private void PushOperand(DebuggableEmitter il, ulong index, UrclInstruction inst)
{
bool isImm;
ulong value;
switch (index)
{
case 0:
isImm = inst.AType switch
{
OperandType.Register => false,
OperandType.Immediate => true,
_ => throw new InvalidOperationException(),
};
value = inst.A;
break;
case 1:
isImm = inst.BType switch
{
OperandType.Register => false,
OperandType.Immediate => true,
_ => throw new InvalidOperationException(),
};
value = inst.B;
break;
case 2:
isImm = inst.CType switch
{
OperandType.Register => false,
OperandType.Immediate => true,
_ => throw new InvalidOperationException(),
};
value = inst.C;
break;
default:
throw new InvalidOperationException();
}
if (isImm)
{
il.Emit(OpCodes.Ldc_I8, value);
}
else
{
if (value == 0)
{
il.Emit(OpCodes.Ldc_I8, 0UL);
}
else
{
il.Emit(OpCodes.Ldloc, Registers[value - 1]);
}
}
}
private static Operand GetA(UrclInstruction instruction)
{
return(instruction.AType switch
{
OperandType.None => Operand.Imm("0"),
OperandType.Register => instruction.A == 0 ? Operand.Imm("0") : Operand.Abs(((instruction.A - 1) * 2) + RegistersOffset),
OperandType.Immediate => Operand.Imm(instruction.A.ToString()),
OperandType.Label => Operand.Imm(LabelToString(instruction.ALabel)),
_ => throw new ArgumentException($"Unsupported operand type {instruction.AType}.", "A"),
});
private void PopOperand(DebuggableEmitter il, ulong index, UrclInstruction inst)
{
ulong reg;
switch (index)
{
case 0:
if (inst.AType == OperandType.Register)
{
reg = inst.A;
}
else
{
throw new InvalidOperationException();
}
break;
case 1:
if (inst.AType == OperandType.Register)
{
reg = inst.B;
}
else
{
throw new InvalidOperationException();
}
break;
case 2:
if (inst.AType == OperandType.Register)
{
reg = inst.C;
}
else
{
throw new InvalidOperationException();
}
break;
default:
throw new InvalidOperationException();
}
if (reg == 0)
{
il.Emit(OpCodes.Pop);
}
else
{
il.Emit(OpCodes.Stloc, Registers[reg - 1]);
}
}
private ResolvedInstruction Decode(UrclInstruction inst)
{
var argCount = 0;
if (inst.AType != OperandType.None)
{
argCount++;
}
if (inst.BType != OperandType.None)
{
argCount++;
}
if (inst.CType != OperandType.None)
{
argCount++;
}
var args = new object[argCount];
if (argCount >= 1)
{
args[0] = inst.AType switch
{
OperandType.Register => new Register(inst.A),
OperandType.Immediate => inst.A,
_ => ResolveValue(inst.ALabel),
};
}
if (argCount >= 2)
{
args[1] = inst.BType switch
{
OperandType.Register => new Register(inst.B),
OperandType.Immediate => inst.B,
_ => ResolveValue(inst.BLabel),
};
}
if (argCount >= 3)
{
args[2] = inst.CType switch
{
OperandType.Register => new Register(inst.C),
OperandType.Immediate => inst.C,
_ => ResolveValue(inst.CLabel),
};
}
return(new ResolvedInstruction(inst.Operation, args));
}
public static IEnumerable <UrclInstruction> Parse(IEnumerable <string> lines)
{
var labels = new Dictionary <string, Label>();
ulong ram = 1024;
ulong maxReg = 0;
for (int parseIteration = 0; parseIteration < 3; parseIteration++)
{
int index = 0;
foreach (var line in lines)
{
var trimmed = line.Trim();
if (trimmed.Length != 0 && !line.StartsWith("//"))
{
UrclInstruction result = null;
try
{
result = ParseInstruction(trimmed, parseIteration == 0, parseIteration > 0, labels);
if (parseIteration == 1)
{
if (result.Operation == Operation.MINRAM && result.A > ram)
{
ram = result.A;
}
else
{
if (result.AType == OperandType.Register && result.A > maxReg)
{
maxReg = result.A;
}
if (result.BType == OperandType.Register && result.B > maxReg)
{
maxReg = result.B;
}
