new Casio’s fx-CG50

[rprosperi]

(05-09-2018 06:04 PM)jebem Wrote:  

(01-31-2017 03:19 PM)jebem Wrote:  I believe those are the correct values.

This question from Bob is a very good one, and my reply contains misleading information.
My answer was given based on the CASIO officially available information, but I found it suspicious as well. Then I forgot about it, until a recent CASIO announcement for the GRAPH 90+E equivalent model for French market.

Yet Casio keeps on supplying confusing information (May-2018) on the so called "fx-CG50 Hardware User's Guide":
- Programming capacity: 61,000 bytes (max.)
- Storage memory capacity: fx-CG50: 16MB (max.) fx-CG50: 4.5MB (max.)

I now realize that those values are referred to the end user available usable spaces, not to the actual RAM/ROM configured sizes.
So, the user would have around 61Kbyte of programming area, and a maximum of 16MByte of storage area on a fx-CG50.

Thanks for the usual good detective work Jose, it's good to know the published values are indeed correct, even in misleading.

It's hard to imagine they could only leave less then 1% of the DRAM space for user programs to run (seems they can be stored in the 16MB Flash area) but without knowing something about the machine, I can't say if that's a problem or not. Are programs copied from flash to ram to execute, or are they XIP and only use RAM for stacks, variable storage, etc.?