private static string ConvertFileName(string fn)
{
ushort len = Str.GetLength(fn);
Registers.SI = (ushort)(StringPtr.Get(fn) + 1);
Registers.DI = (ushort)(StringPtr.Get(buffer) + 1);
for (ushort i = 0; i < 11; i++)
{
new Inline("mov byte [cs:di], ' '");
Registers.DI++;
}
Registers.DI = (ushort)(StringPtr.Get(buffer) + 1);
for (ushort i = 0; i < len; i++)
{
new Inline("mov al, [cs:si]");
Registers.AH = 0;
Registers.SI++;
char ch = (char)Registers.AX;
if (ch == '.')
{
Registers.DI = (ushort)(StringPtr.Get(buffer) + 9);
}
else
{
new Inline("mov [cs:di], al");
Registers.DI++;
}
}
return(buffer);
}
public static ushort GetLength(string str1)
{
Registers.SI = StringPtr.Get(str1);
new Inline("mov al, [si]");
new Inline("mov ah, 0");
return(Registers.AX);
}
public static bool StartsWith(string str1, ushort str2ptr)
{
Registers.SI = StringPtr.Get(str1);
new Inline("mov cl, [si]");
new Inline("mov ch, 0");
new Inline("inc si");
Registers.DI = str2ptr;
new Inline("rep cmpsb");
return(Flags.E);
}
public static void Write(string s)
{
Registers.SI = StringPtr.Get(s);
new Inline("cs lodsb");
Registers.AH = 0;
ushort len = Registers.AX;
for (int i = 0; i < len; i++)
{
new Inline("cs lodsb");
Registers.AH = 0x0e;
Registers.BX = 0;
new Inline("int 0x10");
}
}
