Homebrew gbaemu4ds: GBA emulator for DS(i) (DSi Entry)

[ichichfly]

"(most gba files must be patched)"

Do you mean patched with the DLDI tool ?

Aw, by the way, which release do I downoad ? I'm using a flashcart on a DS Lite.

you only need to patch if you use the hyper speed all other don't need patches. The patcher for hyper speed is in the zip file if you patch a gba it can no more be used by a normal gba or a gba emulator only with the hyper speedup version of the emulator

you can use all versions but ensure you only allocated 2 MB not more.

QUOTE(heartgold @ Aug 1 2011, 12:14 PM) So what kind of frame-rate is the emulator capable of in DS mode and Dsi mode?

that question is not easy to answer because there are different refresh rates and speeds.

Normal speed is 200-50 % of the normal gba that means if not some special sound functions or load fuktion (most load fuktions are fast) are used
direct graphic I/O (exception DISPCNT) goes direct to the hardware so no delay there
also OAM and Palette RAM and in Video Mode 0-2 Backgrounds also
only in Video Mode 3-5 the Background data has a refresh rate of 6Hz the OBJ Tiles have also 6Hz refresh rate remember that OAM goes direct to the hardware

so most parts depend on the gba program or the Display that has 59.8261 Hz


Update r12 http://ichfly.github.com/gbaemu4DS/ (hyperspeedup) (only very very few homebrew work I think ~10-15 %) (most gba files must be patched)(speed normally 50-200% of the original gba speed)

Untested but hope it work now irq added
Features Behind-the-Scenes improvements to system performance (short cuts added)
swi 6 fixed

 

[thakadesign]

Can you tell me a playable rom that is working?? .. for it found no

 

[Fishaman P]

Features Behind-the-Scenes improvements to system performance (short cuts added)

Nice Ninty update reference!

 

[heartgold]

that question is not easy to answer because there are different refresh rates and speeds.

Normal speed is 200-50 % of the normal gba that means if not some special sound functions or load fuktion (most load fuktions are fast) are used
direct graphic I/O (exception DISPCNT) goes direct to the hardware so no delay there
also OAM and Palette RAM and in Video Mode 0-2 Backgrounds also
only in Video Mode 3-5 the Background data has a refresh rate of 6Hz the OBJ Tiles have also 6Hz refresh rate remember that OAM goes direct to the hardware

so most parts depend on the gba program or the Display that has 59.8261 Hz

50%-200% speed of gba, that is incredible for homebrew. What about commercial roms?

 

[ichichfly]

Can you tell me a playable rom that is working?? .. for it found no

I have only tested some teck demos yet this work at last in one of the versions I don't know if they stll work

some of them only work if they are patched

http://www.gbadev.org/demos.php?showinfo=553
http://www.gbadev.org/demos.php?showinfo=447
http://www.gbadev.org/demos.php?showinfo=637
http://www.gbadev.org/demos.php?showinfo=235
http://www.gbadev.org/demos.php?showinfo=213 (slow?)
http://www.gbadev.org/demos.php?showinfo=465
http://www.gbadev.org/demos.php?showinfo=350
http://www.gbadev.org/demos.php?showinfo=1323
http://www.gbadev.org/demos.php?showinfo=338 (slow)
http://www.gbadev.org/demos.php?showinfo=527 (slow)
http://www.gbadev.org/demos.php?showinfo=486
http://www.gbadev.org/demos.php?showinfo=1298
http://www.gbadev.org/demos.php?showinfo=331
http://www.gbadev.org/demos.php?showinfo=323 (not all)

QUOTE(ichichfly @ Aug 1 2011, 01:08 PM) that question is not easy to answer because there are different refresh rates and speeds.

Normal speed is 200-50 % of the normal gba that means if not some special sound functions or load fuktion (most load fuktions are fast) are used
direct graphic I/O (exception DISPCNT) goes direct to the hardware so no delay there
also OAM and Palette RAM and in Video Mode 0-2 Backgrounds also
only in Video Mode 3-5 the Background data has a refresh rate of 6Hz the OBJ Tiles have also 6Hz refresh rate remember that OAM goes direct to the hardware

so most parts depend on the gba program or the Display that has 59.8261 Hz

50%-200% speed of gba, that is incredible for homebrew. What about commercial roms?

sorry I don't think that commercial roms work yet

Upadate rev.13 http://ichfly.github.com/gbaemu4DS/
prefetch fail fixed by workaround and on the fly patch slow down everything a bit (I/O and gba card emulation) but it work (http://www.gbadev.org/demos.php?showinfo=338 (ARM Plasma) work now slow but work)

 

[Normmatt]

ichfly, you forgot to add woraround.h to github

EDIT: You appear to have added them now but incorrectly to github it inserted your full path including drive letter. I'm now getting errors saying anytimejmpfilter isn't defined anywhere.

