Symbian emulator?

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Por jr

Champion (377)

Imagen del jr

15-09-2003, 09:01

I wonder... there are other mobile phones running Symbian, right? What does it take to get fMSX/60 running on those phones? (fMSX/Symbian ;P)

Basically nothing, it should work as-is. That's the nice thing about the Series 60 platform, they are all binary compatible.

Of course, if you mean other Symbian based systems than Series 60, there are things to do - how much, depends on which system but recompilation is necessary for sure. The main architectural difference lies in the UI handling as plain Symbian OS does not have a GUI at all. Since I don't use the operating system's UI libraries too much it might still be relatively easy to port the UI code. I have been thinking about trying out a different UI approach for the menus, though - something like what the Series 60 messaging center has.

Also depending on the Symbian OS version some of the other subsystem APIs may be different.

The closest relative Symbian OS based product to current Series 60 phones might be Nokia's latest Communicator series (92xx). For those it would be rather easy to port the emulator. Dunno if they have enough processing power, though, as they have slower CPUs and bigger screens than current Series 60 based phones.

Do you have something specific in mind? Wink

Por jr

Champion (377)

Imagen del jr

15-09-2003, 09:11

The new caching sceme is marvellous! Gzipped 720kb Diskimages are playable now w/o problems!

Thanks - I still have one improvement in mind for the disk performance. Keeping the first n tracks of the disk in the cache all the time would give yet a small boost because now if the system is reading small files from the end of the disk it will read sectors from the beginning and end of the disk and the cache doesn't work too well with that (it has a sliding window). With the first n tracks in the cache all the time the access to boot sector, FAT and directory entries would not hurt the disk data cache. I'll see what I can do for that =)

Por jr

Champion (377)

Imagen del jr

15-09-2003, 15:41

Second, if I may offer a suggestion, it would be great to be able
to map joystick diagonal combinations like Left+Up, Right+Up, Left+Down, Right+Down
onto a single key. I am not sure that Symbian supports multiple key presses,
and even if it does the 3650's "joystick" key does not seem to allow
to press diagonals.

Stan,

The OS supports multiple simultaneous keypresses. I don't know about 3650's hardware limitations. Your suggestion is anyway doable, I'll put it on my to-do list - thanks for the input!

Por Sousuke

Master (177)

Imagen del Sousuke

23-09-2003, 03:38

Here another update of ROMPackager (v1.01).
This small update took a while, because I was a little bit busy Shocked!

As jr has suggested, it's now possible to edit the package dependency, so I don't have to release a new ROMPackager for each version of fMSX/S60 Wink

Changes since v1.00:
* added package loader
* added package configuration editor
* minor (and unimportant Wink) fixes here and there

DOWNLOAD :)

Por karloch

Prophet (2157)

Imagen del karloch

23-09-2003, 11:44

Excellent work Saosuke! I just can't wait to see the new version of the fMSX/S60 that it is already a great emulator.

Thank you guys for your work and dedication ^^

Por jr

Champion (377)

Imagen del jr

01-10-2003, 13:01

Sorry for the long silence, I've also been occupied with other stuff lately. I have implemented the diagonal key support for joystick emulation, improved the disk caching by having boot, FAT and root directory sectors always cached and added an option to choose between PAL/NTSC system. Previously the system was always NTSC (60Hz), now I changed the default to PAL (50Hz).

I have also been testing and tweaking sound support - it is (still) working in the Symbian emulator on PC with some sync problems but I guess it would be usable - I will run some final tests on a 7650 this week and if it runs out of CPU power then I will skip the sound support for 7650/3650 and wait for the 6600 to come out and I'll try again with it.

So I guess I'll see what happens with the sound support and release 0.95 after that...

Por Latok

msx guru (3870)

Imagen del Latok

01-10-2003, 13:19

Thank you very much for these updates, we're looking forward to the next release!!

About the sound Smile, isn't it possible to switch the sound on and off then? So if CPU power is running out, just disable the sound. It would be great if sound is supported, it plays such a defining role in the MSX as a computersystem.

Por jr

Champion (377)

Imagen del jr

01-10-2003, 13:27

About the sound Smile, isn't it possible to switch the sound on and off then? So if CPU power is running out, just disable the sound. It would be great if sound is supported, it plays such a defining role in the MSX as a computersystem.

Well yes, but if it is like that in general then I see no point in having the possibility to enable sound in the first place since the CPU power for a 7650 or 3650 is not going to increase... =)

But in any case, this is exactly why I'm so reluctant to add the sound support - because it basically sucks, it's only like giving you _some_ sound to replace the complete silence... but it isn't in sync and doesn't sound right otherwise either, hehe.

Por jr

Champion (377)

Imagen del jr

01-10-2003, 13:31

...which makes me wonder if there would be any point in creating a KSS codec for Series 60... but don't look this way =)

Por Latok

msx guru (3870)

Imagen del Latok

01-10-2003, 13:42

And emulating only the PSG? Would that work?

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