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Mentioned 52 bit address spaces.

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@ -189,6 +189,9 @@ require 6 bytes to hold them. A virtual address space is all of the
addresses a process can generate / use. Further, all addresses used addresses a process can generate / use. Further, all addresses used
by processes are virtual addresses. by processes are virtual addresses.
Kernels supporting other VA spaces, including 52 bit address spaces
are possible but less common.
The salient point is that even six bytes is far too large to fit in a The salient point is that even six bytes is far too large to fit in a
four byte instruction. GDB is masking the pseudo instruction and showing four byte instruction. GDB is masking the pseudo instruction and showing
what the effective addresses are.** what the effective addresses are.**