Date: Tue, 05 May 2009 08:17:01 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: tinguely@casselton.net Cc: channa.kad@gmail.com, freebsd-arm@freebsd.org, venkiece2005@gmail.com Subject: Re: strncmp issue Message-ID: <20090505.081701.569396874.imp@bsdimp.com> In-Reply-To: <200905051317.n45DHtKW044428@casselton.net> References: <6d53329e0905050004k27d957bve15d37113b5fedbb@mail.gmail.com> <200905051317.n45DHtKW044428@casselton.net>
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In message: <200905051317.n45DHtKW044428@casselton.net>
Mark Tinguely <tinguely@casselton.net> writes:
:
: > I have tested strncmp("abcdefg", "abcdefh", 6) without beq 2f.
: > It returns zero not -1.
: >
: > I have checked with conditional assembler but not normal assembler.
: > The beq 2f is required for normal assembler.
: > Right/Wrong?
:
: Yes, the compiler with FreeBSD-current needs the "beq 2f".
:
: Can can one do 2 unconditional "cmp" in sequence without losing the condition
: codes of the first "cmp"?
:
: I am sure this is becoming a 'bikeshed' topic. I built way more than my
: share of the shed. So, as long as it works, I will be happy.
Is the hand rolled assembler still better than what gcc can produce?
Warner
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