ECS screen mode colours.

redblade · 20 June 2010, 02:52

From Wikipedia:
Chipset: Enhanced Chip Set (ECS)

* Video (Common resolutions):
o 640×400i with 16 colors
o 640×480 with 4 colors
o 800×600i with 4 colors (Super72)

Are the 16 and 4 colours user definable from the 4096 palete or are they predefined grey scale colours.

Thanks in advance.

Don't have a real amiga on me, only have a win32 laptop with the mega mighty WinUAE.

rkauer · 20 June 2010, 03:51

The palette is fully configurable by the user. The major impediment to use higher resolutions (like productivity, which the ECS chipset can cope) is the amount of chip RAM you have on the machine.

telbee · 20 June 2010, 03:51

Can't remember exactly, but I think they're defineable...
.o0(now where did I leave dPaintIV...)

Cammy · 20 June 2010, 04:35

With an Indivision ECS you can get 800x600 in 16 colours too, which I think would be awesome to check out. Of course all the colours are always adjustable with Workbench's Palette Preferences.

Toni Wilen · 20 June 2010, 08:28

ECS superhires modes can only have max 4 colors from palette of 64. (2 bits per color component only)

ADDED: you need non-AGA KS ROM if you want to test this using WinUAE. AGA ROMs don't support ECS superhires color limits.

Cammy · 20 June 2010, 09:46

I just put my A600 in Super High Res mode and went through all my 4-colour palette presets to see how they would look in the limited 64 colour palette, and sure enough they did look different, but it seems like most of the colours and shades were pretty accurate so at least it must have a decent 64 colour palette in Super High Res modes. I wonder how different it is to the Sega Master System's 64 colour palette.

Toni Wilen · 20 June 2010, 10:42

OCS/ECS color palette: 4 bits per RGB color component (0-15) 16*16*16=4096 colors

ECS superhires color palette: 2 bits per RGB color component (0-3) 4*4*4=64 colors (palette registers are also "scrambled" in this mode, this mode is a hack, Denise chip technology was not fast enough)

AGA: 8 bits (0-255) 256*256*256=16M colors

redblade · 27 June 2010, 03:18

Thanks people.

LocalH · 27 June 2010, 22:04

Cammy: I think the ECS 64-color palette is the same as the SMS 64-color palette.

pandy71 · 27 June 2010, 23:46

Quote:

Originally Posted by LocalH

Cammy: I think the ECS 64-color palette is the same as the SMS 64-color palette.

http://amigadev.elowar.com/read/ADCD.../node00A4.html

rkauer · 28 June 2010, 05:30

LSD can make you see 16.8 million colours on the ECS palette, you know?

20 June 2010, 02:52	#1
redblade Zone Friend Join Date: Mar 2004 Location: Middle Earth Age: 40 Posts: 2,127	ECS screen mode colours. From Wikipedia: Chipset: Enhanced Chip Set (ECS) * Video (Common resolutions): o 640×400i with 16 colors o 640×480 with 4 colors o 800×600i with 4 colors (Super72) Are the 16 and 4 colours user definable from the 4096 palete or are they predefined grey scale colours. Thanks in advance. Don't have a real amiga on me, only have a win32 laptop with the mega mighty WinUAE.

20 June 2010, 03:51	#2
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 58 Posts: 3,482	The palette is fully configurable by the user. The major impediment to use higher resolutions (like productivity, which the ECS chipset can cope) is the amount of chip RAM you have on the machine. Last edited by rkauer; 21 June 2010 at 05:46. Reason: voices in my head told me so

20 June 2010, 08:28	#5
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,502	ECS superhires modes can only have max 4 colors from palette of 64. (2 bits per color component only) ADDED: you need non-AGA KS ROM if you want to test this using WinUAE. AGA ROMs don't support ECS superhires color limits. Last edited by Toni Wilen; 20 June 2010 at 09:28.

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20 June 2010, 03:51	#3
telbee Registered User Join Date: Jun 2010 Location: Northern Ireland Age: 53 Posts: 16	Can't remember exactly, but I think they're defineable... .o0(now where did I leave dPaintIV...)

20 June 2010, 04:35	#4
Cammy Registered User Join Date: Aug 2007 Location: Tasmania, Australia Age: 39 Posts: 1,189	With an Indivision ECS you can get 800x600 in 16 colours too, which I think would be awesome to check out. Of course all the colours are always adjustable with Workbench's Palette Preferences.

20 June 2010, 09:46	#6
Cammy Registered User Join Date: Aug 2007 Location: Tasmania, Australia Age: 39 Posts: 1,189	I just put my A600 in Super High Res mode and went through all my 4-colour palette presets to see how they would look in the limited 64 colour palette, and sure enough they did look different, but it seems like most of the colours and shades were pretty accurate so at least it must have a decent 64 colour palette in Super High Res modes. I wonder how different it is to the Sega Master System's 64 colour palette.

20 June 2010, 10:42	#7
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,502	OCS/ECS color palette: 4 bits per RGB color component (0-15) 161616=4096 colors ECS superhires color palette: 2 bits per RGB color component (0-3) 444=64 colors (palette registers are also "scrambled" in this mode, this mode is a hack, Denise chip technology was not fast enough) AGA: 8 bits (0-255) 256256256=16M colors

27 June 2010, 03:18	#8
redblade Zone Friend Join Date: Mar 2004 Location: Middle Earth Age: 40 Posts: 2,127	Thanks people.

27 June 2010, 22:04	#9
LocalH Amiga user since 1990 Join Date: Aug 2004 Location: Kingsport, TN / USA Age: 44 Posts: 295	Cammy: I think the ECS 64-color palette is the same as the SMS 64-color palette.

28 June 2010, 05:30	#11
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 58 Posts: 3,482	LSD can make you see 16.8 million colours on the ECS palette, you know?

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