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333d1f6794
VA_TO_REG. Who ever wrote this apparently did enjoy the C Puzzle Book. ISBN 0201604612, a little old but still fun reading for the next blackout ;) Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
17 lines
650 B
C
17 lines
650 B
C
extern int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc);
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extern int do_dsemulret(struct pt_regs *xcp);
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/* Instruction which will always cause an address error */
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#define AdELOAD 0x8c000001 /* lw $0,1($0) */
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/* Instruction which will plainly cause a CP1 exception when FPU is disabled */
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#define CP1UNDEF 0x44400001 /* cfc1 $0,$0 undef */
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/* Instruction inserted following the badinst to further tag the sequence */
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#define BD_COOKIE 0x0000bd36 /* tne $0,$0 with baggage */
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/* Setup which instruction to use for trampoline */
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#ifdef STANDALONE_EMULATOR
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#define BADINST CP1UNDEF
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#else
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#define BADINST AdELOAD
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#endif
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