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    SubjectRe: [PATCH 08/60] microblaze_v4: exception handling



    > 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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