atkins@marlin.NOSC.MIL (Hugh T. Atkins) (07/03/90)
Is there any such thing as an accelerator for an HP9920 computer ? We are doing some real-time waveform generation and would like to do it faster. Unfortunately we're stuck with the 9920 and with performing the calculations in memory (as opposed to look-up table etc.). Thanks , __ Hugh
rjn@hpfcso.HP.COM (Bob Niland) (07/03/90)
re: > Is there any such thing as an accelerator for an HP9920 computer ? We > are doing some real-time waveform generation and would like to do it > faster. Unfortunately we're stuck with the 9920 and with performing > the calculations in memory (as opposed to look-up table etc.). What sort of calculations (fixed vs float), running what operating system (BASIC, CP/M, Forth, HPL, HP-UX or Pascal) and on what CPU (68000, 68010, 8 or 12 Mhz)? There is a 98635A floating point card available from HP, that is supported by BASIC, HP-UX and Pascal. The 12 MHz CPU upgrade may also still available. I have also seen adverts for Series-200-compatible 3rd-party 68020 CPU/RAM boards running at higher speeds, but about these I know nothing, and I suspect they only work with BASIC and Pascal. Regards, Hewlett-Packard Bob Niland Internet: rjn@hpfcrjn.FC.HP.COM 3404 East Harmony Road UUCP: [hplabs|hpfcse]!hpfcrjn!rjn Ft Collins CO 80525-9599 This response does not represent the official position of, or statement by, the Hewlett-Packard Company. The above data is provided for informational purposes only. It is supplied without warranty of any kind.
stanb@hpnmdla.HP.COM (Stan Bischof) (07/03/90)
If I remember correctly, this is the series 200 modular computer, in which case there are a couple of options- Floating Point Accelerator (98635) will definitely help if you are doing floating point calculations in your waveform generation. Are you programming in BASIC? If so, try the Basic COMPILER, which should speed things up nicely. Be sure to compile the code to use the 98635. Are you programming in PASCAL? If so be sure to compile with floating point (98635) ONLY option set. This is fastest code. I assume you are not reading/writing from disk or doing anything else dumb while trying to generate fast data! Stan Bischof HP-NMD THE USUAL DISCLAIMER: This is personal opinion only and in no way reflects any official HP answer.
steve-t@hpfcso.HP.COM (Steve Taylor) (07/03/90)
/comp.sys.hp/rjn@hpfcso.HP.COM (Bob Niland)/11:16pm Jul 2,1990/ } re: > Is there any such thing as an accelerator for an HP9920 computer ? } I have also seen adverts for Series-200-compatible 3rd-party 68020 CPU/RAM } boards running at higher speeds, but about these I know nothing, and I } suspect they only work with BASIC and Pascal. Such as the one on page 7 of the June 1990 issue of _Workstation_ magazine. An introductory item in a previous issue specifically said these don't work with HP-UX. I know nothing about these cards beyond having seen the ads. The ad does list the 220 (9920) as a target machine. } This response does not represent the official position of, or statement by, } the Hewlett-Packard Company. The above data is provided for informational } purposes only. It is supplied without warranty of any kind. Goes for me, too. ---------- Regards, Steve taylor NOT A STATEMENT, OFFICIAL OR OTHERWISE, OF THE HEWLETT-PACKARD COMPANY.