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HP 49G Advantages over 49g+ & 50g
01-24-2018, 12:20 PM (This post was last modified: 01-25-2018 09:15 AM by jebem.)
Post: #17
RE: HP 49G Advantages over 49g+ & 50g
(01-23-2018 07:38 PM)Claudio L. Wrote:  
(01-20-2018 12:38 PM)Gerald H Wrote:  Here some plus points:

1. Genuine Saturn chip, no emulation layers;

I'm confused as to what's the advantage. Even with the emulation layer you get a 2x speedup factor, and the virtual Saturn gets many new opcodes that further accelerate common functions bypassing the emulation. In the end you get a faster Saturn with extra features, so how is not the virtual Saturn better than the real one?

IMHO, the native Saturn benefit is related to the amount of SRAM memory available on the 49G when compared to the 49G+/50G models running on Saturn emulators, as shown on the File Manager for official firmware versions and after a full memory reset:

1) Model 50G:
VERSION: HP50-C Revision #2.15 HP 2009
Port 0: IRAM 240KB
Port 1: ERAM 127KB
Port 2: FLASH 655KB
Home 240KB (that's the shared Port 0 from above)

2) Model 49G (ID93406767, Indonesia, 1999, week 34)
VERSION: HP49-C Revision #1.18 HP 2000
Port 0: IRAM 241KB
Port 1: ERAM 255KB
Port 2: FLASH 1079KB
Home 241KB (that's the shared Port 0 from above)

So it is a trade off. The 50G loses user memory but gives more features compared to the 49G.
Hence the less amount of both ERAM and Flash ROM available to the user on the 50G.

Jose Mesquita member

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RE: HP 49G Advantages over 49g+ & 50g - jebem - 01-24-2018 12:20 PM

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