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