TV Test Suite

[retro space]

We all know the 240p test suite, the SNES cartridge / PS1 disc to test a TV with the picture of the pederast / pencil flasher on the main menu, but I need something comparable for PAL, beyond 240 lines, expanded to 256 vertical lines, so for example 256x352 pixels and with a 16x16 or 32x32 grid pattern. Or even 272x368 I think the CPC can do that with the "overscan" mode. Does anybody know of an existing program for the CPC that does something like that?

[Gryzor]

With the picture of the... what now?

[retro space]

With the picture of the... what now?

Preferably without. So weird nobody swapped it for a nice anime girl or something. Or even Rick Dangerous. But to be honest, just a grid will do.

[dodogildo]

Something similar will do. Nice catch, it's crazy nobody did it with CPC before. All screen modes would be nice. Overscan too.

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[Kris]

mire © _public_domain_ (2019)

[Nich]

I recall a commercial CPC program called Setuprog that was published in the mid-1990s and displayed a test card - but I would have to dig deep into my archive of discs to try to locate it.

[Devlin]

We all know the 240p test suite, the SNES cartridge / PS1 disc to test a TV with the picture of the pederast / pencil flasher on the main menu, but I need something comparable for PAL, beyond 240 lines, expanded to 256 vertical lines, so for example 256x352 pixels and with a 16x16 or 32x32 grid pattern. Or even 272x368 I think the CPC can do that with the "overscan" mode. Does anybody know of an existing program for the CPC that does something like that?

That person is an edit of Gillian Seed, from the Snatcher series. Edited to look like Peter Falk as Columbo(i'm guessing)

i'm guessing that the source image was from Snatcher SD (image attached)

[retro space]

mire © _public_domain_ (2019)

This image is 768x544, does that mean it is in blocky 2x2 mode and 272x384 on a real CPC?

[eto]

mire © _public_domain_ (2019)

This image is 768x544, does that mean it is in blocky 2x2 mode and 272x384 on a real CPC?

More likely that it's in MODE 0 and has 192x272 pixels. The 272 pixels height is quite close to the visible lines of a PAL TV (288 lines).

I'm not really sure where you got the 272x384 or 256x352 from. That sounds a bit like x and y got mixed up.  

[retro space]

mire © _public_domain_ (2019)

This image is 768x544, does that mean it is in blocky 2x2 mode and 272x384 on a real CPC?

I'm not really sure where you got the 272x384 or 256x352 from. That sounds a bit like x and y got mixed up. 

Those numbers are in the Wiki

[eto]

I'm not really sure where you got the 272x384 or 256x352 from. That sounds a bit like x and y got mixed up. 

Those numbers are in the Wiki

where?

[retro space]

This then allows with a video memory of 24 KB (approximately) to displays on the standard screen up to :

• Full screen Mode 0: 192×272 pixels with 16 colors (4 bpp)
• Full screen Mode 1: 384×272 pixels with 4 colors (2 bpp)
• Full screen Mode 2: 768×272 pixels with 2 colors (1 bpp)

https://www.cpcwiki.eu/index.php/Video_modes

I accidenitally reversed them, but I "see through that" as in code Y goes first all the time when nesting the for loops. Line count and dots per line.... No problem with both x,y and y,x, as you see what the scanline count is easily.

[Egg Master]

Nice catch, it's crazy nobody did it with CPC before. All screen modes would be nice. Overscan too.

This one programmed by SyX in 2011: https://www.cpc-power.com/index.php?page=detail&num=16722