More Chipram

[Karlos]

On UAE its fine because UAE emulates custom chips that were never actually made in real life that are capable of using all 8MB of chip ram. So everything is just fine.

Of course setting 8MB of chip reduces your Z2 space as you might notice. On a real amiga this could be problematic as a lot of expansions want to live there.

[Piru]

@KThunder

in winuae if you have 8megs chip and you start up a crapload of programs screens ight get put up above 2meg right?

Naturally.

that would cause problems right if you flipped screens or doesnt it work that way?

There is no problem in WinUAE, it handles 8MB just fine. It has chipset that is able to handle >2MB chip memory without any issues. I was commenting your idea.

[KThunder]

Piru wrote:
@KThunder

in winuae if you have 8megs chip and you start up a crapload of programs screens ight get put up above 2meg right?

Naturally.

that would cause problems right if you flipped screens or doesnt it work that way?

There is no problem in WinUAE, it handles 8MB just fine. It has chipset that is able to handle >2MB chip memory without any issues. I was commenting your idea.

i was agreeing with you some stuff might get put in upper chip that the custom chips might need and that would cause problems. since my idea wouldnt fix the problem it would only partially bypass it.

[Karlos]

KThunder wrote:
so you guys have nothing in chip ram huh, nothing at all not a single byte used?
what is this thread here for then if noone uses chip ram

Yes we do have stuff in there, just not code. Graphics data, sound data all go there, where the custom chips can make use of it.

Although my graphics data tends to reside in the VRAM of my graphics card. It's only in chip ram when retrogaming ;-)

[Piru]

@KThunder

so you guys have nothing in chip ram huh, nothing at all not a single byte used?

Some graphics.library arrays and buffers, native screenmode bitmap planes (if any native screen is open), floppy track buffers, AHI 14bit audio buffers.

Typically over 2 million bytes of chip memory was free (I don't have my A1200 set up anymore).

[KThunder]

unless....

just kidding, i have never runinto any memory problems on my miggy, i did back with my 1000, but that was with 1meg of fast and 512 chip

[Piru]

@KThunder

i was agreeing with you some stuff might get put in upper chip that the custom chips might need and that would cause problems. since my idea wouldnt fix the problem it would only partially bypass it.

Well, I don't see how this "chip memory" would be any different from having the extra areas available as fast memory. You could aswell just use FBlit, and/or MCP's patch to direct chipmem allocations to fastmem. And you wouldn't need the hw modifications... :-)

[KThunder]

Piru wrote:
Well, I don't see how this "chip memory" would be any different from having the extra areas available as fast memory. You could aswell just use FBlit, and/or MCP's patch to direct chipmem allocations to fastmem.

piru im agreeing with you, discusion over it wont work
i was  interested in why it wouldnt, the main thing i didnt think of was screens. it clicked when karlos said something about bitplane data. with my video card none of that goes in chip so i didnt think of it.

[KThunder]

wait hang on a sec...
here you go:
 :bow:  :bow:  :bow:
and one of these:  :cheers:
and maybe one of these for good measure: :whack:

[Piru]

Agreed. :-)

Now, it's time to sleep a bit. Hopefully...

[KThunder]

yeah sleep is good, i work the night shift.
later

[Karlos]

@KThunder

BYW, if you really do have OS stuff in chip ram for any reason on your system, try to get a remapper tool to move it into fast ram where it should have gone in the first place. My very old Apollo1240 for instance didnt add the fast ram to the system until after exec was fully loaded and running, meaning exec and several other bits ended up in chip ram. Moving it to fast ram with first fastexec and later remapollo made a *huge* difference to the overall performance of the machine.

[leirbag28]

@stopthegop

True

I guess I will just keep it quiet for now........past this point its just arguing.

lets just see if one gets created.

I think it might :-)

[xeron]

@leirbag
and I know for a fact it won't. Anyone with the technical knowhow to bodge an entire replacement chipset (basically most of the motherboard) on top of an Amiga to gain 6Mb more chipram will realise the utter futility of the exercise when it would be easier, faster and cheaper to just make an "Amiga on an FPGA" from scratch.

[HellCoder]

I'll give it two months before someone starts a new thread.  :lol:

[Karlos]

It's almost as bad as Shaun the Bus Arch Troll :lol: