|DM-15CC Extended Memory|
Message #1 Posted by Mark Hardman on 15 Feb 2012, 2:58 p.m.
The "Firmware" tab of the DM-15CC Website provides downloads for the following HP 15C versions:
DM-15CC firmware 'vanilla'
DM-15CC firmware 'mem80' with extended memory
DM-15CC firmware 'mem1b' with even more memory *
With the caveat on the last being:
" * with the mem1b version you must not make more than 999 pgm steps... the unpredictable may happen."
I would assume that the 'mem80' version has 128 (0x80) pool registers. But it is not clear about how much extended memory the 'mem1b' patch version provides.
In an old thread, Eric and HrastProgrammer made it clear that 128 was the upper limit of the number of pool registers available without the need for extensive patching to the ROM. But, given the caveat for the 'mem1b' version, we can assume that it supports at least 143 pool registers.
Has anyone successfully applied any of the alternate ROMs? I would be curious to know how far Michael was able to extend the DM-15CC's memory.
Edited: 15 Feb 2012, 3:02 p.m.