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powerpc: Add emulation for the addpcis instruction
The addpcis instruction puts the sum of the next instruction address plus a constant into a register. Since the result depends on the address of the instruction, it will give an incorrect result if it is single-stepped out of line, which is what the *probes subsystem will currently do if a probe is placed on an addpcis instruction. This fixes the problem by adding emulation of it to analyse_instr(). Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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