arch/mips/math-emu/dsemul.h

   1 extern int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc);
   2 extern int do_dsemulret(struct pt_regs *xcp);
   3
   4 /* Instruction which will always cause an address error */
   5 #define AdELOAD 0x8c000001      /* lw $0,1($0) */
   6 /* Instruction which will plainly cause a CP1 exception when FPU is disabled */
   7 #define CP1UNDEF 0x44400001    /* cfc1 $0,$0 undef  */
   8
   9 /* Instruction inserted following the badinst to further tag the sequence */
  10 #define BD_COOKIE 0x0000bd36 /* tne $0,$0 with baggage */
  11
  12 /* Setup which instruction to use for trampoline */
  13 #ifdef STANDALONE_EMULATOR
  14 #define BADINST CP1UNDEF
  15 #else
  16 #define BADINST AdELOAD
  17 #endif