if (result.CType == OperandType.Register && result.C > maxReg)
{
maxReg = result.C;
}
}
result = null;
}
else if (result != null && result.Operation == Operation.MINRAM)
{
result = null;
}
}
catch (ParserError ex)
{
throw new ParserError($"Error on line {index + 1}: \"{line}\" {ex.Message}");
}
if (result != null)
{
yield return(result);
}
}
index++;
}
if (parseIteration == 1)
{
yield return(new UrclInstruction(Operation.COMPILER_MAXREG, OperandType.Immediate, maxReg));
yield return(new UrclInstruction(Operation.MINRAM, OperandType.Immediate, ram));
}
}
}
private void Emit(Action <X86Inst> emit, UrclInstruction instruction)
{
switch (instruction.Operation)
{
case Operation.NOP:
emit(new X86Inst("nop"));
break;
case Operation.BRK:
case Operation.HLT:
emit(new X86Inst("hlt"));
break;
case Operation.ADD:
Set(emit, AX, GetB(instruction));
Set(emit, BX, GetC(instruction));
emit(new X86Inst("add", AX, BX));
Set(emit, GetA(instruction), AX);
break;
case Operation.INC:
Set(emit, AX, GetB(instruction));
emit(new X86Inst("inc", AX));
Set(emit, GetA(instruction), AX);
break;
case Operation.SUB:
Set(emit, AX, GetB(instruction));
Set(emit, BX, GetC(instruction));
emit(new X86Inst("sub", AX, BX));
Set(emit, GetA(instruction), AX);
break;
case Operation.DEC:
Set(emit, AX, GetB(instruction));
emit(new X86Inst("dec", AX));
Set(emit, GetA(instruction), AX);
break;
case Operation.MLT:
Set(emit, AX, GetB(instruction));
Set(emit, BX, GetC(instruction));
emit(new X86Inst("mul", BX));
Set(emit, GetA(instruction), AX);
break;
case Operation.DIV:
Set(emit, AX, GetB(instruction));
Set(emit, BX, GetC(instruction));
emit(new X86Inst("xor", DX, DX));
emit(new X86Inst("div", BX));
Set(emit, GetA(instruction), AX);
break;
case Operation.MOD:
Set(emit, AX, GetB(instruction));
Set(emit, BX, GetC(instruction));
emit(new X86Inst("xor", DX, DX));
emit(new X86Inst("div", BX));
Set(emit, GetA(instruction), DX);
break;
case Operation.AND:
Set(emit, AX, GetB(instruction));
Set(emit, BX, GetC(instruction));
emit(new X86Inst("and", AX, BX));
Set(emit, GetA(instruction), AX);
break;
case Operation.OR:
Set(emit, AX, GetB(instruction));
Set(emit, BX, GetC(instruction));
emit(new X86Inst("or", AX, BX));
Set(emit, GetA(instruction), AX);
break;
case Operation.XOR:
Set(emit, AX, GetB(instruction));
Set(emit, BX, GetC(instruction));
emit(new X86Inst("xor", AX, BX));
Set(emit, GetA(instruction), AX);
break;
case Operation.NAND:
Set(emit, AX, GetB(instruction));
Set(emit, BX, GetC(instruction));
emit(new X86Inst("and", AX, BX));
emit(new X86Inst("not", AX));
Set(emit, GetA(instruction), AX);
break;
case Operation.NOR:
Set(emit, AX, GetB(instruction));
Set(emit, BX, GetC(instruction));
emit(new X86Inst("or", AX, BX));
emit(new X86Inst("not", AX));
Set(emit, GetA(instruction), AX);
break;
case Operation.XNOR:
Set(emit, AX, GetB(instruction));
Set(emit, BX, GetC(instruction));
emit(new X86Inst("xor", AX, BX));
emit(new X86Inst("not", AX));
Set(emit, GetA(instruction), AX);
break;
case Operation.NOT:
Set(emit, AX, GetB(instruction));
emit(new X86Inst("not", AX));
Set(emit, GetA(instruction), AX);
break;
case Operation.LSH:
Set(emit, AX, GetB(instruction));
Set(emit, BX, Operand.Imm("1"));
emit(new X86Inst("shl", AX, BX));
Set(emit, GetA(instruction), AX);
break;
case Operation.BSL:
Set(emit, AX, GetB(instruction));
Set(emit, BX, GetC(instruction));
emit(new X86Inst("shl", AX, BX));
Set(emit, GetA(instruction), AX);
break;
case Operation.RSH:
Set(emit, AX, GetB(instruction));
Set(emit, BX, Operand.Imm("1"));
emit(new X86Inst("shr", AX, BX));
