A48 === NO ! Not stdby current , operating current ! And op' current per mhz . Toshiba has a __55V_____ SRAM that is the lowest i've seen but DigiKey no longer has it . 128KB and 10.8 milwatt/mhz . Many of the so called low power are 50 mw/mhz ! This is outrageous high ==== The lower the standby current, the longer your HP48's memory will be preserved whilst it is in the off state. The lower the operating current, the longer the batteries will last while it is on. Since most people usually spend more time with their calculator off than on, i'd vote for lower standby current. Uh-oh! If i remember right (which i try hard to forget all of them), he Right. I have also used two 128K*8 chips in SOP32 packaging to upgrade my HP48G to a total of 256KB of RAM. I used two M5M51008 AFP-70L from Mitsubishi, which is a 70 ns, low power version. In the data I have, they are stated to draw 15mA in active mode, and 0.1 mA in standby. Generally I would say that my batteries last just as long as with the original 32KB RAM chip. By the way, the original RAM chip in my HP48G was also a Mitsubishi: ==== Well, may be I misunderstood the original Mr. Parisse's post. Actually the orginal line was: DEFINE lnabsflag BINT121 ( set if xLN returns LN[ABS[]] ) So I think your interpretation is correct. Anyway I wonder when and why falgs as -121 are cleared. I mean, when the CAS ==== about flag -121: Thanx! Also the flag -104 should not be used? And exactly how does it operate? And what about flag -122? When is it cleared? (if I understood correctly a 0/0 set this flag). Last question: flag -101 and -126 how affect computations? Kickaha back yet. It was suppost to be a 1 day RMA deal, it's 10 days now.... Sooo I just figured I would call and see what's up.... BUT the frikkin website is down. http://www.hp.com/cpso-support/guide/psd/expectations.html So if anyone has the phone numbers for HP Canada, it would be greatly appreciated. Andrew ==== Sorry for being off-topic, but this was closest I could find. I'm looking for newsgroup discussing the hp 42S RPN Scientific calculator. I found www.hpmuseum.org downloadable manual on CD. Maybe it will come to that. I have OEM hp handbook for 41C/CV and I will trade straight across for OEM hp manual on 42S. ==== And now that I have your attention (!), does anyone know a good program to calculate limits (with a nice english manual)?? ==== 49, limits are built it). My advice is this: if you have enough memory, load Erable (which can be found on hpcalc.org) on your calculator. It has decent documentation and a very good limit instruction. However, it is quite large because it does so much more than limits, but if you are planning on doing more calculus-type problems (and beyond) this library is a must. If you need something ==== Thanx very much, I've been to hpcalc.org, but couldn't find anything at the time... However, I'll give Erable a try, it doesn't matter it's big, I have 512 KB extra ram! :-) Thanx again, Artur ==== Over the years, when the comp.sys.hp48 s/n ratio fell below the toleration threshold, the proposal to become a moderated newsgroup arose... and was always roundly defeated. Here's a new proposal, with the aim of nuking the flame wars (as it were). Has there ever been a discussion about the possibility of becoming a retro-moderated newsgroup? That is, all postings appear immediately, but a retro-moderator (elected by the readership from those who volunteer and are able) will have the power to cancel any posting or thread, thereby keeping the newsgroup tidy without being a bottleneck as regular moderators are. The only drawback of having a retro-moderator is that the boogyman of censorship arises, and what's worse, absolute power would be in one person's hands, which of course is scary since power corrupts and, well, you know the rest. It would also become a pain in the volunteer's derri217re, since if he took a few minutes off to go to the bathroom, everybody would bombard him with complaints that a spam message made it through. ;-) Whatcha think? Should we leave well enough alone, and just tolerate the noise, or should we hire a housemaid to tidy up from time to time? -Joe- -- Whosoever would be a man, must be a nonconformist....A foolish consistency is the hobgoblin of little minds....To be great is to I'm against of any kind of *legal* censorship. Everybody can express themselves, no matter how crap it is. It's up to us not to read them. All readers give this ability. Ignoring messages of only a few person is far enough. If you put this