HP28S (ROM)
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From: RR on 11 Jan 2006 12:34 Hello, I've been using an HP28S for several years and I've heard there is an emulator for windows. I've also been told that I need the ROM image for using the emulator. Is it possible to download the HP-28S rom image from somewhere? Or do I have to extract it from my real calculator? I have a laptop with an infrared port but I don't lnow how to do the transfer. Anyone can help? Thank you in advance. Regards RR
From: Gerson W. Barbosa on 11 Jan 2006 19:43 RR wrote: > Hello, > > I've been using an HP28S for several years and I've heard there is an > emulator for windows. I've also been told that I need the ROM image for > using the emulator. > > Is it possible to download the HP-28S rom image from somewhere? Or do I > have to extract it from my real calculator? I have a laptop with an > infrared port but I don't lnow how to do the transfer. > > Anyone can help? > > Thank you in advance. Regards > > RR Unlike the HP-48 ROMs, the HP-28S ROM is not publicly available. You'll have to extract it from your real 28S. You can find complete instructions, and the emulator itself, at Cristoph Giesselink's website: http://privat.swol.de/ChristophGiesselink/emu28.htm Regards, Gerson.
From: fbarbaise on 12 Jan 2006 05:37 for the HP-28C emulator, use Emu28 and for the HP-28S emulator, use Emu42 from Christoph Giesslink's site. You'll find also a complete instruction set to extract the ROM on his site. The extraction of the ROM takes a while. I advise you to include new batteries before extrating the ROM. Thus, you'll need an HP-48sx or HP-48GX to transfer the ROM file on the PC. Good luck. fred.
From: Howard Owen on 14 Jan 2006 01:03 You actually need a 48GX with a port 1 RAM card merged with main memory to download the Hp-28S ROM. It's a little over 128K which exceeds the base RAM of any Saturn based 48. I'm not sure if a 48SX with merged 128K RAM card would work, or if that configuration is even possible.
From: Raymond Del Tondo on 14 Jan 2006 06:19
Hi, "Howard Owen" <hbo(a)egbok.com> schrieb im Newsbeitrag news:1137218580.474362.90290(a)o13g2000cwo.googlegroups.com... > You actually need a 48GX with a port 1 RAM card merged with main memory > to download the Hp-28S ROM. It's a little over 128K which exceeds the > base RAM of any Saturn based 48. > > I'm not sure if a 48SX with merged 128K RAM card would work, or if that > configuration is even possible. > On an HP-48SX, you can merge *both* port 1 and port 2, giving you a total merged RAM of more than 256K . Of course merging only works if RAM cards are installed, and amount of merged RAM depends on the capacity of the cards;-) Raymond |