EDIT2: ewwwww why are you patching libnds directly :S

 

[ichichfly]

ichfly, you forgot to add woraround.h to github

OK added all missing files

I know woraround

 

[Rinzler]

Eww, do we still have to patch the files ? And what files shoud I patch ?

Ohh and the r5 works but when I'm going through :fat/, I can't find any gba files nor on the arm9. And you've said that the malloc set was good, but when I wanna play Goldeneye, I only press start and it fails ... Dunno what to do, help please

 

[ichichfly]

Eww, do we still have to patch the files ? And what files shoud I patch ?

Ohh and the r5 works but when I'm going through :fat/, I can't find any gba files nor on the arm9. And you've said that the malloc set was good, but when I wanna play Goldeneye, I only press start and it fails ... Dunno what to do, help please

Eww, do we still have to patch the files ? And what files shoud I patch ?
yes that can't be fixed since some are selecting the patches to get better compatibility and don't use the auto select
patching is only needed for hyper speedup

And you've said that the malloc set was good, but when I wanna play Goldeneye, I only press start and it fails ... Dunno what to do, help please

wen you are in the malloc screen press right 4 times and 3 times down than start than it should work

QUOTE(Rinzler @ Aug 2 2011, 01:37 PM)

Ohh and the r5 works but when I'm going through :fat/, I can't find any gba files nor on the arm9

that may depend on the file browser it should show the files on the sd in the slot-1 card but it is not working every time you may have to get less files in the root of the sd

ADD:all workarounds fixed

ADD2: I am patching libnds directly because it was a fast solution and than I get 0x140 Byte itcm memory free I don't need that memory any more

 

[Normmatt]

By the way instead of patching out the swi's why not just replace the arm9 swi handler with your own? then you wouldn't need to patch the rom at all?

 

[ichichfly]

By the way instead of patching out the swi's why not just replace the arm9 swi handler with your own? then you wouldn't need to patch the rom at all?

I thought I can only change the Exception Vectors from 0x0FFF0000 to 0xFFFF0000 and both are not writable but some other sources are now saying it can be changed to 0x00000000 so I haven't tryed it but now I will try it soon

OK libnds say it works


@-------------------------------------------------------------------------
@ Region 2 - alternate vector base
@-------------------------------------------------------------------------
ldr r0,=( PAGE_4K | 0x00000000 | 1)
mcr p15, 0, r0, c6, c2, 0

 

[Rinzler]

Ehm, although I only need to use the hwspeedup, should I also patch the arm9 ?

And btw, do I have to patch the file hwspeedup, or the files inside hwspeedup ?

 

[Fishaman P]

So... is Normmatt becoming a co-dev?

 

[thakadesign]

The project goes doing great ... congratulations ...
you are expected when would load commercial roms.?

 

[Mbmax]

The project goes doing great ... congratulations ...
you are expected when would load commercial roms.?

I'm not sure the DS version will one day run commercial roms. This require more memory than the DS mode can provide.

@ichfly : thanks for the last update.

 

[thakadesign]

Tested game ...

http://www.gbadev.org/demos.php?showinfo=1275 workkks
http://www.gbadev.org/demos.php?showinfo=1353 workss

 

[koimayeul]

no trolling or flaming i can't see the point of this homebrew with the slot 2 cards still available and some slot 1 gba capable emulation but good luck on it, i guess >

 

[spinal_cord]

no trolling or flaming i can't see the point of this homebrew with the slot 2 cards still available and some slot 1 gba capable emulation but good luck on it, i guess >

 

[Deleted-236924]

no trolling or flaming i can't see the point of this homebrew with the slot 2 cards still available and some slot 1 gba capable emulation but good luck on it, i guess >

 

[MSaki]

not getting off topic but if everyone has that much of a problem with dsi and slot 2 just find the pinouts and solder a slot back on one or just upgrade the ram chip.....who cares i like my dsi xl the way it is

also this is for dsi and ds without slot2 carts as lots of people either don't want to pay $40 or just like to see the progress of a gba emulator running without slot 2 cart as i tested the goomba gba emu and sonic 1 gba homebrew re-make it ran very well.

also slot 1 cards like iplayer and others who have the built in ram isnt fun to me as its running from in the card not the actual system......

night