Jazz 50G and SysRPL Debugger updated
in [HP48]
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From: Han on 17 Jun 2010 15:25 I have finished porting Jazz over to the HP49G+ and HP50G (ROM 2.15). The latest version (version 1.1) includes support for FPTR2 and ZINT tokens, as well as all new opcodes. The SysRPL debugger (SDB) is also now available. One caveat is that Jazz has its own entries table (which can now be installed in any port without speed limitations nor RAM requirements to copy the tables from covered ports) whereas SDB uses extable. This choice was due to the fact that there are users who prefer the internal MASD compiler (which uses extable) and only want to use SDB. The files have been uploaded to hpcalc.org, but until the site is refreshed, you can download the new versions via: Jazz: http://www.math.uiuc.edu/~handuong/hp48/jazz50g.zip SDB: http://www.math.uiuc.edu/~handuong/hp48/sdb.zip Cheers! Han
From: Han on 26 Jun 2010 23:39 Here's a quick update to Jazz 50G. Minor fixes to label generation during disassembly. Major fixes in SDB, including updates to CK&DISPATCH1 emulation to handle updated sym/arry classes, conversion of integers to reals, and a patch to work around the 2 bugs in ROM 2.15. Until hpcalc.org does another refresh of files, you can get the updates at: Jazz 50G: http://www.math.uiuc.edu/~handuong/hp48/jazzv111.zip Jazz 50G Source: http://www.math.uiuc.edu/~handuong/hp48/jazzv111src.zip SDB (standalone library): http://www.math.uiuc.edu/~handuong/hp48/sdbv11.zip This update of the standalone version of SDB also includes the source code.
From: John H Meyers on 28 Jun 2010 17:51 On 6/26/2010 10:39 PM, Han wrote: > Here's a quick update to Jazz 50G. Minor fixes to label generation > during disassembly. Major fixes in SDB, including updates to > CK&DISPATCH1 emulation to handle updated sym/arry classes, conversion > of integers to reals, and a patch to work around the 2 bugs in ROM > 2.15 About this last patch -- is it a patch to the actual ROM, or a patch for which you have to run all programs under Jazz? (the latter does not seem very practical). If there is a bug, what if it's in _all_ ROM versions? If Jazz can correct a ROM bug, can it correct _all_ of them? Say, why can't Emu48 correct ROM bugs, too? That way, everyone using it, instead of a real calculator, can have a perfect HP49/50 series calculator ;-) [r->] [OFF]
From: Han on 28 Jun 2010 18:12 On Jun 28, 4:51 pm, John H Meyers <jhmey...(a)nomail.invalid> wrote: > On 6/26/2010 10:39 PM, Han wrote: > > > Here's a quick update to Jazz 50G. Minor fixes to label generation > > during disassembly. Major fixes in SDB, including updates to > > CK&DISPATCH1 emulation to handle updated sym/arry classes, conversion > > of integers to reals, and a patch to work around the 2 bugs in ROM > > 2.15 > > About this last patch -- is it a patch to the actual ROM, > or a patch for which you have to run all programs under Jazz? > (the latter does not seem very practical). > > If there is a bug, what if it's in _all_ ROM versions? > > If Jazz can correct a ROM bug, can it correct _all_ of them? > > Say, why can't Emu48 correct ROM bugs, too? > > That way, everyone using it, instead of a real calculator, > can have a perfect HP49/50 series calculator ;-) > > [r->] [OFF] Sorry if there was any confusion. It is a patch of SDB. SDB was designed to emulate CK&DISPATCH1 exactly as it is in ROM. I had planned for the updated SDB to continue this -- emulating even the bugs -- but then decided against this. I called it a patch because by excluding the 2 bugs, SDB was no longer emulating the entry as it is in ROM (i.e. bugs and all). It has nothing to do with patching the actual ROM.
From: Andreas Möller on 29 Jun 2010 05:25
Hello John, as you might know, patching the ROM from the outside is quite difficult. The O.S. provides some "hooks" for this (e.g. the ROMPART) but not for all (e.g. PTRs, FLASHPTRs). One way to be able to patch the ROM from the outside is to install a new SOL (SystemOuterLoop) and an additional RAM area where the information for the patches is stored/handled. To my knowledge I am the only one who has done this with the MLPs (Watch the video: http://www.youtube.com/watch?v=Pj72miclisM). Another way would be to patch the binary of the ROM *before* downloading it into the calculator by exchanging the desired parts and recalculating the needed checksums (of course while keeping supported entries stable). IIRC this was an approach by the never released and now abandoned HPGCC 3.0. And a third way would be to program your own ROM :-) > Say, why can't Emu48 correct ROM bugs, too? > That way, everyone using it, instead of a real > calculator, can have a perfect HP49/50 series > calculator ;-) But then, why should one buy a 50G with *bugs* from HP when there would be a *bug-free* version available for free ? What would be the reaction of HP´s legal department and the bean counters ? And what would that mean for the calculator division ? Regards, Andreas www.software49g.gmxhome.de |