Set(emit, GetA(instruction), AX);
break;
case Operation.BSR:
Set(emit, AX, GetB(instruction));
Set(emit, BX, GetC(instruction));
emit(new X86Inst("shr", AX, BX));
Set(emit, GetA(instruction), AX);
break;
case Operation.MOV:
if (instruction.BType == OperandType.Register && instruction.B == 0)
{
Set(emit, GetA(instruction), Operand.Imm("0"));
}
else
{
Set(emit, AX, GetB(instruction));
Set(emit, GetA(instruction), AX);
}
break;
case Operation.IMM:
Set(emit, GetA(instruction), GetB(instruction));
break;
case Operation.LOAD:
{
Set(emit, BX, GetB(instruction));
emit(new X86Inst("shl", BX, Operand.Imm("1")));
Set(emit, AX, Operand.Rel(BX, 0));
Set(emit, GetA(instruction), AX);
}
break;
case Operation.STORE:
{
Set(emit, AX, GetB(instruction));
Set(emit, BX, GetA(instruction));
emit(new X86Inst("shl", BX, Operand.Imm("1")));
Set(emit, Operand.Rel(BX, 0), AX);
}
break;
case Operation.IN:
{
var port = GetB(instruction).ToString();
switch (port)
{
case "3":
case "78":
case "79":
emit(new X86Inst("xor", AX, AX));
emit(new X86Inst("int", Operand.Imm("0x16")));
emit(new X86Inst("and", AX, Operand.Imm("0xFF")));
Set(emit, GetA(instruction), AX);
break;
default:
throw new ArgumentException($"Unsupported IO port \"{port}\"", "B");
}
}
break;
case Operation.OUT:
{
var port = GetA(instruction).ToString();
switch (port)
{
case "3":
case "78":
case "79":
Set(emit, AX, Operand.Imm("0x0A00"));
Set(emit, BX, GetB(instruction));
Set(emit, CX, Operand.Imm("1"));
emit(new X86Inst("and", BX, Operand.Imm("0xFF")));
emit(new X86Inst("or", AX, BX));
emit(new X86Inst("xor", BX, BX));
emit(new X86Inst("int", Operand.Imm("0x10")));
break;
default:
throw new ArgumentException($"Unsupported IO port \"{port}\"", "A");
}
}
break;
case Operation.PSH:
{
emit(new X86Inst("push", GetA(instruction)));
}
break;
case Operation.POP:
{
if (instruction.AType == OperandType.Register && instruction.A != 0)
{
emit(new X86Inst("pop", GetA(instruction)));
}
else
{
emit(new X86Inst("pop", AX));
}
}
break;
case Operation.BRA:
{
var target = GetA(instruction);
if (instruction.AType == OperandType.Register)
{
Set(emit, AX, target);
target = AX;
}
emit(new X86Inst("jmp", target));
}
break;
case Operation.BRZ:
{
var target = GetA(instruction);
if (instruction.AType == OperandType.Register)
{
Set(emit, AX, target);
target = AX;
}
emit(new X86Inst("jz", target));
}
break;
case Operation.BNZ:
{
var target = GetA(instruction);
if (instruction.AType == OperandType.Register)
{
Set(emit, AX, target);
target = AX;
}
emit(new X86Inst("jnz", target));
}
break;
case Operation.BRC:
{
var target = GetA(instruction);
if (instruction.AType == OperandType.Register)
{
Set(emit, AX, target);
target = AX;
}
emit(new X86Inst("jc", target));
}
break;
case Operation.BNC:
{
var target = GetA(instruction);
if (instruction.AType == OperandType.Register)
{
Set(emit, AX, target);
target = AX;
}
emit(new X86Inst("jnc", target));
}
break;
case Operation.BRP:
{
var target = GetA(instruction);
if (instruction.AType == OperandType.Register)
{
Set(emit, AX, target);
target = AX;
}
emit(new X86Inst("jns", target));
}
break;
case Operation.BRN:
{
var target = GetA(instruction);
if (instruction.AType == OperandType.Register)
{
Set(emit, AX, target);
target = AX;
}
emit(new X86Inst("js", target));
}
break;
case Operation.CAL:
{
emit(new X86Inst("call", GetA(instruction)));
}
break;
case Operation.RET:
emit(new X86Inst("ret"));
break;
case Operation.COMPILER_MARKLABEL:
emit(new X86Inst($"{LabelToString(instruction.ALabel)}:"));
break;
case Operation.MINRAM:
case Operation.BENCHMARK:
