lib/3rdparty/softx86/softx87/optab87.h

   1
   2 // return value:
   3 // 0 = opcode not recognized
   4 // 1 = opcode recognized, parsing complete
   5 // 2 = opcode recognized, more parsing needed (i.e., prefix)
   6 typedef int (*Sfx87OpcodeExec)(sx86_ubyte opcode,softx87_ctx* ctx);
   7 typedef int (*Sfx87OpcodeDec)(sx86_ubyte opcode,softx87_ctx* ctx,char buf[128]);
   8
   9 typedef struct {
  10         Sfx87OpcodeExec                 exec;
  11         Sfx87OpcodeDec                  dec;
  12 } Sfx87Opcode;
  13
  14 /* for sanity's sake we only look at the
  15    upper 3 bits of the 11-bit opcode.
  16    the opcode arrangement of FPU opcodes
  17    makes a lot less sense than the CPU
  18    opcode arrangement. */
  19 typedef struct {
  20         Sfx87Opcode                     table[8];
  21 } Sfx87OpcodeTable;
  22
  23 extern Sfx87OpcodeTable                 optab8087;
  24
  25 extern char                             s87op1_tmp[32];
  26 extern char                             s87op2_tmp[32];