static List<CStatement> And_C(uint pc, uint instruction)
{
Instruction i = new Instruction(instruction);
/* op1 & op2 */
CStatement stat = new CStatement(CStatement.Kinds.And, RegName(i.RS()), RegName(i.RB()));
/* dest = expr */
CStatement ass = new CStatement(CStatement.Kinds.Assignment, RegName(i.RA()), stat);
List<CStatement> stats = new List<CStatement>();
stats.Add(ass);
if (i.RC())
stats.Add(new CStatement(CStatement.Kinds.Assignment, "cr0", RegName(i.RA())));
return stats;
}
static List<CStatement> Add_C(uint pc, uint instruction)
{
Instruction i = new Instruction(instruction);
/* op1 + op2 */
CStatement stat = new CStatement(CStatement.Kinds.Addition, RegName(i.RA()), RegName(i.RB()));
/* dest = expr */
CStatement ass = new CStatement(CStatement.Kinds.Assignment, RegName(i.RD()), stat);
List<CStatement> stats = new List<CStatement>();
stats.Add(ass);
if (i.OE())
MessageBox.Show("This instruction sets the O bit. I don't know how to translate it! Ignoring.");
if (i.RC())
stats.Add(new CStatement(CStatement.Kinds.Assignment, "cr0", RegName(i.RD())));
return stats;
}
static List<CStatement> Lbzx_C(uint pc, uint instruction)
{
Instruction i = new Instruction(instruction);
CStatement stat = new CStatement(CStatement.Kinds.Assignment, RegName(i.RD()));
stat.OperandSizes = CStatement.Sizes.Byte;
if (i.RA() != 0)
{
if (i.RB() != 0)
stat.Op2 = new CStatement.COperand(RegName(i.RA()), RegName(i.RB()));
else
stat.Op2 = new CStatement.COperand(RegName(i.RA()), 0);
}
else
stat.Op2 = new CStatement.COperand(RegName(i.RB()), 0);
List<CStatement> stats = new List<CStatement>();
stats.Add(stat);
return stats;
}
static List<CStatement> Cmp_C(uint pc, uint instruction)
{
Instruction i = new Instruction(instruction);
CStatement stat = new CStatement(CStatement.Kinds.Subtraction, RegName(i.RA()), RegName(i.RB()));
CStatement ass = new CStatement(CStatement.Kinds.Assignment, "cr" + i.CRFD(), stat);
if (!i.CmpLong())
ass.OperandSizes = stat.OperandSizes = CStatement.Sizes.Int;
List<CStatement> stats = new List<CStatement>();
stats.Add(ass);
return stats;
}
static List<CStatement> Or_C(uint pc, uint instruction)
{
Instruction i = new Instruction(instruction);
CStatement stat;
if (i.RS() == 0 && i.RB() != 0)
stat = new CStatement(CStatement.Kinds.Assignment, RegName(i.RA()), RegName(i.RB()));
else if (i.RB() == 0 && i.RS() != 0)
stat = new CStatement(CStatement.Kinds.Assignment, RegName(i.RA()), RegName(i.RS()));
else if (i.RS() == i.RB())
{
if (i.RS() != 0)
stat = new CStatement(CStatement.Kinds.Assignment, RegName(i.RA()), RegName(i.RS()));
else
stat = new CStatement(CStatement.Kinds.Assignment, RegName(i.RA()), 0);
}
else
{
CStatement or = new CStatement(CStatement.Kinds.Or, RegName(i.RS()), RegName(i.RB()));
or.OperandSizes = CStatement.Sizes.Long;
stat = new CStatement(CStatement.Kinds.Assignment, RegName(i.RA()), or);
}
stat.OperandSizes = CStatement.Sizes.Long;
List<CStatement> stats = new List<CStatement>();
stats.Add(stat);
if (i.RC())
stats.Add(new CStatement(CStatement.Kinds.Assignment, "cr0", RegName(i.RA())));
return stats;
}
