Messages in this thread | | | Date | Thu, 22 Nov 2001 13:55:50 +0300 | From | Ivan Kokshaysky <> | Subject | Re: [alpha] cleanup opDEC workaround |
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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\
and
"cvttq/svm $f31, $f31\n\t" + "nop\n\t" "subq $16, %0, %0"
No?
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