case Operation.COMPILER_CREATELABEL:
case Operation.COMPILER_PRAGMA:
case Operation.COMPILER_MAXREG:
break;
case Operation.COMPILER_COMMENT:
if (CommentPrefix != null)
{
foreach (var line in instruction.Arguments)
{
emit(new X86Inst($"{CommentPrefix}{line}"));
}
}
break;
default:
break;
}
}
public IEnumerable <UrclInstruction> Parse(IEnumerable <string> lines, Func <string, IEnumerable <string> > import, string sourceName = null)
{
var lineLabels = new Label[lines.Count()];
var used = new bool[lineLabels.Length];
for (int parseIteration = 0; parseIteration < 3; parseIteration++)
{
string macroName = null;
var macroBuffer = new List <UrclInstruction>();
int index = 0;
foreach (var line in lines)
{
var trimmed = line.Trim();
if (!ParserIgnore(trimmed))
{
if (parseIteration == 0)
{
lineLabels[index] = new Label();
}
UrclInstruction result = null;
IEnumerable <UrclInstruction> block = null;
try
{
result = ParseInstruction(trimmed, parseIteration == 0, parseIteration > 0, Labels, ValueMacros, CodeMacros, (rel) =>
{
var target = rel + index;
if (target < 0 || target >= lineLabels.Length || lineLabels[target] is null)
{
throw new ParserError("Relative address is out of bounds.");
}
used[target] = true;
return(lineLabels[target]);
});
if (parseIteration == 1 && result != null)
{
if (result.Operation == Operation.COMPILER_CODEMACRO_BEGIN)
{
if (macroName != null)
{
throw new ParserError("Macro was not finished before starting another macro.");
}
macroName = result.Arguments[0];
macroBuffer.Clear();
result = null;
}
else if (result.Operation == Operation.COMPILER_CODEMACRO_END)
{
if (macroName == null)
{
throw new ParserError("Missing beginning of macro.");
}
CodeMacros[macroName] = macroBuffer.ToArray();
macroName = null;
macroBuffer.Clear();
result = null;
}
else if (result.Operation == Operation.COMPILER_CODEMACRO_USE)
{
if (macroName != null)
{
throw new ParserError("Nested macros are not supported.");
}
if (CodeMacros.TryGetValue(result.Arguments[0], out IEnumerable <UrclInstruction> insts))
{
block = insts;
result = null;
}
else
{
throw new ParserError($"Undefined macro \"{result.Arguments[0]}\"");
}
}
else if (result.Operation == Operation.IMPORT)
{
var name = result.Arguments[0];
block = Parse(import(string.Join(' ', result.Arguments)), import, sourceName).ToArray();
result = null;
}
else if (macroName != null)
{
macroBuffer.Add(result);
result = null;
}
result = null;
}
else if (result != null)
{
if (result.Operation == Operation.MINRAM || result.Operation == Operation.IMPORT)
{
result = null;
}
}
}
catch (TargetInvocationException ex)
{
throw new ParserError($"Error on line {index + 1}: \"{line}\" {ex.InnerException.Message}");
}
catch (ParserError ex)
{
throw new ParserError($"Error on line {index + 1}: \"{line}\" {ex.Message}");
}
if ((result != null || block != null) && used[index])
{
yield return(new UrclInstruction(Operation.COMPILER_MARKLABEL, lineLabels[Array.IndexOf(lineLabels, lineLabels[index])]));
}
if (result != null)
{
yield return(result);
}
if (block != null)
{
foreach (var inst in block)
{
yield return(inst);
}
}
}
else
{
if (parseIteration == 0)
{
if (index > 0)
{
lineLabels[index] = lineLabels[index - 1];
}
else
{
lineLabels[index] = null;
}
}
}
index++;
}
}
}
public void Emit(Instruction inst)
{
var start = Urcl.Count;
var result = new UrclInstruction(Operation.NOP)
{
A = inst.Destination.Value,
B = inst.Source.Value,
C = inst.Target.Value,
AType = inst.Destination.Immediate ? OperandType.Immediate : OperandType.Register,
