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    SubjectRe: [alpha] cleanup opDEC workaround
    On Wed, Nov 21, 2001 at 02:27:53PM -0800, Richard Henderson wrote:
    > Actually, the custom entIF isn't that much work. What about this?

    Hmm, I like it.
    However, if I didn't missed something again, some corrections are required.
    First, in opDEC_check_entIF r16 should be stored on the stack frame
    (PAL_rti will restore it). Also, if SRM is broken and doesn't update pc,
    we'll jump back to cvttq/svm. So I think we need something like this:

    opDEC_check_entIF: \n\
    ldq $16,8($sp) \n\
    + stq $16,24($sp) \n\
    + addq $16,4,$16 \n\
    + stq $16,8($sp) \n\
    call_pal 63 /* PAL_rti */ \n\


    "cvttq/svm $f31, $f31\n\t"
    + "nop\n\t"
    "subq $16, %0, %0"


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