TVD and Matt Bryant in there, the problem is 95% solved. I say that because in the past week I haven't been troubled by any messages until Eric Rechlin told me how shocked is had been with some messages and went to google to read them. I couldn't believe what I've read, especially some messages addressed to you Joe who has been helping people here for more than a decade. After a while these people will get bored and will simply stop posting and leave. I think if the problem was a lot worse than it is I might disagree with you. But it's not a big problem on this group. We don't need a solution. Time will take care of it. We've had flames before and people who stir things up a little. The flames die down and the stirrers usually do too. All in all this is one of the better behaved newsgroups on the web. If it ain't fixed, don't break it. Barry (as it becoming a from express them. All is far solved. I messages messages and ==== I which way do you disagree with what I've just written ? Hopefully, this won't happen. It is just too easy for me to ignore the ignorant myself; I do not require another person to do the ignoring for me. A moderator would either be bound by rules that could not possibly cover all topics of interest to comp.sys.hp48 readers, or elsebe bound by his or her own whims and interests. There are a great many OT subjects that come up from time to find that I have greatly enjoyed reading. The ones that don't interest me, I skip. (Occasionally causing severe strain of my index finger while I click NEXT) ==== Dear all. I have the extreme pleasure to announce that the version 1.19-6 of the HP49 ROM is finally available. You can find everything there (ROM, Emulator ROM, instructions, information etc...): http://www.epita.fr/~avenar_j/hp/49.html It should be soon on the HP web site too. WARNING, ATTENTION, CAREFUL ! Please make sure that you are reading completely the upgrade procedure ==== WOOHOOOO! I know what I'll be doing this evening, and it ain't the exam prep that I should be! ==== For those who experienced some difficulties you can try here: ==== GREAAATTT but the extable has not been updated with the new entry points (since ROM [snip] And we have the extreme pleasure to thank you and the rest of the HP ==== HP49 I Agree!!! Thanx to you all, developers, beta-testers and to each people who contributed to the develoment of this wonderful calc! About that... :o)... there are new functions in the ROM? And if so, are they documented? :o) Thanx, thanx, thanx and thanx again Kickaha [...] Besides the bugfixes, 1.19-6 seems to have a *much* faster interface. Also the changes in the editor interface (COPY, CUT, etc) and the CAS and pretty print stuff simpy ROX =) Great improvements! I had some crashes, but these went away quickly as I updated the unsupported pointers in my own key assignments. However Jazz doesn't seem to work at all; also decompressing Jazz and doing 0 STO gave a *really* bad crash. Anyway, there are no cons at all - I mean who said we should use HP49 A big 'thanks' to JYA et al for all the amazing work....would anyone ==== entries on to use suggestions or OK, here's another posting tread. First of all, the internal debugging/disassembling features of Emu48 are optimized for ASM disassembly, so there's only rudimental support for RPL programs. For most of my RPL disassembly I use the DOB command of the Jazz package. But here you're limited to the HP48/49 calculator series, and 2nd, you can't access hidden memory parts. So Joe's suggestion to use voyager is a good choice for debugging the HP48SX ROM. But now to the abilities of Emu48. First you should use v1.27 (or later), because of a new feature. The one essential part you found so far, the internal disassembler with the ability of choosing the memory module. Please excuse, this part isn't really supported any more, so the names for the memory modules belonging to the HP48 series. But ROM is always ROM. :) But now to the other tool, the search engine. Please call the debugger and use the right mouse button over the memory view. You get a context dialog with Find and Mapping. Choose the Mapping item. Here you can select the memory module that's is showed in the memory view. Please read the Jazz 2nd, HP48SX Please and the Voyager is definitely a great piece of software, still called by many of my batch files. Anyway, I also recommend J.F. Garnier's Mon48: http://www.geocities.com/ResearchTriangle/2000/mon48.zip A version for the HP38G can be obtained from the source code without great trouble.