BType = inst.Source.Immediate ? OperandType.Immediate : OperandType.Register,
CType = inst.Target.Immediate ? OperandType.Immediate : OperandType.Register
};
if (result.AType == OperandType.Register)
{
result.A++;
}
if (result.BType == OperandType.Register)
{
result.B++;
}
if (result.CType == OperandType.Register)
{
result.C++;
}
switch (inst.Operation)
{
case global::SpeedAsm.Operation.Set:
result.Operation = inst.Source.Immediate ? Operation.IMM : Operation.MOV;
result.CType = OperandType.None;
break;
case global::SpeedAsm.Operation.Add:
result.Operation = Operation.ADD;
break;
case global::SpeedAsm.Operation.Inc:
result.Operation = Operation.INC;
result.CType = OperandType.None;
break;
case global::SpeedAsm.Operation.Sub:
result.Operation = Operation.SUB;
break;
case global::SpeedAsm.Operation.Dec:
result.Operation = Operation.DEC;
result.CType = OperandType.None;
break;
case global::SpeedAsm.Operation.Mul:
result.Operation = Operation.MLT;
break;
case global::SpeedAsm.Operation.Div:
result.Operation = Operation.DIV;
break;
case global::SpeedAsm.Operation.Mod:
result.Operation = Operation.MOD;
break;
case global::SpeedAsm.Operation.And:
result.Operation = Operation.AND;
break;
case global::SpeedAsm.Operation.Or:
result.Operation = Operation.OR;
break;
case global::SpeedAsm.Operation.Xor:
result.Operation = Operation.XOR;
break;
case global::SpeedAsm.Operation.Not:
result.Operation = Operation.NOT;
result.CType = OperandType.None;
break;
case global::SpeedAsm.Operation.BAnd:
{
var skipB = new Label();
var skipC = new Label();
Urcl.AddRange(new[]
{
new UrclInstruction(Operation.OR, OperandType.Register, result.B, OperandType.Register, result.B, OperandType.Register, result.B),
new UrclInstruction(Operation.BRZ, skipB),
new UrclInstruction(Operation.IMM, OperandType.Register, result.B, OperandType.Immediate, 1),
new UrclInstruction(Operation.COMPILER_MARKLABEL, skipB),
new UrclInstruction(Operation.OR, OperandType.Register, result.C, OperandType.Register, result.C, OperandType.Register, result.C),
new UrclInstruction(Operation.BRZ, skipC),
new UrclInstruction(Operation.IMM, OperandType.Register, result.C, OperandType.Immediate, 1),
new UrclInstruction(Operation.COMPILER_MARKLABEL, skipC),
new UrclInstruction(Operation.AND, OperandType.Register, result.A, OperandType.Register, result.B, OperandType.Register, result.C)
});
}
break;
case global::SpeedAsm.Operation.BOr:
{
var skipB = new Label();
var skipC = new Label();
Urcl.AddRange(new[]
{
new UrclInstruction(Operation.OR, OperandType.Register, result.B, OperandType.Register, result.B, OperandType.Register, result.B),
new UrclInstruction(Operation.BRZ, skipB),
new UrclInstruction(Operation.IMM, OperandType.Register, result.B, OperandType.Immediate, 1),
new UrclInstruction(Operation.COMPILER_MARKLABEL, skipB),
new UrclInstruction(Operation.OR, OperandType.Register, result.C, OperandType.Register, result.C, OperandType.Register, result.C),
new UrclInstruction(Operation.BRZ, skipC),
new UrclInstruction(Operation.IMM, OperandType.Register, result.C, OperandType.Immediate, 1),
new UrclInstruction(Operation.COMPILER_MARKLABEL, skipC),
new UrclInstruction(Operation.OR, OperandType.Register, result.A, OperandType.Register, result.B, OperandType.Register, result.C)
});
}
break;
case global::SpeedAsm.Operation.BXor:
{
var skipB = new Label();
var skipC = new Label();
Urcl.AddRange(new[]
{
new UrclInstruction(Operation.OR, OperandType.Register, result.B, OperandType.Register, result.B, OperandType.Register, result.B),
new UrclInstruction(Operation.BRZ, skipB),
