public static InstructionJ Emit(InstructionMnemonic mnemonic, int address)
{
var instruction = ISA.GetInstruction(mnemonic);
if (instruction.Format != InstructionFormat.J)
{
throw new Exception("Wrong instruction type.");
}
return(new InstructionJ {
Instruction = instruction.Instruction,
OpCode = instruction.OpCode,
Address = address
});
}
public static InstructionI Emit(InstructionMnemonic mnemonic,
CpuReg rs, CpuReg rt,
int immediate)
{
var instruction = ISA.GetInstruction(mnemonic);
if (instruction.Format != InstructionFormat.I)
{
throw new Exception("Wrong instruction type.");
}
return(new InstructionI {
Instruction = instruction.Instruction,
OpCode = instruction.OpCode,
Rs = rs,
Rt = rt,
Immediate = immediate
});
}
public static InstructionR Emit(InstructionMnemonic mnemonic,
CpuReg rs, CpuReg rt, CpuReg rd,
int shamt)
{
var instruction = ISA.GetInstruction(mnemonic);
if (instruction.Format != InstructionFormat.R)
{
throw new Exception("Wrong instruction type.");
}
return(new InstructionR {
Instruction = instruction.Instruction,
OpCode = instruction.OpCode,
Rs = rs,
Rt = rt,
Rd = rd,
Shamt = shamt,
Funct = instruction.Function
});
}
