Is it confirmed that the WRAM is 256KB now? Or was that just a wild rumour?

----- Original Message -----
From: "Web Dreamer" <rownik@...>
To: <gbadev@egroups.com>
Sent: Saturday, August 05, 2000 5:39 AM
Subject: Re: [gbadev] GBA Specs


> >1. How much Ram the GBA has (compared to the 32k the GBC has)?
>
> I believe it's down to 32K of work ram, and now 256K on cart... strange as
> it sounds. There is also the video memory, registers, etc.
>
> >2. How many Sprites the GBA can display (compared to the GBC 40)?
>
> 128 on screen at 64x64 size, and 128 PER SCANLINE at 8x8 size.
>
> >3. What sprite modes are available (i.e. 8x8, 8x16, 16x16, ...)?
>
> 16 different sizes from 8x8 to 64x64.
>
> >4. The Attributes Setup (i.e. what is in it, how many bytes each
> >sprite takes up)?
>
> 4 bytes, including flags for h and v size, mosaic, color mode,
> semi-transparent... etc etc etc
>
> >5. How tiles are stored in memory (i.e. like GBC, but with 4 planes
> >instead of 2)?
>
> um... brain just went blank.
>
> >6. The number of "Backgrounds" or "layers" the GBA has (compared to
> >the background and window the GBC has, and anything fancy about them)?
>
> um 4, IIRC. Each scrollable, 2 rotateable/scalable. OBJ's moveable between
> layers.
>
> >7. If any special tile modes exist (i.e. 16x16 tiles in the
> >background
> >instead of the normal 8x8 or such)?
>
> See above.
>
> >8. How the Palettes are set up (i.e. how you load them, is it like
> >the
> >GBC with 2 registers you work with)?
>
> Regular old palette ram. In flavors of 256 colors in 1 palette or 16
colors
> in 16 palettes... with, of course, color 0 being transparent on the
display,
> like GBC OBJ's.
>
> >9. Anything else really cool (such as the priority bit of the
> >attributes on the GBC, If individual sprites can have an Alpha
> >Channel
> >applyed to them, If Sprites can be rotated or scalled, etc...)?
>
> Well, plenty of things... BG maps ranging in size from 128x128 to
1024x1024
> with wraparound, mosaic effects, alpha blending (not too sure how well it
> works yet), hardware LCD fade control, windows... itsa gonna be a really
> nice leetle plataform to geta you hands on...;-)
>
> WD
> ________________________________________________________________________
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
>
>
>
>
> unsubscribe: gbadev-unsubscribe@egroups.com
>
>
>
>