/// <summary>
/// Move to Coprocessor from Register.
/// </summary>
private void ARM_MCR()
{
int CRm = (int)(Opcode & 0xf);
uint Opcode2 = (Opcode >> 5) & 7;
uint CoprocessorIndex = (Opcode >> 8) & 0xf;
int Rd = (int)((Opcode >> 12) & 0xf);
int CRn = (int)((Opcode >> 16) & 0xf);
uint Opcode1 = (Opcode >> 21) & 7;
if (CoprocessorIndex == 15)
{
CP15.Write(CRn, Opcode1, CRm, Opcode2, Registers[Rd]);
}
}
/// <summary>
/// Move to Register from Coprocessor.
/// </summary>
private void ARM_MRC()
{
int CRm = (int)(Opcode & 0xf);
uint Opcode2 = (Opcode >> 5) & 7;
uint CoprocessorIndex = (Opcode >> 8) & 0xf;
int Rd = (int)((Opcode >> 12) & 0xf);
int CRn = (int)((Opcode >> 16) & 0xf);
uint Opcode1 = (Opcode >> 21) & 7;
if (CoprocessorIndex == 15)
{
uint Value = CP15.Read(CRn, Opcode1, CRm, Opcode2);
if (Rd == 15)
{
Registers.CPSR = (Registers.CPSR & 0xfffffff) | (Value & 0xf0000000);
}
else
{
Registers[Rd] = Value;
}
}
}
