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- Xref: sparky comp.sys.mips:1029 comp.arch:10544
- Newsgroups: comp.sys.mips,comp.arch
- Path: sparky!uunet!mcsun!sunic!lth.se!wilmer!ulf
- From: ulf@wilmer.dit.lth.se (Ulf Andersson)
- Subject: Need details on Idt R3082 mips implemmentation.
- Message-ID: <ULF.92Nov9163433@wilmer.dit.lth.se>
- Sender: newsuser@lth.se (LTH network news server)
- Reply-To: ulf@dit.lth.se
- Organization: Lund Institute of Technology, Sweden
- Distribution: comp
- Date: 9 Nov 92 16:34:33
- Lines: 40
-
- Hello.
-
- I need some information on multiply and divide instructions
- on the Idt 3082 implementation of the mips processor.
-
- The hardware manual for the 3082 processor say that the
- pipeline stalls on a multiply or divide instruction if
- I try to read the High or Low register before completion.
- The manual also recommend the compiler to place as many
- unrelated instructions as possible immediately after a
- multiply or divide. What the manual does not tell me is
- how many cycles a multiply or divide actually takes.
-
- If somebody know something about this I would appreciate
- some enlightenment.
-
- To avoid uneccecary network noise please send direct E-
- mail to me.
-
- ------------------------------------------------------------------------------
- Ulf Andersson Student, Computer Engineering Ack ja, livet er svaert,
- Lund University (LTH) men matematik er svaerere.
- Lund, SWEDEN (Storm P)
-
- Phone: +46 (0)418-22992
- Snail mail: Skolallen 13 E mail: ulf@dit.lth.se
- S261 32
- SWEDEN
- ------------------------------------------------------------------------------
- --
- ------------------------------------------------------------------------------
- Ulf Andersson Student, Computer Engineering Ack ja, livet er svaert,
- Lund University (LTH) men matematik er svaerere.
- Lund, SWEDEN (Storm P)
-
- Phone: +46 (0)418-22992
- Snail mail: Skolallen 13 E mail: ulf@dit.lth.se
- S261 32
- SWEDEN
- ------------------------------------------------------------------------------
-