[DOTNET-ROTOR] Assembly codes in jitinterfacex86.cpp

[Archana]

Hi,
 Is there any documentation regarding the opcodes used in the file
jitinterfacex86.cpp and how the intel opcodes are mapped onto these codes
  for example this is a piece of code from vm/i386/cgencpu.cpp,

      // cmp ebx,0
      Emit16(0xfb83);
      Emit8(0);
if one needs to write
     // cmp edx,0

what parameter should be passed to Emit16 etc..

Thanks,
archana