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From: | Richard Henderson |
Subject: | Re: [Qemu-devel] [PATCH 03/13] target-openrisc: Separate of load/store instructions |
Date: | Tue, 29 Oct 2013 14:49:19 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.0 |
On 10/29/2013 02:36 PM, Sebastian Macke wrote: > > The problem is the epcr register in the interrupt routine in which the current > pc must be saved. I assume the epcr register is quite predictable based on the insn stream. One can restore more than just the PC during re-translation. C.f. the s390 port which also restores CC_OP, and the sparc port which also restores NPC (next pc). r~
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