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General Category => Other retro => Topic started by: Ynot.zer0 on 20:19, 11 March 13

Title: Portable C64
Post by: Ynot.zer0 on 20:19, 11 March 13

kinda what I wanted to do with my CPC6128 (by still haven't gotten around to it):


wpqrek - Things that I do!: My C64 mods :) (http://wpqrek.blogspot.co.uk/2011/09/my-c64-mods.html)



Title: Re: Portable C64
Post by: Gryzor on 09:24, 13 March 13
Ooh, cool! What battery will he use though?


Also, you only have space to do this on a Plus, unless you remove the drive (and the screen will be too small...).
Title: Re: Portable C64
Post by: Bryce on 16:54, 14 March 13
I was thinking of doing something like this with a CPC+ using a HxC and this display: Sony PlayStation 1 und TFT-LCD-Screen plus 3Spiele | eBay (http://www.ebay.de/itm/Sony-PlayStation-1-und-TFT-LCD-Screen-plus-3Spiele-/271169446139?pt=DE_Konsolen&hash=item3f22f560fb)
Great little display and can be wired directly to the CPCs RGB signals with minimal extra hardware! :D

Bryce.
Title: Re: Portable C64
Post by: Gryzor on 19:52, 22 March 13
Quote from: Bryce on 16:54, 14 March 13
I was thinking of doing something like this with a CPC+ using a HxC and this display: Sony PlayStation 1 und TFT-LCD-Screen plus 3Spiele | eBay (http://www.ebay.de/itm/Sony-PlayStation-1-und-TFT-LCD-Screen-plus-3Spiele-/271169446139?pt=DE_Konsolen&hash=item3f22f560fb)
Great little display and can be wired directly to the CPCs RGB signals with minimal extra hardware! :D

Bryce.

Any thoughts about the case?
Title: Re: Portable C64
Post by: steve on 20:48, 22 March 13
The PS1 screen looks about the same size as a GX4000, so it could make a nice portable gaming console, you could mount the PCB behind the PS1 screen.
Title: Re: Portable C64
Post by: rexbeng on 22:32, 22 March 13
Isn't this one (http://benheck.com/04-05-2009/commodore-64-original-hardware-laptop) the mother of all portable C64 mods? Bryce should have a look; there's some serious hardware here!  :D


rb
Title: Re: Portable C64
Post by: Bryce on 14:20, 23 March 13
Yes, that looks seriously well made. I was looking at using a Toshiba laptop. The floppy is "CPC compatible" and there's enough space inside for a 6128 or CPC+ PCB.

Bryce.
Title: Re: Portable C64
Post by: Ynot.zer0 on 15:25, 23 March 13
Quote from: Bryce on 14:20, 23 March 13
Yes, that looks seriously well made. I was looking at using a Toshiba laptop. The floppy is "CPC compatible" and there's enough space inside for a 6128 or CPC+ PCB.

Bryce.


I've got the next week off work, so inbetween hot-rod work, I think I'm going to start measuring up old laptops and 6128 motherboards... will post updates if I make any... and obviously questions when I get stuck!
Title: Re: Portable C64
Post by: MacDeath on 11:34, 24 March 13
Reminds me of this chick who made a C64 handbag (also a NES one I guess).


Jeri Ellsworth
(http://sphotos-b.ak.fbcdn.net/hphotos-ak-snc6/223208_10150224618609282_44460_n.jpg) (http://sphotos-b.ak.fbcdn.net/hphotos-ak-snc6/223208_10150224618609282_44460_n.jpg)


BTW a few problems may arise :
=no support for CTR tricks...
=Amstrad CPC motherboard are real powersink... don't expect good autonomy because +5V at 3A is somewhat more than any modern device.


Jery did her C64 purse with the C64toTV card, which is a compact modern thing who use less power.

I know that to get rid of real old 3" floppy Disk drive may be good to use less power, still.



