small comments on section 5

All,

Given that we did not finish the review of chapter 5 in this week's 
telecon, I'll post a couple of smaller remarks I have. The remarks are 
those I wrote down when reviewing the first version of Geoffrey's 
document, so numbering might be off...

section 5.3.1 3rd paragraph: there are different restrictions for branch 
contribution statements and indirect branch assignments. What is the 
reason for this? If the reasons are valid, should they be explained -- if 
not, should they be removed?

section 5.3.2 syntax box: the first BNF clause has as its left-hand side 
the token indirect_contribution_statement. However, both the section as 
well as the caption of the syntax bx relate to indirect_branch_assignment.

Regards,
Marq