[Bug gas/21123] New: [PowerPC] tlbie instruction restricted to two-operand form and incorrectly limits operand 2

[nholcomb at wisc dot edu]

https://sourceware.org/bugzilla/show_bug.cgi?id=21123

            Bug ID: 21123
           Summary: [PowerPC] tlbie instruction restricted to two-operand
                    form and incorrectly limits operand 2
           Product: binutils
           Version: 2.26
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gas
          Assignee: unassigned at sourceware dot org
          Reporter: nholcomb at wisc dot edu
  Target Milestone: ---

When I try to assemble the instruction "tlbie r10, r26, 1, 1, 1", gas produces
the errors: 
Error: operand out of range (26 is not between 0 and 1)
Error: junk at end of line: `1,1,1'

Looking at the PPC manual v3.0, TLBIE has two forms:

tlbie RB,RS,RIC,PRS,R (<-- the form I used)
and
tlbie RB,RS (equivalent to tlbie RB,RS,0,0,0)

I can't find any documentation about a restriction on which register is used
for RS in the manual. Ideally, either instruction form would be accepted as
well.

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