[Info-vax] VMS port to x86

[John Reagan]

"Bob Koehler"  wrote in message 
news:ryFmpNcXtFN$@eisner.encompasserve.org...



>  How many instructions in lib$insqXi on IA64?

The code checks for operand alignment, raises to IPL 14, disables 
interrupts, uses the 'tak' instruction (an esoteric Itanium instruction to 
look in translation buffers and page tables), locks the header, probes the 
header, probes the predecessor, restores interrupts, lowers IPL, checks for 
pending ASTs, etc.

I counted 60 bundles in the best case but there are retry paths if the 'tak' 
fails, etc.