public void Run(IVirtualMachine Runtime, int[] args, char[] types)
{
if (types[0] != 0)
{
throw new VMException(VMFault.InvalidArgs, $"strb，参数错误");
}
int data = Runtime.Read(args[0]);
int address = args[1];
if (types[1] == 0)
{
address = Runtime.Read(args[1]);
}
int offset = args[2];
if (types[2] == 0)
{
offset = Runtime.Read(args[2]);
}
address += offset / 4;
int oringnal = Runtime.Read(address);
int shift = offset % 4;
int tmp = ~(0x000000ff << (shift * 8));
oringnal &= tmp;
data = data << (shift * 8);
oringnal |= data;
Runtime.Write(address, oringnal);
}
public void Run(IVirtualMachine Runtime, int[] args, char[] types)
{
if (types[0] != 0)
{
throw new VMException(VMFault.InvalidArgs);
}
int memoryAddr;
if (types[1] == 0)
{
memoryAddr = Runtime.Read(args[1]);
}
else
{
memoryAddr = args[1];
}
int offset = args[2];
if (types[2] == 0)
{
offset = Runtime.Read(args[2]);
}
Runtime.Write(args[0], Runtime.Read(memoryAddr + offset));
}
public void Run(IVirtualMachine Runtime, int[] args, char[] types)
{
int addr = 0;
if (types[0] == 0)
{
addr = Runtime.Read(args[0]);
}
else
{
addr = args[0];
}
string result = "";
while (true)
{
for (int shift = 0; shift < 4; shift++)
{
int oringnal = Runtime.Read(addr);
int tmp = 0x000000ff << (shift * 8);
oringnal &= tmp;
char data = (char)(oringnal >> (shift * 8));
if (data == '\0')
{
goto end;
}
result += data;
}
addr++;
}
end : Console.WriteLine(result);
}
public void Run(IVirtualMachine Runtime, int[] args, char[] types)
{
if (types[0] != 0)
{
throw new VMException(VMFault.InvalidArgs);
}
int opdata1 = types[1] != 0 ? args[1] : Runtime.Read(args[1]);
int opdata2 = types[2] != 0 ? args[2] : Runtime.Read(args[2]);
Runtime.Write(args[0], opdata1 - opdata2);
}
public void Run(IVirtualMachine Runtime, int[] args, char[] types)
{
if (types[0] != 0 || types[1] != 0)
{
throw new VMException(VMFault.InvalidArgs);
}
int opdata1 = Runtime.Read(args[0]);
int opdata2 = Runtime.Read(args[1]);
if (opdata1 >= opdata2)
{
Runtime.cpsr |= 0x00000001;
}
else
{
Runtime.cpsr &= ~0x00000001;
}
}
public void Run(IVirtualMachine Runtime, int[] args, char[] types)
{
int pcAddr = args[0];
if (types[0] == 0)
{
pcAddr = Runtime.Read(args[0]);
}
Runtime.pc = pcAddr;
}
public void Run(IVirtualMachine Runtime, int[] args, char[] types)
{
if (types[0] != 0)
{
throw new VMException(VMFault.InvalidArgs, $"pop，参数错误");
}
int value = Runtime.Read(--Runtime.sp);
Runtime.Write(args[0], value);
}
public void Run(IVirtualMachine Runtime, int[] args, char[] types)
{
if (types[0] == 0)
{
Console.WriteLine(Runtime.Read(args[0]));
}
else
{
Console.WriteLine(args[0]);
}
}
public void Run(IVirtualMachine Runtime, int[] args, char[] types)
{
if (types[0] != 0)
throw new VMException(VMFault.InvalidArgs, $"ldrb，参数错误");
int data;
int address = args[1];
if (types[1] == 0)
address = Runtime.Read(args[1]);
int offset = args[2];
if (types[2] == 0)
offset = Runtime.Read(args[2]);
//偏移后的基地址
address += offset / 4;
int oringnal = Runtime.Read(address);
int shift = offset % 4;
int tmp = 0x000000ff << (shift * 8);
oringnal &= tmp;
data = oringnal >> (shift * 8);
Runtime.Write(args[0], data);
}
public void Run(IVirtualMachine Runtime, int[] args, char[] types)
{
int pcAddr = args[0];
if (types[0] == 0)
{
pcAddr = Runtime.Read(args[0]);
}
IVirtualMachine vm = Runtime.CopyVM();
Task.Run(() =>
{
vm.Continue(pcAddr);
});
}
public void Run(IVirtualMachine Runtime, int[] args, char[] types)
{
if ((Runtime.cpsr & 0x00000001) == 0)
{
return;
}
int pcAddr = args[0];
if (types[0] == 0)
{
pcAddr = Runtime.Read(args[0]);
}
Runtime.pc = pcAddr;
Runtime.cpsr &= (~0x00000001);
}
public void Run(IVirtualMachine Runtime, int[] args, char[] types)
{
if (types[0] != 0)
{
throw new VMException(VMFault.InvalidArgs, $"mov，参数错误");
}
int opdata;
if (types[1] == 0)
{
opdata = Runtime.Read(args[1]);
}
else
{
opdata = args[1];
}
Runtime.Write(args[0], opdata);
}