/// <summary>
/// Compare two variables and set the flags.
/// </summary>
public static HITResult Cmp(HITThread thread) //same as sub, but does not set afterwards.
{
var dest = thread.ReadByte();
var src = thread.ReadByte();
var result = thread.ReadVar(dest) - thread.ReadVar(src);
thread.SetFlags(result);
return(HITResult.CONTINUE);
}
//0x10
/// <summary>
/// Increment a "dest" variable by a "src" variable.
/// </summary>
public static HITResult Add(HITThread thread)
{
var dest = thread.ReadByte();
var src = thread.ReadByte();
var result = thread.ReadVar(dest) + thread.ReadVar(src);
thread.WriteVar(dest, result);
thread.SetFlags(result);
return HITResult.CONTINUE;
}
/// <summary>
/// Load a track ("index" variable) from a hitlist ("table" variable).
/// </summary>
public static HITResult SmartIndex(HITThread thread)
{
var dest = thread.ReadVar(thread.ReadByte());
var index = thread.ReadVar(thread.ReadByte());
thread.LoadHitlist((byte)index);
int TrackID = (int)thread.LoadTrack(index);
thread.WriteVar(dest, TrackID);
return(HITResult.CONTINUE); //Appears to be unused.
}
/// <summary>
/// Load a track ("index" variable) from a hitlist ("table" variable).
/// </summary>
public static HITResult SmartIndex(HITThread thread)
{
var dest = thread.ReadVar(thread.ReadByte());
var index = thread.ReadVar(thread.ReadByte());
thread.LoadHitlist((byte)index);
//Converting this to an int is a hack because WriteVar only takes an int... o_O
int TrackID = (int)thread.LoadTrack(index);
thread.WriteVar(dest, TrackID);
return(HITResult.CONTINUE); //Appears to be unused.
}
/// <summary>
/// Multiply a "dest" variable by a "src" variable.
/// </summary>
public static HITResult Mul(HITThread thread)
{
var dest = thread.ReadByte();
var src = thread.ReadByte();
var result = thread.ReadVar(dest) * thread.ReadVar(src);
thread.WriteVar(dest, result);
thread.SetFlags(result);
return(HITResult.CONTINUE);
}
public static HITResult GetSrcDataField(HITThread thread)
{
var dest = thread.ReadByte();
var src = thread.ReadByte();
var field = thread.ReadByte();
int ObjectVar = thread.ReadVar(src);
ObjectVar = thread.ReadVar(10010 + ObjectVar);
thread.WriteVar(dest, ObjectVar);
thread.SetFlags(ObjectVar);
return(HITResult.CONTINUE);
}
/// <summary>
/// Wait until two variables are equal.
/// </summary>
public static HITResult WaitEqual(HITThread thread)
{
var dest = thread.ReadByte();
var src = thread.ReadByte();
if (thread.ReadVar(dest) != thread.ReadVar(dest))
{
thread.PC -= 3;
return(HITResult.HALT);
}
else
{
return(HITResult.CONTINUE);
}
}
/// <summary>
/// Choose a global hitlist, or 0 for the one local to the track (source: defaultsyms.txt).
/// </summary>
public static HITResult SmartSetList(HITThread thread)
{ //sets the hitlist
var src = thread.ReadByte();
thread.LoadHitlist((uint)thread.ReadVar(src));
return(HITResult.CONTINUE);
}
/// <summary>
/// Examine a variable and set the flags.
/// </summary>
public static HITResult Test(HITThread thread)
{
var value = thread.ReadVar(thread.ReadByte());
thread.SetFlags(value);
return(HITResult.CONTINUE);
}
/// <summary>
/// Copy the contents of one variable into another.
/// </summary>
public static HITResult Set(HITThread thread)
{
var dest = thread.ReadByte();
var src = thread.ReadVar(thread.ReadByte());
thread.WriteVar(dest, src);
thread.SetFlags(src);
return(HITResult.CONTINUE);
}
/// <summary>
/// Find the lower of a "dest" variable and a "src" constant and store the result in the variable.
/// </summary>
public static HITResult Min(HITThread thread)
{
var dest = thread.ReadByte();
var src = thread.ReadInt32();
var result = Math.Min(thread.ReadVar(dest), src);
thread.WriteVar(dest, result);
thread.SetFlags(result);
return(HITResult.CONTINUE); //unused in the sims
}
/// <summary>
/// Wait for a length of time in milliseconds, specified by a variable.
/// </summary>
public static HITResult Wait(HITThread thread)
{
var src = thread.ReadByte();
if (thread.WaitRemain == -1)
{
thread.WaitRemain = thread.ReadVar(src);
}
thread.WaitRemain -= 16; //assuming tick rate is 60 times a second
if (thread.WaitRemain > 0)
{
thread.PC -= 2;
return(HITResult.HALT);
}
else
{
thread.WaitRemain = -1;
return(HITResult.CONTINUE);
}
}
/// <summary>
/// Jump to a given address.
