(WIP) New NES dumps by CaH4e3 - 模擬器

2014.01.12

One of my last totally forgotten dumps, even if you have seen this
before more than one time, - The Educational Computer PEC-586 Pyramid
by Dongda Company. Mapper itself was not so hard to emulate, the most
crazy thing about this cartridge is that it uses its own video mode,
1-bpp plain bitmap mode. There were some others are popping out in
China, similar to this one, so with the help of our Chinese friends,
we emulate finally it's video mode. The main goal of this mode is that
you can write 1-bit tiles into tilemap area, but no need to write NT
anymore. So 8K or CHR-RAM is enough to cover the whole screen at once
with this bitmap.

The last barrier before release was its keyboard. It's visually
identical to Subor, but operation is different. So I was need to write
another one keyboard support to FCEUmm and FCEUX. So I did it finally
and it mostly works, besides still need keys layout corrections.
Most interesting, that this system has LPT and Audio-jack connectors
on the cartridge itself. Don't know, why it's done, since the cart is
useless without the console and vice versa.

There are some more systems on the same hardware exists, mentioned above
Chinese version with expanded PRG ROM, and one more interesting
Educational Computer called "Sonic REC-9388". The last one has its own
software divided into carts-modules and which can be inserted into one
of three internal mini-cartridge slots. Both Chinese ones and Sonic use
it's own keyboard hardware so can't be emulated with the same PEC-586
keyboard.

***

A couple of years ago I released bad, but mostly fixed and restored ROM
of the Russian version of the game "NARC". Now since I have a new working
copy I did redump and you can play it without glitches now. In addition,
another Russian translation from the same 1995-1996 years, Russian
version of Rush'n Attack.
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截圖、下載、來源： http://cah4e3.shedevr.org.ru/dumping_2014.php

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