;
//}
char strLabelName[100];
sprintf(strLabelName,"0x%08X",Address);
return stdstr(strLabelName);
}
stdstr CMemoryLabel::StoredLabelName ( DWORD Address ) {
StringMap::iterator theIterator = m_LabelList.find(Address);
if (theIterator != m_LabelList.end()) {
return (*theIterator).second;
}
return stdstr("");
}
void CMemoryLabel::LoadLabelList ( char * file ) {
m_LabelList.clear();
CurrentLabelFile = file;
HANDLE hFile = CreateFile(file,GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,
OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, NULL);
if (hFile == INVALID_HANDLE_VALUE) { return; }
SetFilePointer(hFile,0,NULL,FILE_BEGIN);
DWORD FileSize = GetFileSize(hFile,NULL);
void * FileContents = VirtualAlloc(NULL,FileSize,MEM_COMMIT,PAGE_READWRITE );
if (FileContents) {
DWORD dwRead;
if (!ReadFile(hFile,FileContents,FileSize,&dwRead,NULL)) {
VirtualFree(FileContents, 0, MEM_RELEASE);
FileContents = NULL;
}
}
if (FileContents) { ProcessCODFile((BYTE *)FileContents, FileSize); }
VirtualFree(FileContents, 0, MEM_RELEASE);
CloseHandle(hFile);
m_NewLabels = 0;
}
// How many new labels been added since loading/saveing label file
int CMemoryLabel::NewLabels ( void ) {
return m_NewLabels;
}
void CMemoryLabel::SaveLabelList ( void ) {
m_NewLabels = 0;
if (CurrentLabelFile.length() == 0) { return; }
HANDLE hFile = CreateFile(CurrentLabelFile.c_str(),GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,
CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, NULL);
SetFilePointer(hFile,0,NULL,FILE_BEGIN);
for (StringMap::iterator Item = m_LabelList.begin(); Item != m_LabelList.end(); Item++) {
char Text[300];
DWORD dwWritten;
sprintf(Text, "0x%08X,%s\r\n",(*Item).first,((*Item).second).c_str());
WriteFile( hFile,Text,strlen(Text),&dwWritten,NULL );
}
CloseHandle(hFile);
}
void CMemoryLabel::ProcessCODFile(BYTE * File, DWORD FileLen) {
char * CurrentPos = (char *)File;
char Label[40];
DWORD Address;
int Length;
while ( CurrentPos < (char *)File + FileLen ) {
if (*CurrentPos != '0') { return; }
CurrentPos += 1;
if (*CurrentPos != 'x') { return; }
CurrentPos += 1;
if (strchr(CurrentPos,',') - CurrentPos != 8) { return; }
Address = AsciiToHex (CurrentPos);
CurrentPos += 9;
if (strchr(CurrentPos,'\r') == NULL) {
Length = strchr(CurrentPos,'\n') - CurrentPos;
} else {
Length = strchr(CurrentPos,'\r') - CurrentPos;
if (Length > (strchr(CurrentPos,'\n') - CurrentPos)) {
Length = strchr(CurrentPos,'\n') - CurrentPos;
}
}
if (Length > 40) { Length = 40; }
memcpy(Label,CurrentPos,Length);
Label[Length] = '\0';
AddMemoryLabel (Address, Label);
CurrentPos = strchr(CurrentPos,'\n') + 1;
}
}