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I guess that a and b have some special values. It might just print "ERROR" without any other text because of the look up table where the error names are located overflowing.Įdited by SopaXorzTaker, 21 August 2016 - 07:36 PM. Also if you do that power in Table mode, it will behave weird and get partially stuck at the Step phase

Also when you have these values into comp mode, if you do the A value to the power of the B value, the answer is ERROR (it just says ERROR in the answer area rather than a full screen error) which is strange. If you press equals on A *or* B (not together) by themselves, it doesn't give an answer its blank (not even 0) but you can add it to the A alpha memory (Shift RCL and then A) (and do the same for the little B in the B memory) and then you can go into Comp mode and access this glitch values on any other mode, I havn't been able to get different results but its corrupting something because if I press ON or turn the calculator off and back on, all the settings and memory is reset (the calculator will initialize the memory and settings if it detects abnormalities on powering on), but i'm sure theres something we can do about it. The emulator can keep value of variables even if I exit that.Īnyone know details of es-plus models? (ram size, rom size, etc)Ĭould you upload one of those temporary files for me to look into?Īccording to the datasheet, the chip in fx-991ES (not PLUS) has 96KiB of ROM and 3584 (3.5KiB) bytes of RAM.Now the little A and B from the Reg menu have a weird behavoir.

In my computer the save file (external memory?) is stored in I found by pause hotkey) but that can't help.Ĥ) From 2 or 3 above (or by another means), how to enter DIAGNOSTIC mode.

I found the part that determine the highlight on screen (determine by two 4-bytes values that is FFFFFFFF when no highlight. (For example I can't get to SETUP from MODE)ģ) What determine what button is being pressed. I managed to find scroll page (page 1 / page 2) but unable to switch between different pages. 2) What determine what page​ is currently showing on the screen.