Do you know what CPU there is in the Series 60 phones, DJ?

My guess is 60 MHz

100mhz

who bids more?

Not me, but they shouldda called it the Series 100 then

It depends on the phone, Series 60 platform itself does not dictate the MHz On a 7650 or 3650 I think it's 103MHz.

And yes, I could speed up the disk access with the cost of memory. Now I'm not loading the dsk file into RAM at all and that's why it's slow - for every MSX disk access it will open/seek/read/close the Symbian OS file... stupid but saves memory Furthermore, if you use gzipped dsk files it's even worse as you can probably guess...

Humm, I think that not so many people have read my posts in this thread... Nokia 7650 and 3650 are based on a StrongARM Risc Processor at 104 Mhz. About the new Series 60 phones, like the N-Gage, I don't know what processor do they have, but you can bet for it will be the very same...

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And yes, I could speed up the disk access with the cost of memory. Now I'm not loading the dsk file into RAM at all and that's why it's slow - for every MSX disk access it will open/seek/read/close the Symbian OS file... stupid but saves memory Furthermore, if you use gzipped dsk files it's even worse as you can probably guess...

How many RAM has the Nokia 7650/3650 phones? Do they use the internal phone memory as system RAM?

I thought the 3650/7650 both have 4mb systemram? And those new Series60 Nokia phones have 8 mb, I believe....

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Humm, I think that not so many people have read my posts in this thread... Nokia 7650 and 3650 are based on a StrongARM Risc Processor at 104 Mhz.

IMHO it's not a StrongARM, because it supports the ARM THUMB instruction set -- which StrongARM does not support....

Yes, the 7650/3650 has about 4MB free RAM for applications. Furthermore, usually the heap size for a single GUI application is limited to 1MB but it is possible to define a different maximum in your own application.

There is also an internal RAM drive (the D: drive), which I was thinking of maybe using as a temporary storage for disk images to improve performance - the C: drive is not that fast because it resides in the flash memory which is slower than RAM.

Because on a phone the keyboard is rather limited I was thinking of adding a menu in the emulator that allows the user to select a file from the disk image to be launched from BASIC since not all games run automatically. I know this can be fixed by using a real MSX or some other emulator to first create a disk that contains autoexec.bas that would give the user a menu of the games on the disk but it would be easier if you wouldn't have to do it. Also, this would be handy with tape images...

So, I was wondering if someone would know which address in the BASIC ROM I could trap or if there is some other way of detecting when the system has reached the BASIC ok prompt. Also, is there a nice way to feed the BASIC interpreter the command tokens other than simulating actual keypresses from the PPI?

You could start using C-BIOS which already HAS a feature that lists all files on a disk and gives you the option to start one. Besides, distributing this BIOS is - as far as I know - legal.

Indeed, I guess that it would be so nice if the package of the emulator come with C-BIOS as MSX rom. The bad part is that C-BIOS is only MSX 1 rom, right?

Oh, and btw, I guess that everybody has noticed about the keyboard buffer problem on the 7650/3650, that make the response of the phone keyboard so slow, and our keystrikes are saved on a internal buffer that is executed maybe one second later... Because of that, most of shot'em up are unplayable...

Is there anything that you can do Jr? Or is it a hardware problem as I suspect?

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You could start using C-BIOS which already HAS a feature that lists all files on a disk and gives you the option to start one. Besides, distributing this BIOS is - as far as I know - legal.

Hmm, yes I suppose I could do that, v0.17 seems to be under 5kB compressed.

However, correct me if I'm wrong but I think C-BIOS does not contain a BASIC interpreter nor does it work with disks unless you have the original Disk ROM...