x86_64_sse2_x87/fasm/examples/x86/include/ext/fsgsbase.inc

   1 \r
   2 iterate <instr,postbyte>, rdfsbase,0, rdgsbase,1, wrfsbase,2, wrgsbase,3\r
   3 \r
   4         macro instr? dest*\r
   5                 if x86.mode = 64\r
   6                         x86.parse_operand @dest,dest\r
   7                         if @dest.type = 'reg'\r
   8                                 if @dest.size >= 4\r
   9                                         @dest.opcode_prefix = 0F3h\r
  10                                         x86.select_operand_prefix @dest,@dest.size\r
  11                                         x86.store_instruction <0Fh,0AEh>,@dest,postbyte\r
  12                                 else\r
  13                                         err 'invalid operand size'\r
  14                                 end if\r
  15                         else\r
  16                                 err 'invalid operand'\r
  17                         end if\r
  18                 else\r
  19                         err 'instruction requires long mode'\r
  20                 end if\r
  21         end macro\r
  22 \r
  23 end iterate\r
  24 \r