/// </summary>
public static HITResult Jump(HITThread thread)
{
var read = thread.ReadByte();
if (read > 15) //literal
{
thread.PC--; //backtraaackkk
thread.PC = PCTrans(thread.ReadUInt32(), thread);
}
else //no idea if there are collisions. if there are i'm blaming fatbag. >:)
{
thread.PC = PCTrans((uint)thread.ReadVar(read), thread);
if (thread.ReadByte() == 0)
{
thread.PC += 2; //if next is no-op, the operand is 4 byte
}
else
{
thread.PC--; //operand is 1 byte (next is an instruction), backtrack
}
}
return(HITResult.CONTINUE);
}
/// <summary>
/// Jump to a given address.
/// </summary>
public static HITResult Jump(HITThread thread)
{
var read = thread.ReadByte();
if (read > 15) //literal
{
thread.PC--; //backtraaackkk
thread.PC = thread.ReadUInt32();
}
else //no idea if there are collisions. if there are i'm blaming fatbag. >:)
{
thread.PC = (uint)thread.ReadVar(read);
if (thread.ReadByte() == 0) thread.PC += 2; //if next is no-op, the operand is 4 byte
else thread.PC--; //operand is 1 byte (next is an instruction), backtrack
}
return HITResult.CONTINUE;
}
/// <summary>
/// Find the lower of a "dest" variable and a "src" constant and store the result in the variable.
/// </summary>
public static HITResult Min(HITThread thread)
{
var dest = thread.ReadByte();
var src = thread.ReadInt32();
var result = Math.Min(thread.ReadVar(dest), src);
thread.WriteVar(dest, result);
thread.SetFlags(result);
return HITResult.CONTINUE; //unused in the sims
}
public static HITResult GetSrcDataField(HITThread thread)
{
var dest = thread.ReadByte();
var src = thread.ReadByte();
var field = thread.ReadByte();
int ObjectVar = thread.ReadVar(src);
ObjectVar = thread.ReadVar(10010 + ObjectVar);
thread.WriteVar(dest, ObjectVar);
thread.SetFlags(ObjectVar);
return HITResult.CONTINUE;
}
/// <summary>
/// Copy the contents of one variable into another.
/// </summary>
public static HITResult Set(HITThread thread)
{
var dest = thread.ReadByte();
var src = thread.ReadVar(thread.ReadByte());
thread.WriteVar(dest, src);
thread.SetFlags(src);
return HITResult.CONTINUE;
}
/// <summary>
/// Wait until two variables are equal.
/// </summary>
public static HITResult WaitEqual(HITThread thread)
{
var dest = thread.ReadByte();
var src = thread.ReadByte();
if (thread.ReadVar(dest) != thread.ReadVar(dest))
{
thread.PC -= 3;
return HITResult.HALT;
}
else
return HITResult.CONTINUE;
}
/// <summary>
/// Wait for a length of time in milliseconds, specified by a variable.
/// </summary>
public static HITResult Wait(HITThread thread)
{
var src = thread.ReadByte();
if (thread.WaitRemain == -1) thread.WaitRemain = thread.ReadVar(src);
thread.WaitRemain -= 16; //assuming tick rate is 60 times a second
if (thread.WaitRemain > 0)
{
thread.PC -= 2;
return HITResult.HALT;
}
else
{
thread.WaitRemain = -1;
return HITResult.CONTINUE;
}
}
/// <summary>
/// Examine a variable and set the flags.
/// </summary>
public static HITResult Test(HITThread thread)
{
var value = thread.ReadVar(thread.ReadByte());
thread.SetFlags(value);
return HITResult.CONTINUE;
}
/// <summary>
/// Choose a global hitlist, or 0 for the one local to the track (source: defaultsyms.txt).
/// </summary>
public static HITResult SmartSetList(HITThread thread)
{
//sets the hitlist
var src = thread.ReadByte();
thread.LoadHitlist((uint)thread.ReadVar(src));
return HITResult.CONTINUE;
}
/// <summary>
/// Load a track ("index" variable) from a hitlist ("table" variable).
/// </summary>
public static HITResult SmartIndex(HITThread thread)
{
var dest = thread.ReadVar(thread.ReadByte());
var index = thread.ReadVar(thread.ReadByte());
thread.LoadHitlist((byte)index);
//Converting this to an int is a hack because WriteVar only takes an int... o_O
int TrackID = (int)thread.LoadTrack(index);
thread.WriteVar(dest, TrackID);
return HITResult.CONTINUE; //Appears to be unused.
}
