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+--- Thread: HP-48GX ROM P (/thread-15950.html)
HP-48GX ROM P - MD80_ESP - 11-24-2020 11:52 PM
Hi, I have seen a HP48GX ROM Version P with something like P-Cop...
See the attached picture, is this ROM version normal? I have never seen that before.
Thanks
RE: HP-48GX ROM P - rprosperi - 11-25-2020 01:52 AM
It would be easier to reply if the picture actually was attached...
RE: HP-48GX ROM P - acoto - 11-25-2020 03:56 AM
HP 48GXs with ROM-P are rare animals, but yes they existed.
https://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/articles.cgi?read=991
RE: HP-48GX ROM P - MD80_ESP - 11-25-2020 07:18 AM
(11-25-2020 01:52 AM)rprosperi Wrote: It would be easier to reply if the picture actually was attached...
Hi, sorry, I attached it but I do not know why it has not worked, trying again...
RE: HP-48GX ROM P - MD80_ESP - 11-25-2020 07:20 AM
(11-25-2020 03:56 AM)acoto Wrote: HP 48GXs with ROM-P are rare animals, but yes they existed.
https://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/articles.cgi?read=991
Yeah, but the thing is that it's PCop... version, not P, as I do not have it I cannot edit to read the rest of the string.
RE: HP-48GX ROM P - Giuseppe Donnini - 11-25-2020 09:09 AM
No mystery here:
The VERSION command returns the following two string objects to stack levels 2 and 1, respectively:
2: "Version HP48-X"
1: "Copyright HP 1993"
where X represents the actual ROM revision number.
Now, you only have to inadvertently hit the [+] key and both strings end up being concatenated, which looks like this:
1: "Version HP48-XCop…
(In the case of string objects, the system decompiler responsible for stack objects does not add line feeds even if you are in multi-line mode, which is the default setting (system flag -52 clear). So the result will always be one single line, if necessary truncated to 19 characters, including the opening double-quote delimiter and the closing ellipsis.)
RE: HP-48GX ROM P - MD80_ESP - 11-25-2020 04:07 PM
(11-25-2020 09:09 AM)Giuseppe Donnini Wrote: No mystery here:
The VERSION command returns the following two string objects to stack levels 2 and 1, respectively:
2: "Version HP48-X"
1: "Copyright HP 1993"
where X represents the actual ROM revision number.
Now, you only have to inadvertently hit the [+] key and both strings end up being concatenated, which looks like this:
1: "Version HP48-XCop…
(In the case of string objects, the system decompiler responsible for stack objects does not add line feeds even if you are in multi-line mode, which is the default setting (system flag -52 clear). So the result will always be one single line, if necessary truncated to 19 characters, including the opening double-quote delimiter and the closing ellipsis.)
It's not my calculator or picture, I got it from a seller (I have 48SX and 50G and want a 48GX ROM R), and I should have noticed that (banging head against table)...my stack abilities are a bit rusty :-(
Thanks.
RE: HP-48GX ROM P - carolinahomes - 06-23-2023 07:14 PM
Please add my calculator rom to the list, since this will make it the first GX on the list. The date sequence is unusual as rom version M was still being installed in 48G's at the time, according to the list.
48gx P 3342S10281 Singapore 1993 42
I can email photos or video for verification, let me know where to send it.
A couple years ago I had a guy replace the screen with one from a 38g and all is very nice on it now. On average, the clock speed is 3748864.