public void DecExecDP_RegReg_MUL_Success()
{
// e0050291 mul r5, r1, r2
Memory regs = new Memory(regsize);
regs.WriteWord(Reg.R2, 0x1014);
uint uop = 0xA1000000; int op = (int)~uop; op = ~op;
regs.WriteWord(Reg.R1, op);
regs.WriteWord(Reg.R2, 0x1050);
uint u = 0xe0050291;
int r = Convert.ToInt32(~u); r = ~r;
Instruction inst = new DataProcessing(r, ref regs);
inst = new DataProcessing(r, ref regs);
inst.Decode();
inst.Execute();
uop = 0x50000000; op = (int)~uop; op = ~op;
int res = regs.ReadWord(Reg.R5);
Assert.IsTrue(res == op);
Assert.IsTrue(inst.ToString() == "mul r5, r1, r2");
}
public void DecExecDP_RegImm_Success()
{
// eor r1, r2, r3, lsr #2
uint u = 0b11100000001000100001000100100011;
int r = Convert.ToInt32(~u);
r = ~r;
Memory regs = new Memory(regsize);
regs.WriteWord(Reg.R2, 4);
regs.WriteWord(Reg.R3, 3);
//using not on original command code because c# won't let me alter the sign bit.
Instruction inst = new DataProcessing(r, ref regs);
inst.Decode();
inst.Execute();
int exp = 3 >> 2;
int res = regs.ReadWord(Reg.R1);
Assert.IsTrue(res == (4 ^ exp));
Assert.IsTrue(inst.ToString() == "eor r1, r2, r3, lsr #2");
}
public void DecExecDP_RegReg_ADD_Success()
{
//add r1, r2, r3, ror r4
uint u = 0b11100000100000100001010001110011;
int r = Convert.ToInt32(~u);
r = ~r;
Memory regs = new Memory(regsize);
regs.WriteWord(Reg.R2, 4);
regs.WriteWord(Reg.R3, 3);
regs.WriteWord(Reg.R4, 5);
//using not on original command code because c# won't let me alter the sign bit.
Instruction inst = new DataProcessing(r, ref regs);
inst.Decode();
inst.Execute();
int exp = (((3) >> (5)) | ((3) << (32 - (5)))); //ror
int res = regs.ReadWord(Reg.R1);
Assert.IsTrue(res == (4 + exp));
Assert.IsTrue(inst.ToString() == "add r1, r2, r3, ror r4");
}
public void DecExec_DP_Imm_Mov_Success()
{
//e3a02030 mov r2, #48
Memory regs = new Memory(regsize);
//using not on original command code because c# won't let me alter the sign bit.
int r = ~0x1C5FDFCF; //Original command: e3a02030
DataProcessing inst = new DataProcessing(r, ref regs);
inst.Decode();
inst.Execute();
Assert.IsTrue(inst.ToString() == "mov r2, #48");
Assert.IsTrue(regs.ReadWord(Reg.R2) == 48);
}
public void DecExecDP_Imm_MOV_Success()
{
Memory regs = new Memory(regsize);
// mov r1, #-1593835520
uint u = 0xe3a014a1;
int r = Convert.ToInt32(~u);
r = ~r; DataProcessing inst = new DataProcessing(r, ref regs);
inst.Decode();
inst.Execute();
Assert.IsTrue(regs.ReadWord(Reg.R1) == -1593835520);
Assert.IsTrue(inst.ToString() == "mov r1, #-1593835520");
}
public void DecExec_DP_Imm_Mov2_Success()
{
// mov r0, #724
uint u = 0xe3a00fb5;
int r = Convert.ToInt32(~u);
r = ~r;
Memory regs = new Memory(regsize);
DataProcessing inst = new DataProcessing(r, ref regs);
inst.Decode();
inst.Execute();
Assert.IsTrue(regs.ReadWord(Reg.R0) == 724);
Assert.IsTrue(inst.ToString() == "mov r0, #724");
}
public void DecExecDP_RegImm_MOV_Success()
{
Memory regs = new Memory(regsize);
// mov r0, #724
regs.WriteWord(Reg.R2, 4);
regs.WriteWord(Reg.R0, 3);
uint u = 0xe1a02000;
int r = Convert.ToInt32(~u);
r = ~r; DataProcessing inst = new DataProcessing(r, ref regs);
inst.Decode();
inst.Execute();
Assert.IsTrue(regs.ReadWord(Reg.R2) == 3);
Assert.IsTrue(inst.ToString() == "mov r2, r0");
}
public void DecExecDP_RegImm_ASR_Success()
{
Memory regs = new Memory(regsize);
// e1a02141 asr r2, r1, #2
regs.WriteWord(Reg.R2, 0x1014);
uint uop = 0xA1000000; int op = (int)~uop; op = ~op;
regs.WriteWord(Reg.R1, op);
uint u = 0xe1a02141;
int r = Convert.ToInt32(~u);
r = ~r; DataProcessing inst = new DataProcessing(r, ref regs);
inst.Decode();
inst.Execute();
uop = 0xE8400000; op = (int)~uop; op = ~op;
Assert.IsTrue(regs.ReadWord(Reg.R2) == op);
Assert.IsTrue(inst.ToString() == "mov r2, r1, asr #2");
}
public void DecExecDP_RegImm_ORR_Success()
{
Memory regs = new Memory(regsize);
// e3802012 orr r2, r0, #18
regs.WriteWord(Reg.R2, 0x1014);
uint uop = 0x000002D4; int op = (int)~uop; op = ~op;
regs.WriteWord(Reg.R0, op);
uint u = 0xe3802012;
int r = Convert.ToInt32(~u);
r = ~r;
DataProcessing inst = new DataProcessing(r, ref regs);
inst.Decode();
inst.Execute();
uop = 0x000002D6; op = (int)~uop; op = ~op;
Assert.IsTrue(regs.ReadWord(Reg.R2) == op);
Assert.IsTrue(inst.ToString() == "orr r2, r0, #18");
}