(http://upload.wikimedia.org/wikipedia/commons/7/78/Sx-64_build_crop.jpg) (http://upload.wikimedia.org/wikipedia/commons/7/78/Sx-64_build_crop.jpg)


(http://www.old-computers.com/museum/photos/amstrad_cpc464_homebrew_1.jpg) (http://www.old-computers.com/museum/photos/amstrad_cpc464_homebrew_1.jpg)


(http://mo5.com/commun/images/ordinateurs/amstrad//T_NC200.JPG) (http://mo5.com/commun/images/ordinateurs/amstrad//T_NC200.JPG)


(http://nationalmediamuseumblog.files.wordpress.com/2012/09/amstrad.png) (http://nationalmediamuseumblog.files.wordpress.com/2012/09/amstrad.png)
Those should have had a monitor plug to be connected on TV IMO.


(http://mo5.com/commun/images/ordinateurs/amstrad/F_amstrad_alt286.jpg) (http://mo5.com/commun/images/ordinateurs/amstrad/F_amstrad_alt286.jpg)


(http://retrothing.typepad.com/photos/uncategorized/amstrad.jpg) (http://retrothing.typepad.com/photos/uncategorized/amstrad.jpg)




I would also love to see what can be done whith that :


(http://static.guim.co.uk/sys-images/Technology/Pix/pictures/2011/4/28/1304010347657/Amstrad-emailer-002.jpg) (http://static.guim.co.uk/sys-images/Technology/Pix/pictures/2011/4/28/1304010347657/Amstrad-emailer-002.jpg)
They feature a ZX spectrum 128 emulator, from what i heard... oh shit, they should get a proper CPC/PLUS/PCW/PCW16 emulator too.


Look at this sweet speccy style keyboard...
(http://www.model-engineer.co.uk/sites/7/images/member_albums/45510/hpim1892.jpg)
Title: Re: Portable C64
Post by: MacDeath on 13:18, 24 March 13
Sorry for the double post but my past message was already heavy on pictures... needed a break.


I think a big issue with the use of small LCD/phone/mini flat display on CPC is that the CPC has a few extra resolutions that arte no more standard...
Modern developpers love to play with this...
Be it vertical or horizontal or full full screen.

compaired to a good old CRT monitor, you clearly can loose resolution even though the large majority of CPC games only use a modest speccy resolution (256x192...).

a common 640x480 display could get a few extra vertical overscan but can't deal with horizontal overscan, yet it can deal with X-standard Mode2.

What you may aim at is something able to get a 768 horizontal display, and perhaps 512 vertical one (256 is nice enough, but 272 is somewhat used for a few graphics...)

Good point : modern screen can be fliped, but are rarely 4/3 or 3/4 or 5/4...

So I guess some stuff to get re-dimensions may be welcomed.
Also beware of hasardous pixel ratios.

Pal emulation could be nice too.

A 320x240 (or 240x320) miniscreen could be nice, but would not do any Mode2 at all.

1024x768 (or 768x1024) is actually quite good...
Could do the whole overxscan modes...

=1024/4 = 256 : a correct vertical overscan/fullscreen, quite "safe zone" and somewhat supported by games (Arkanoid?)
=768 being the overscaned horizontal Mode2... (768/384/192...)

http://en.wikipedia.org/wiki/List_of_displays_by_pixel_density (http://en.wikipedia.org/wiki/List_of_displays_by_pixel_density)

Haha, lurk for an Ipad (1st gen) monitor then...

The ideal is to aim at monitors/screens with pixels ratio of 1:1 or even 2... mode2 is the de facto CPC stapple reference and is 2 (or 1/2 depending the flip of the screen).

Perhaps we should do some page to reference the CPC friendly modern LDCD/Flat screen (big or mini) which could be cannibalised..? 


some not so modern Cameras may have nice monitor to cannibalize too I guess...
Some 720x480 resolution could give a good enough safe zone...


in mode1 this goes for a decent 360x240.
Speccy ports and spanish games would still pull a large border, but you may not be able to check remaining lives or score while playing Arkanoid.



Title: Re: Portable C64
Post by: Bryce on 15:19, 24 March 13
The CPC mainboard doesn't use anything close to 3A. In fact it pulls just a tiny bit over 1A even when it's fully loaded. A modern Laptop battery could keep it going for quite a while.

Bryce.

Title: Re: Portable C64
Post by: redbox on 15:02, 25 March 13
This would be easier:

(http://www.giftedpenguin.co.uk/images/products/medium/1350898169-94580000.jpg)

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