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[Bug gas/27906] New: doc for x86 incorrectly says that movsb is an alias


From: sebastien at debian dot org
Subject: [Bug gas/27906] New: doc for x86 incorrectly says that movsb is an alias for movsbq
Date: Mon, 24 May 2021 17:50:54 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=27906

            Bug ID: 27906
           Summary: doc for x86 incorrectly says that movsb is an alias
                    for movsbq
           Product: binutils
           Version: 2.37 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gas
          Assignee: unassigned at sourceware dot org
          Reporter: sebastien at debian dot org
  Target Milestone: ---

Created attachment 13468
  --> https://sourceware.org/bugzilla/attachment.cgi?id=13468&action=edit
Patch

The documentation (in i386 Dependent features, section “i386-Mnemonics”, file
c-i386.texi) says that movsb is an alias for movsbq. However, movsb is a
different instruction (byte-sized movs). The intended alias is rather movsxb.

A patch is attached for clarity.

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