PPU Book

[org]

I want to present you a book about PPU:



The book is compiled by the author team: andkorzh, HardWareMan and org.

You can download the digital version (pdf) here:

https://github.com/emu-russia/breaks/re ... eplinglish

https://github.com/emu-russia/breaks/re ... vA-russian

I am trying to produce a printed version, but due to lack of experience so far I made only a trial print run of 5 pieces in Russian:



Enjoy reading!

[Quietust]

A very interesting read, I must say - even though I traced out the whole chip in order to simulate it, I never really understood how all of the different parts of it worked.

I also saw references to (and pictures of) the PAL PPU, something I've been wanting to look at for a long time. Are any layer images available for it online, or were they too poor-quality for proper analysis (which wouldn't surprise me, based on the picture of the VRAM I/O logic)?

I did notice that page 27 of the English version had a section header in Russian ("Управляющие регистры", just above the image of the $2000/$2001 registers).

[org]

Quietust hi, good to see you

We opened up both PAL chips a few months ago. All pics of APU (2A07) and PPU (2C07) can be found here:

https://drive.google.com/drive/folders/ ... sp=sharing

https://drive.google.com/drive/folders/ ... sp=sharing

For the APU only the interesting parts were photographed, because otherwise it repeats the NTSC version. For the PPU all the metallization photos were taken, and for the silicon only the interesting places were taken again.

The restored PPU transistor circuits can be found in the releases:

https://github.com/emu-russia/breaks/releases

(But there is still a middle part left to do, where the sprite logic is)

Thanks for the correction, we will take it into account in the next revision of the book (the next revision is planned sometime in early 2022).

[org]

EDIT:

And yes, the PPU got a little "dirty" at the bottom because of the burn, but overall it didn't stop you from understanding all the differences. The whole bottom part of the PAL PPU is exactly the same as the NTSC version.