Nyx.cpp

typedef unsigned char byte;

struct OpCode
{
	byte Prefix : 4;
	byte Code : 4;
};

struct TypeCodes
{
	byte T1 : 4;
	byte T2 : 4;
};

struct ByteStack
{
	unsigned int Capacity;
	unsigned int Top;
	byte* stack;
};

struct ScriptData
{
	unsigned int OpAddr;
	ByteStack Stack;
	byte* DataSegment;
	byte* ByteCode;
	byte Result[8];
};

#define ReadBytes(type,data,addr)(*(type*)&data[addr]);addr+=sizeof(type)
#define StretchType(type,data,addr)(*(type*)&data[addr])
typedef char i8;
typedef unsigned char u8;
typedef short i16;
typedef unsigned short u16;
typedef int i32;
typedef unsigned int u32;
typedef long long i64;
typedef unsigned long long u64;

void RunScript(ByteStack & stack, ScriptData & data)
{
	while(code.Code != 0x00)
	{
		OpCode* code = (OpCode*)&data.ByteCode[data.OpAddr];
		byte ExtraData;
		switch(code.Code)
		{
			case 0x01:/*MOV*/
			{
				data.OpAddr++;
				switch(code.Prefix)
				{
					case 0x00://From RESULT to DS
					{
						ExtraData = data.ByteCode[data.OpAddr];//Get Size Data
						data.OpAddr++;
						switch(ExtraData)//Check Size
						{
							case 0x00:/*1 byte*/
								*StretchType(byte*,data.ByteCode,data.OpAddr) = data.Result[0];
							break;
							case 0x01:/*2 bytes*/
								*StretchType(unsigned short*,data.ByteCode,data.OpAddr) = StretchType(unsigned short,data.Result,0);
							break;
							case 0x02:/*4 bytes*/
								*StretchType(unsigned int*,data.ByteCode,data.OpAddr) = StretchType(unsigned int,data.Result,0);
							break;
							case 0x03:/*8 bytes(max)*/
								*StretchType(unsigned long int*,data.ByteCode,data.OpAddr) = StretchType(unsigned long int,data.Result,0);
							break;
						}
						data.OpAddr+=4;
					}
					break;
					case 0x01://From DS to DS
					{
						ExtraData = data.ByteCode[data.OpAddr];//Get Size Data
						data.OpAddr++;
						switch(ExtraData)//Check Size
						{
							case 0x00:/*1 byte*/
								*StretchType(u8*,data.ByteCode,data.OpAddr) = *StretchType(u8*,data.ByteCode,data.OpAddr + 4);
							break;
							case 0x01:/*2 bytes*/
								*StretchType(u16*,data.ByteCode,data.OpAddr) = *StretchType(u16*,data.ByteCode,data.OpAddr + 4);
							break;
							case 0x02:/*4 bytes*/
								*StretchType(u32*,data.ByteCode,data.OpAddr) = *StretchType(u32*,data.ByteCode,data.OpAddr + 4);
							break;
							case 0x03:/*8 bytes(max)*/
								*StretchType(u64*,data.ByteCode,data.OpAddr) = *StretchType(u64*,data.ByteCode,data.OpAddr + 4);
							break;
						}
						data.OpAddr+=8;
					}
					break;
					case 0x02:/*From Value to DS*/
					{
						ExtraData = data.ByteCode[data.OpAddr];//Get Size Data
						data.OpAddr++;
						switch(ExtraData)//Check Size
						{
							case 0x00:/*1 byte*/
								*StretchType(u8*,data.ByteCode,data.OpAddr) = StretchType(u8,data.ByteCode,data.OpAddr + 4);
								data.OpAddr+=5;
							break;
							case 0x01:/*2 bytes*/
								*StretchType(u16*,data.ByteCode,data.OpAddr) = *StretchType(u16*,data.ByteCode,data.OpAddr + 4);
								data.OpAddr+=6;
							break;
							case 0x02:/*4 bytes*/
								*StretchType(u32*,data.ByteCode,data.OpAddr) = *StretchType(u32*,data.ByteCode,data.OpAddr + 4);
								data.OpAddr+=8;
							break;
							case 0x03:/*8 bytes(max)*/
								*StretchType(u64*,data.ByteCode,data.OpAddr) = *StretchType(u64*,data.ByteCode,data.OpAddr + 4);
								data.OpAddr+=12;
							break;
						}
					}
					break;
					case 0x03:/*From pointer to DS*/
					{
						ExtraData = data.ByteCode[data.OpAddr];//Get Size Data
						data.OpAddr++;
						switch(ExtraData)//Check Size
						{
							case 0x00:/*1 byte*/
								*StretchType(u8*,data.ByteCode,data.OpAddr) = *StretchType(u8**,data.ByteCode,data.OpAddr + 4);
								data.OpAddr+=8;
							break;
							case 0x01:/*2 bytes*/
								*StretchType(u16*,data.ByteCode,data.OpAddr) = *StretchType(u16**,data.ByteCode,data.OpAddr + 4);
								data.OpAddr+=8;
							break;
							case 0x02:/*4 bytes*/
								*StretchType(u32*,data.ByteCode,data.OpAddr) = *StretchType(u32**,data.ByteCode,data.OpAddr + 4);
								data.OpAddr+=8;
							break;
							case 0x03:/*8 bytes(max)*/
								*StretchType(u64*,data.ByteCode,data.OpAddr) = *StretchType(u64*,data.ByteCode,data.OpAddr + 4);
								data.OpAddr+=8;
							break;
						}
					}
					break;
					case 0x04:
					{
					
					}
					break;
					case 0x05:
					{
					
					}
					break;
					case 0x06:
					{
					
					}
					break;
					case 0x07:
					{
					
					}
					break;
					case 0x08:
					{
					
					}
					break;
					case 0x09:
					{
					
					}
					break;
					case 0x0A:
					{
					
					}
					break;
				}
			}
			break;
			case 0x02:
			{
			
			}
			break;
			case 0x03:
			{
			
			}
			break;
			case 0x04:
			{
			
			}
			break;
			case 0x05:
			{
			
			}
			break;
			case 0x06:
			{
			
			}
			break;
			case 0x07:
			{
			
			}
			break;
			case 0x08:
			{
			
			}
			break;
			case 0x09:
			{
			
			}
			break;
		}
		data.OpAddr++;
	}
}