Messages in this thread | | | Date | Thu, 26 Jun 2008 21:19:53 +0200 | From | Michal Simek <> | Subject | Re: [PATCH 08/60] microblaze_v4: exception handling |
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> On Thu, Jun 26, 2008 at 5:29 AM, <monstr@seznam.cz> wrote: >> +ex_sw: >> + /* Get the destination register number into r5 */ >> + lbui r5, r0, ex_reg_op; >> + /* Form store_word jump table offset (sw_table + (8 * regnum)) */ >> + la r6, r0, sw_table; >> + add r5, r5, r5; >> + add r5, r5, r5; >> + add r5, r5, r5; >> + add r5, r5, r6; >> + bra r5; > > Possibly stupid question: This is part of the unaligned store word > exception handler, yes? Shouldn't the above add's be addk's to > preserve the state of the carry register pre/post store?
I don't think that addk is important. I have some tests for exception, I want to cover full exception handling.
M
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