internal override MipsInstruction Decode(uint wInstr, MipsDisassembler dasm)
{
var instr = base.Decode(wInstr, dasm);
var imm = instr.op3 as ImmediateOperand;
if (imm != null && imm.Value.IsIntegerZero)
{
return new MipsInstruction {
Address = instr.Address,
Length = instr.Length,
opcode = Opcode.nop
}
}
;
else
{
return(instr);
}
}
public override MipsInstruction Decode(uint wInstr, MipsDisassembler dasm)
{
foreach (var m in mutators)
{
if (!m(wInstr, dasm))
{
return(new MipsInstruction
{
InstructionClass = InstrClass.Invalid,
Mnemonic = Mnemonic.illegal
});
}
}
return(new MipsInstruction
{
Mnemonic = mnemonic,
InstructionClass = iclass,
Address = dasm.addr,
Length = 4,
Operands = dasm.ops.ToArray()
});
}
internal override MipsInstruction Decode(uint wInstr, MipsDisassembler dasm)
{
foreach (var m in mutators)
{
if (!m(wInstr, dasm))
{
return(new MipsInstruction
{
iclass = InstrClass.Invalid,
opcode = Opcode.illegal
});
}
}
return(new MipsInstruction
{
opcode = opcode,
iclass = iclass,
Address = dasm.addr,
Length = 4,
op1 = dasm.ops.Count > 0 ? dasm.ops[0] : null,
op2 = dasm.ops.Count > 1 ? dasm.ops[1] : null,
op3 = dasm.ops.Count > 2 ? dasm.ops[2] : null,
});
}
internal override MipsInstruction Decode(uint wInstr, MipsDisassembler dasm)
{
return(dasm.DecodeOperands(opcode, wInstr, format));
}
internal override MipsInstruction Decode(uint wInstr, MipsDisassembler dasm)
{
var opcode = ((wInstr & (1u << 16)) != 0) ? opTrue : opFalse;
return(dasm.DecodeOperands(opcode, wInstr, "c18,j"));
}
internal override MipsInstruction Decode(uint wInstr, MipsDisassembler dasm)
{
return(oprecs[wInstr & 0x3F].Decode(wInstr, dasm));
}
internal abstract MipsInstruction Decode(uint wInstr, MipsDisassembler dasm);
internal override MipsInstruction Decode(uint wInstr, MipsDisassembler dasm)
{
var opcode = opcodes[(wInstr >> 16) & 0x1F];
return(dasm.DecodeOperands(opcode, wInstr, "R1,j"));
}
public override MipsInstruction Decode(uint wInstr, MipsDisassembler dasm)
{
var decoder = ((wInstr & (1u << 16)) != 0) ? opTrue : opFalse;
return(decoder.Decode(wInstr, dasm));
}
internal override MipsInstruction Decode(uint wInstr, MipsDisassembler dasm)
{
var opcode = ((wInstr & (1u << 16)) != 0) ? opTrue : opFalse;
return(dasm.DecodeOperands(wInstr, opcode, InstrClass.ConditionalTransfer | InstrClass.Delay, "c18,j"));
}
internal override MipsInstruction Decode(uint wInstr, MipsDisassembler dasm)
{
var decoder = decoders[(wInstr >> 16) & 0x1F];
return(decoder.Decode(wInstr, dasm));
}
internal override MipsInstruction Decode(uint wInstr, MipsDisassembler dasm)
{
int iDecoder = (int)((wInstr >> shift) & mask);
return(decoders[iDecoder].Decode(wInstr, dasm));
}