new UrclInstruction(Operation.IMM, OperandType.Register, result.B, OperandType.Immediate, 1),
new UrclInstruction(Operation.COMPILER_MARKLABEL, skipB),
new UrclInstruction(Operation.OR, OperandType.Register, result.C, OperandType.Register, result.C, OperandType.Register, result.C),
new UrclInstruction(Operation.BRZ, skipC),
new UrclInstruction(Operation.IMM, OperandType.Register, result.C, OperandType.Immediate, 1),
new UrclInstruction(Operation.COMPILER_MARKLABEL, skipC),
new UrclInstruction(Operation.XOR, OperandType.Register, result.A, OperandType.Register, result.B, OperandType.Register, result.C)
});
}
break;
case global::SpeedAsm.Operation.BNot:
{
var skipB = new Label();
var end = new Label();
Urcl.AddRange(new[]
{
new UrclInstruction(Operation.OR, OperandType.Register, result.B, OperandType.Register, result.B, OperandType.Register, result.B),
new UrclInstruction(Operation.BNZ, skipB),
new UrclInstruction(Operation.IMM, OperandType.Register, result.A, OperandType.Immediate, 1),
new UrclInstruction(Operation.BRA, end),
new UrclInstruction(Operation.COMPILER_MARKLABEL, skipB),
new UrclInstruction(Operation.MOV, OperandType.Register, result.A, OperandType.Register, 0),
new UrclInstruction(Operation.COMPILER_MARKLABEL, end),
new UrclInstruction(Operation.OR, OperandType.Register, result.A, OperandType.Register, result.A, OperandType.Register, result.A)
});
}
break;
case global::SpeedAsm.Operation.Label:
result.Operation = Operation.COMPILER_MARKLABEL;
result.AType = OperandType.Label;
result.ALabel = GetLabel(result.A);
result.BType = OperandType.None;
result.CType = OperandType.None;
break;
case global::SpeedAsm.Operation.Branch:
result.Operation = Operation.BRA;
result.AType = OperandType.Label;
result.ALabel = GetLabel(result.A);
result.BType = OperandType.None;
result.CType = OperandType.None;
break;
case global::SpeedAsm.Operation.BranchIfNotZero:
result.Operation = Operation.BNZ;
result.AType = OperandType.Label;
result.ALabel = GetLabel(result.A);
result.BType = OperandType.None;
result.CType = OperandType.None;
break;
case global::SpeedAsm.Operation.BranchIfZero:
result.Operation = Operation.BRZ;
result.AType = OperandType.Label;
result.ALabel = GetLabel(result.A);
result.BType = OperandType.None;
result.CType = OperandType.None;
break;
case global::SpeedAsm.Operation.BranchIfCarry:
result.Operation = Operation.BRC;
result.AType = OperandType.Label;
result.ALabel = GetLabel(result.A);
result.BType = OperandType.None;
result.CType = OperandType.None;
break;
case global::SpeedAsm.Operation.BranchIfSign:
result.Operation = Operation.BRN;
result.AType = OperandType.Label;
result.ALabel = GetLabel(result.A);
result.BType = OperandType.None;
result.CType = OperandType.None;
break;
case global::SpeedAsm.Operation.BranchIfNotCarry:
result.Operation = Operation.BNC;
result.AType = OperandType.Label;
result.ALabel = GetLabel(result.A);
result.BType = OperandType.None;
result.CType = OperandType.None;
break;
case global::SpeedAsm.Operation.BranchIfNotSign:
result.Operation = Operation.BRN;
result.AType = OperandType.Label;
result.ALabel = GetLabel(result.A);
result.BType = OperandType.None;
result.CType = OperandType.None;
break;
default:
throw new CompileError($"Operation is not supported for URCL: {inst.Operation}");
}
if (result.Operation != Operation.NOP)
{
Urcl.Add(result);
}
if (Urcl.Count > start)
{
foreach (var urcl in Urcl.GetRange(start, Urcl.Count - start))
{
Instructions.Enqueue(urcl);
}
}
}
private void Emit(UrclInstruction instruction)
{
Instructions.Add(instruction);
}