/arch/mips/math-emu/dsemul.h

https://bitbucket.org/evzijst/gittest · C Header · 23 lines · 14 code · 5 blank · 4 comment · 0 complexity · 3a6f96157d27851f01a3dbeb6ea6d582 MD5 · raw file 

    

  1. typedef long gpreg_t;
    2. 

  2. typedef void *vaddr_t;
    3. 

  3. 

  4. #define REG_TO_VA (vaddr_t)
    5. 

  5. #define VA_TO_REG (gpreg_t)
    6. 

  6. 

  7. int mips_dsemul(struct pt_regs *regs, mips_instruction ir, gpreg_t cpc);
    8. 

  8. int do_dsemulret(struct pt_regs *xcp);
    9. 

  9. 

  10. /* Instruction which will always cause an address error */
    11. 

  11. #define AdELOAD 0x8c000001	/* lw $0,1($0) */
    12. 

  12. /* Instruction which will plainly cause a CP1 exception when FPU is disabled */
    13. 

  13. #define CP1UNDEF 0x44400001    /* cfc1 $0,$0 undef  */
    14. 

  14. 

  15. /* Instruction inserted following the badinst to further tag the sequence */
    16. 

  16. #define BD_COOKIE 0x0000bd36 /* tne $0,$0 with baggage */
    17. 

  17. 

  18. /* Setup which instruction to use for trampoline */
    19. 

  19. #ifdef STANDALONE_EMULATOR
    20. 

  20. #define BADINST CP1UNDEF
    21. 

  21. #else
    22. 

  22. #define BADINST AdELOAD
    23. 

  23. #endif
    24.