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SimonLothar
Sun Apr 16, 2017 5:09 am
 
Forum: Casio fx-9860 SDK
Topic: Hitachi compiler options
Replies: 6
Views: 1886

Re: Hitachi compiler options

cakeisalie5 wrote:By the way (sorry if that's not the correct topic to deal with this), does Hitachi's compiler define any compiler-specific macro, something like __HITACHI__?
Yes. __HITACHI__ (1) and __HITACHI_VERSION__ (0x0600).
SimonLothar
Fri Apr 14, 2017 8:53 pm
 
Forum: News & Announcements
Topic: Prizm fx-CG50 announced for spring 2017
Replies: 58
Views: 2399

Re: Prizm fx-CG50 announced for spring 2017

The OS checksum:
At 0xA0B5FFF8
0xA0020000..0xA0B1FFFF + 0xA0B5FEF0..0xA0B5FFF7
(As with fx-CG20 OS 2.02)
SimonLothar
Fri Apr 14, 2017 7:30 am
 
Forum: Calculator Hacking/Modding Discussions
Topic: Syscalls (serial communication, ...)
Replies: 11
Views: 608

Re: Syscalls (serial communication, ...)

Found this today online, and as you told me OHP was only possible on USB, I'm quite surprised... is there any way to do OHP on serial? They swapped the physical port order on the PCB with the fx-9860GII types. The calculator pictured here is a fx-9860G connected via USB to a OH 9860. But indeed I s...
SimonLothar
Sat Apr 08, 2017 5:47 pm
 
Forum: News & Announcements
Topic: Prizm fx-CG50 announced for spring 2017
Replies: 58
Views: 2399

Re: Prizm fx-CG50 announced for spring 2017

The fx-CG50 OS is very similar to the fx-CG20 OSes. I am a bit disappointed. Looks as if there are no secrets to unravel. Apart from the RAM-address there seem to be no grave differences. INSIGHT, NOTEVIEW, FARGOAL and even a relatively complicated UBC-tool work well (OK, I wrongly used 0x88000000 a...
SimonLothar
Tue Apr 04, 2017 6:20 pm
 
Forum: News & Announcements
Topic: Prizm fx-CG50 announced for spring 2017
Replies: 58
Views: 2399

Re: Prizm fx-CG50 announced for spring 2017

Do you know if anyone knows where the table of the names and icons of the built-in add ins is stored in the OS? And how to get that offset? I want to make a program which can edit the icons of the 2.0 firmware to match the new white ones. Basically I'm trying to patch OS 2.02 to be a fake OS 3.0 wi...
SimonLothar
Sun Apr 02, 2017 4:01 pm
 
Forum: General
Topic: 3 pin data transmission between two fx-CP400
Replies: 3
Views: 135

Re: 3 pin data transmission between two fx-CP400

You have to activate "receive" on the receiving calculator before starting "transmit" on the other calculator.
I just checked it between my CP400 and CP330plus.
SimonLothar
Sat Apr 01, 2017 9:04 am
 
Forum: News & Announcements
Topic: Prizm fx-CG50 announced for spring 2017
Replies: 58
Views: 2399

Re: Prizm fx-CG50 announced for spring 2017

AmazoNKA wrote:Sorry for being ignorant with this type of things...
Would add-in with vram address being hardcoded as 0xA8000000 still work on fx-cg50 please?
No. Syscall 1e6 returns 0xAC000000.
SimonLothar
Sun Mar 26, 2017 12:21 pm
 
Forum: Calculator Hacking/Modding Discussions
Topic: Syscalls (serial communication, ...)
Replies: 11
Views: 608

Re: Syscalls (serial communication, ...)

Also, for what I've seen, Projector and ScreenReceiver are the same things, and ScreenCapture is basically just about sending one OHP packet then going offline. Is there any difference between Projector and ScreenReceiver, maybe in the syscalls it uses to read screens? Does USB_CaptureDisplay also ...
SimonLothar
Sun Mar 26, 2017 6:42 am
 
Forum: Calculator Hacking/Modding Discussions
Topic: Syscalls (serial communication, ...)
Replies: 11
Views: 608

Re: Syscalls (serial communication, ...)

...you added the checksum member, is this member never read/written by any syscall or always generated before sending or at reception, without sending to the user? (was this structure member a supposition that, in the end, was not correct?) The Comm_Prepare****Packet-syscalls set this byte to zero....
SimonLothar
Sat Mar 25, 2017 6:17 am
 
Forum: Calculator Hacking/Modding Discussions
Topic: Syscalls (serial communication, ...)
Replies: 11
Views: 608

Re: Syscalls (serial communication, ...)

It looks as if AutoImageTransfer_OHP basically sends the sequence 0B 54 59 50 30 31 followed by the screen image (0x400 bytes, freshly retrieved using syscall 0x024). A checksum is calculated over these 0x406 bytes by subtracting the bytes (SUB Rm,Rn) starting with checksum=0 (Rn=0).  I have to cor...
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