Susoft 5a clone?

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l_oliveira
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Re: Susoft 5a clone?

Post by l_oliveira » Sun Sep 20, 2015 11:02 pm

zxbdragon wrote:In China:
20150921133506.jpg
Yes, because the Famicom in Japan also called the cartridges as "Cassettes". By the way, Master System, Mega Drive, MSX and Famicom cartridges have the exact size as a Compact Cassette case. ;)

Joe
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Re: Susoft 5a clone?

Post by Joe » Mon Sep 21, 2015 3:14 am

zxbdragon wrote:untitled.av.
Which mapper is this?

zxbdragon
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Re: Susoft 5a clone?

Post by zxbdragon » Mon Sep 21, 2015 3:27 am

Joe wrote:
zxbdragon wrote:untitled.av.
Which mapper is this?
not have ines mapper number.
this game using unif
UNL-TH2131-1

Vrc2/4 + IRQ

Joe
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Re: Susoft 5a clone?

Post by Joe » Mon Sep 21, 2015 3:36 am

Which emulators can run UNL-TH2131-1?

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Fisher
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Re: Susoft 5a clone?

Post by Fisher » Mon Sep 21, 2015 5:09 am

Joe wrote:Which emulators can run UNL-TH2131-1?
Nice!! TH2131-1 is written on the PCB!!

zxbdragon
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Re: Susoft 5a clone?

Post by zxbdragon » Mon Sep 21, 2015 6:10 am

Fisher wrote:
Joe wrote:Which emulators can run UNL-TH2131-1?
Nice!! TH2131-1 is written on the PCB!!
CG Real machine like?
Batman (J) [p1]_002.png
Batman (J) [p1]_002.png (4.26 KiB) Viewed 12572 times

zxbdragon
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Re: Susoft 5a clone?

Post by zxbdragon » Mon Sep 21, 2015 6:12 am

Fisher wrote:
Joe wrote:Which emulators can run UNL-TH2131-1?
Nice!! TH2131-1 is written on the PCB!!
Not yet,MAPPER information confirmation......
future:
virtuanes ex
virtuanes plus
fceux
nestopia plus!

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Fisher
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Re: Susoft 5a clone?

Post by Fisher » Mon Sep 21, 2015 6:17 am

zxbdragon wrote:CG Real machine like?
It gets a little bugged on the top of the text, but not this much.
I should have made a video of the real thing before disassemble...
Maybe I should reassemble and make a video before the flash rom transplant.

Joe
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Re: Susoft 5a clone?

Post by Joe » Mon Sep 21, 2015 8:07 am

zxbdragon wrote:Not yet,MAPPER information confirmation......
What questions do you have? I think I can answer.

Registers: $F000, $F001, $F003 (mask: $F003)

$F000: Disables IRQ, halts counters, clears low counter.
$F001: Enables IRQ, starts counters. If the high counter contains 0, an IRQ will trigger immediately.
$F003: Loads high counter with a new value.

Code: Select all

7  bit  0
---------
CCCC ....
||||
++++------ New value of high counter
The IRQ is generated by two counters, a low counter and a high counter. The low counter is 12 bits (counts from 0 to 4095) and counts M2 cycles. When the low counter is between 0 and 2047 and the high counter is 0, the IRQ line is pulled low. When the low counter reaches 2048, the high counter will count down.

lidnariq
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Re: Susoft 5a clone?

Post by lidnariq » Mon Sep 21, 2015 1:19 pm

That means that the interrupts generated by this will fire 2048 to 4095 cycles earlier than the corresponding FME-7 IRQ would have?

Joe
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Re: Susoft 5a clone?

Post by Joe » Mon Sep 21, 2015 2:46 pm

If I'm understanding everything correctly, using this IRQ the easy way (setting the counter while it's disabled and then enabling it) will trigger the IRQ between 1 and 4096 cycles sooner than a FME-7 would. It will act like a FME-7 that only lets you set the highest four bits, and triggers when it reaches 0 instead of when it wraps around.

The IRQ won't trigger immediately when the high counter reaches 0; the IRQ line is only pulled low when the high counter is 0 and the low counter has a value from 0 to 2047.

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Fisher
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Re: Susoft 5a clone?

Post by Fisher » Fri Sep 25, 2015 8:47 am

Hey zxbdragon, should I ask where did you get this ROM?
I would like to get it too and take a look, to make sure my dumping process is error free.
If you're interested, I can try to reassemble the cartridge and make some videos, maybe this can help document a little more this mapper.

By the way, I think I found a small bug on Nes Cart db search function: If I search chip type VRC2, I get only 2 results, but I know there are more than these already on the site's db. Wai wai world and Goemon 2 are some examples. Should they appear on the search for VRC2?

Thanks again for everybody!!

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l_oliveira
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Re: Susoft 5a clone?

Post by l_oliveira » Fri Sep 25, 2015 9:33 am

Fisher wrote:Hey zxbdragon, should I ask where did you get this ROM?
I would like to get it too and take a look, to make sure my dumping process is error free.
If you're interested, I can try to reassemble the cartridge and make some videos, maybe this can help document a little more this mapper.

By the way, I think I found a small bug on Nes Cart db search function: If I search chip type VRC2, I get only 2 results, but I know there are more than these already on the site's db. Wai wai world and Goemon 2 are some examples. Should they appear on the search for VRC2?

Thanks again for everybody!!
try "KONAMI-VRC-2" at "PCB, Class, Mapper" instead.

zxbdragon
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Re: Susoft 5a clone?

Post by zxbdragon » Fri Sep 25, 2015 8:56 pm

virtuanes by temryu.rar
(476.7 KiB) Downloaded 632 times

Joe
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Re: Susoft 5a clone?

Post by Joe » Sat Sep 26, 2015 2:55 am

zxbdragon wrote:virtuanes by temryu.rar
Can I see the source code?
Fisher wrote:Hey zxbdragon, should I ask where did you get this ROM?
I would like to get it too and take a look, to make sure my dumping process is error free.
Batman (j) [p1].unf wrote:Dump by Fisher,Emu by temryu
...This is the ROM you dumped. (At least, the PRG is. I think you haven't gotten a good dump of the CHR yet.)

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