[Bug gas/21262] New: EVUIMM_8 mask and shift are invalid

[alfedotov at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=21262

            Bug ID: 21262
           Summary: EVUIMM_8 mask and shift are invalid
           Product: binutils
           Version: 2.28
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gas
          Assignee: unassigned at sourceware dot org
          Reporter: alfedotov at gmail dot com
  Target Milestone: ---

Created attachment 9902
  --> https://sourceware.org/bugzilla/attachment.cgi?id=9902&action=edit
evldd insn description

I suspect that in current SPE instructions with EVUIMM_8, EVUIMM_4 and EVUIMM_2
operands current mask and shift values are invalid.

For instance "evldd" has EVUIMM_8. And EVUIMM_8 has  mask=0xf8 and  shift=8.
While regular EVUIMM has mask=0x1f and shift=11 what is fine.
EVUIMM_8 and regular EVUIMM operands have the one place in instruction bits
[16:20]


>From my point of view:
EVUIMM_2 should have mask=0x1e
EVUIMM_4 should have mask=0x1c
EVUIMM_8 should have mask=0x18

Shift for all of the must be the same as in EVUIMM = 11.

Alexander

-- 
You are receiving this mail because:
You are on the CC list for the bug.