Recent posts

#1

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Amstrad CPC hardware / Re: External Gotek disc missin...

Last post by robertix - Today at 08:05

  I changed the cable and it's working now  thanks a lot for your fast help 🙇

#2

Amstrad CPC hardware / Re: Zilog Z84C0020PEG in my CP...

Last post by McArti0 - Today at 06:39

I will be making a hardware patch in an inelegant version, i.e. shorting D0-7 from high to low. If anyone knows whether the CMOS output can withstand such frequent treatment, please write something.

#3

Technical support - Hardware related / Re: cable DDI-1 for CPC 6128

Last post by Rabs - Today at 06:19

Isn't the DDI-1 wired to supply 5v on the floppy cable?

Could that damage the CPC?

I read this also somewhere, not sure if it is correct but as I am only using with a CPC 6128, I disconnected the internal 5V supply just in case I initially got the cable upside down. Guess I can reconnect now it is working.

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#4

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Other retro / Re: The architecture of every ...

Last post by Anthony Flack - Today at 00:13

I read through the SMS one as well; I quite fancy doing a SMS game sometime. Looks like it would be a piece of cake, although all access to graphics RAM having to go through the VDP is a bit of a shame. No wonder all those games that tried to do software sprites on the tile layer (like you would expect from any good British coder) had a hard time. 

Looks like a nice site. It's all laid out and written very clearly.

#5

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Games / Re: WIP Transversion

Last post by Typhon - Today at 00:04

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#6

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Games / Re: WIP Transversion

Last post by Typhon - Today at 00:01

Next steps:

• add enemy bullets/collision detection
• game over splash
• music/sfx
• extra graphical touches and effects

#7

Programming / Re: FutureOS corner

Last post by GUNHED - Yesterday at 22:54

There is now a Discord Group for FutureOS. 

Here is the invitation link:
https://discord.gg/2neHRwUr

#8

Programming / Re: bits 5 and 3 of F register...

Last post by GUNHED - Yesterday at 22:48

After the instruction BIT n,(HL) execution, bits 3 and 5 of the flag register become containing values that are not documented in the official documentation at all.
Actually these bits are copied from the bits 11 and 13 of the internal register pair of Z80 CPU, which is used for 16-bit operations, and in most cases to handle addresses.

#9

Other retro / Re: The architecture of every ...

Last post by GUNHED - Yesterday at 22:25

Sorry, after a quick look it seems like the CBM Colecovision is missing. That shall not be.

#10

Applications (CPC and CPC-related) / Re: HDCPM - boot and run CP/M ...

Last post by GUNHED - Yesterday at 22:18

Very nice!