Mail Archives: djgpp/2000/03/13/03:52:37
Damian Yerrick <DONT DOT YOU DOT DAREd_yerrick AT hotmail DOT comSEND DOT SPAM> writes:
> On Sat, 11 Mar 2000 10:22:23 -0600 (CST), GAMMELJL AT SLU DOT EDU wrote:
>
> > In high precision arithmetic, the assembly language commands
> >mul, div, and adc are essential. In the 486 architecture, these
> >commands are efficient. In the alpha architecture, they do not exist.
>
> WTF? Compaq's Alpha doesn't have multiply, divide, and add?
According to the Alpha Architecture Handbook
(ftp://ftp.digital.com/pub/Digital/info/semiconductor/literature/alphaahb.pdf),
there is no integer divide instruction, and no add-with-carry
instruction. The Alpha does have an integer multiply instruction, and
also a floating-point divide.
That's what RISC is about. :)
--
Nate Eldredge
neldredge AT hmc DOT edu
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