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SimonLothar
Sun Feb 19, 2017 9:50 am
 
Forum: Calculator Hacking/Modding Discussions
Topic: Best way to detect SH3 or SH4 cpu?
Replies: 12
Views: 28730

Re: Best way to detect SH3 or SH4 cpu?

Hi, I was discussing ... the last four digits of the version, and ... they were automatically made up from detections on the hardware (as the same OS on different hardware gives different digits). So I was wondering if you knew how the OS knew all that info, so if there is a way to know: - if the m...
SimonLothar
Sat Feb 18, 2017 4:44 pm
 
Forum: Calculator Hacking/Modding Discussions
Topic: Best way to detect SH3 or SH4 cpu?
Replies: 12
Views: 28730

Re: Best way to detect SH3 or SH4 cpu?

cakeisalie5 wrote:I couldn't find a precise documentation of the PVR/PRR registers, where did you find it?
PVR and PRR are documented in the SH7780(4A)-manual rev. 1.00 p. 1276 and SH7760(4)-manual rev. 2.00 p. 1329
SimonLothar
Thu Feb 16, 2017 7:15 am
 
Forum: Calculator Hacking/Modding Discussions
Topic: Serial communications
Replies: 19
Views: 37117

Re: Serial communications

Also, Critor lent me his SB-88A cable (I was using a Util-Pocket cable until now), and it looks like the bytes that are not 0x10 are a little crappy (the 0x05,0x30,0x30,0x30,0x37 packet, with deformations that look random). Have you tried such a cable? Have you found any solution to this since fxRe...
SimonLothar
Thu Feb 16, 2017 6:26 am
 
Forum: Calculator Hacking/Modding Discussions
Topic: Serial communications
Replies: 19
Views: 37117

Re: Serial communications

ocumentation says the 0x10 character is "Data Link Escape", and I found that there was no strict norm about how this character could be used. Also, here, it doesn't look like normal data escaping, so I don't really know how this thing work... I first noticed the 0x10 sequences with OsUpat...
SimonLothar
Thu Feb 16, 2017 5:56 am
 
Forum: Calculator Hacking/Modding Discussions
Topic: Serial communications
Replies: 19
Views: 37117

Re: Serial communications

cakeisalie5 wrote:So you're handling it in two different ways, as I can't do for now in libp7...
The USB-variant with an intermediate buffer should work for the serial interface as well. So it should be possible to work uniformly.
SimonLothar
Sat Feb 11, 2017 5:46 pm
 
Forum: Calculator Hacking/Modding Discussions
Topic: Serial communications
Replies: 19
Views: 37117

Re: Serial communications

I dug a bit deeper and had a look at nearly ten years old code. During the week I have been a bit short of time. Indeed there is a difference between serial and USB. In case of the serial interface,l it is possible to read one byte at a time. ////////// serial ////////// FUNCTION tSio.GetOne( p ...
SimonLothar
Sat Feb 11, 2017 2:08 am
 
Forum: Calculator Hacking/Modding Discussions
Topic: Serial communications
Replies: 19
Views: 37117

Re: Serial communications

I am not sure, if I understood your question right. If you use a filename like "COMx", you use the serial interface, t. i. CESG502 is not involved. If you use a filename, which you found by searching device "VID_07CF&PID_6101", you use USB. And then CESG502 is involved. Apart...
SimonLothar
Thu Feb 09, 2017 5:33 am
 
Forum: Calculator Hacking/Modding Discussions
Topic: Serial communications
Replies: 19
Views: 37117

Re: Serial communications

After the calculator receives the "set link settings" command it needs some time to open the serial interface again.
I use a delay of 100 ms, after I received the "set link settings" command's ACK-response.
SimonLothar
Sun Feb 05, 2017 5:46 pm
 
Forum: General
Topic: No FPU in fx-9860G II?
Replies: 6
Views: 6881

Re: No FPU in fx-9860G II?

Here the list of SH7337/SH7355 registers. With the interrupt priority- and port control-registers I enhanced the bit-incompatibilities compared to the SH7705 MPU. FFFFFFD0 dd dd TRA (Trap event) FFFFFFD4 dd dd EXPEVT (Exception event) INT (Interrupt) FFFFFEE2 dw dw IPRA (...
SimonLothar
Mon Jan 30, 2017 4:29 pm
 
Forum: Calculator Hacking/Modding Discussions
Topic: FONTCHARACTER Reference - compatibility, sets
Replies: 25
Views: 46525

Re: FONTCHARACTER Reference - compatibility, sets

cakeisalie5 wrote:the disassembler just puts it in another order than the official one
Funny thing, that. A disassembler which freely swaps the order of operands.
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