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| From: | Nate Eldredge <neldredge AT hmc DOT edu> |
| Newsgroups: | comp.os.msdos.djgpp |
| Subject: | Re: AMD processors and assembly language |
| Date: | 12 Mar 2000 16:31:25 -0800 |
| Organization: | InterWorld Communications |
| Lines: | 22 |
| Message-ID: | <83zos3d82q.fsf@mercury.st.hmc.edu> |
| References: | <01JMWIIY2ZT69ASSJ4 AT SLU DOT EDU> <qb2lcsc0ari409khrt7sdnehdl8i4uk05j AT 4ax DOT com> |
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| NNTP-Posting-Date: | 13 Mar 2000 00:33:37 GMT |
| User-Agent: | Gnus/5.0802 (Gnus v5.8.2) Emacs/20.5 |
| To: | djgpp AT delorie DOT com |
| DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
| Reply-To: | djgpp AT delorie DOT com |
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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