Homebrew Homebrew Development

[ichichfly]

Is someone experiencing like me glitches drawing in ARM11 mode? I have the problem that randomly the value of some pixels don't change (even if the new value is correctly stored in the buffer, I checked it). Drawing in other position of the screen makes appear gradually the previously not correctly showed pixels. Very strange. Probably some sync problem with GPU.

If you want I can post the ARM11 version of my TE3DS to show more clearly the problem.

It's very annoying now that I can use the touchpad and the joystick. I would like to code somethin new, but I'm stuck on this problem.

use
u32 mcrVal=0x0;
__asm__ ("mcr p15, 0, %[val], c7, c14, 4" :: [val] "r" (mcrVal)); //flush
__asm__ ("mcr p15, 0, %[val], c7, c10, 4" :: [val] "r" (mcrVal)); //Data Synchronization Barrier Register


after you wrote the buffer that should fix the problem + you need to sync to the frames (you can also swap the buffer manually with a GPU register (you can use the GPU register only on the arm11)) or write to both buffer

... and sdmmc library doesn't work anymore in ARM11.

well it only works on the arm9 what have you expected (you can use a static buffer in the mem to send data to the other processor)

 

[Deleted User]

Found the cause of not being able to get the code working, it's a problem of Python with Win 7 causing to not passing arguments to py scripts, so the kfs.bin isn't compiled (i get an empty file).

Here some hints to solve it case someone else has the same problem: http://bugs.python.org/issue7936

Wow, that link helped me out. Thanks for helping me solving this nasty bug. I wonder why they didnt include that easy bugfix in the new installer of python...

 

[nop90]

use
u32 mcrVal=0x0;
__asm__ ("mcr p15, 0, %[val], c7, c14, 4" :: [val] "r" (mcrVal)); //flush
__asm__ ("mcr p15, 0, %[val], c7, c10, 4" :: [val] "r" (mcrVal)); //Data Synchronization Barrier Register


after you wrote the buffer that should fix the problem + you need to sync to the frames

I don't full understand your hint, but I'll study on it. Thanks.

(you can also swap the buffer manually with a GPU register (you can use the GPU register only on the arm11)) or write to both buffer

I was tyrying to swap buffers writing to the register. I adapted the code from Smea examples, but it doesn't work or I did something wrong.

Anyway I don't need to write to both buffer, an solved the problem of the bad pixels writing always on the back buffers than copying to front buffers with a memcopy.

well it only works on the arm9 what have you expected (you can use a static buffer in the mem to send data to the other processor)

Using the ARM11 jump by Kane, I don't have anymore control on ARM9. Too less time and too little knowledge to modify Kane work.

Thank you.

 

[ichichfly]

I don't full understand your hint, but I'll study on it. Thanks.


I was tyrying to swap buffers writing to the register. I adapted the code from Smea examples, but it doesn't work or I did something wrong.

You can not use IPC after you have used the exploit you have to write to the GPU register directly. Or restore the arm9 IPC stuff + swap to arm11 system mode

 

[st4rk]

Hellooo \õ/

3DNES ver 0.1 in 70%

Here a new screenshot, the clearscreen working 100%, now i will work on the Joypad(x.x'').
https://twitter.com/St4rkDev/status/460451609311723520/photo/1

I tested: Super Mario, Super Mario Bros 2, Super Mario Bros 3 and work


Ps: It's very lag :/

 

[YoshiInAVoid]

Hello everyone, here my 3DNES emulator with a lot of bug(it's a prototype to test).
*Removed URL - Contains retail ROM*
Features: Super Mario Bros

The Joypad doesn't work(and my knowledge in NES is very low :c) and the clear-screen doesn't work too.

What is the filename of the NES ROM that it boots? You should also mention that your Launcher is unencrypted.

 

[st4rk]

The ROM is a .h

(Or the name of ROM ?)

 

[YoshiInAVoid]

Oh it's embedded. I just get a black screen when launching it though.

EDIT: Got it working.

 

[nop90]

Good work st4rk. If you need help let me know. I should have some free time in the next weeks.

I'm working on an emulator too, but it's in an early stage yet to make anticipations

 

[st4rk]

nop, my problem is with the lagg and screen(the blackscreen bug), if you know how fix it, send me pm please

 

[Kane49]

ARM11 and ARM9 have two different address systems

 

[st4rk]

ARM11 and ARM9 have two different address systems

Because of this the Joypad address change, right ?

 

[nop90]

Lag can be solved optimizing the code.

For the black sscreen bug, don't know exatly which is. At the moemnt I solved all my problems with screens and ARM11 is considerably faster to avoiding buffer switching (... using some tricks!).

 

[st4rk]

The right screen black :c

 

[Kane49]

Because of this the Joypad address change, right ?

http://3dbrew.org/wiki/Memory_layout

E8000000 - E8600000: mapped VRAM (18000000 - 18600000)
 
EFF00000 - F0000000: mapped Internal memory (1FF00000 - 20000000)
F0000000 - F8000000: mapped Main memory
 
FF401000 - FF402000: mapped ? (27FC7000 - 27FC8000)
 
FF403000 - FF404000: mapped ? (27FC2000 - 27FC3000)
 
FF405000 - FF406000: mapped ? (27FBB000 - 27FBC000)
 
FF407000 - FF408000: mapped ? (27FB3000 - 27FB4000)
 
FF409000 - FF40A000: mapped ? (27F8E000 - 27F8F000)
 
FFF00000 - FFF45000: mapped SlabHeap
 
FFF60000 - FFF8B000: mapped Kernel code
 
FFFCC000 - FFFCD000: mapped IO I2C second bus (10144000 - 10145000)
 
FFFCE000 - FFFCF000: mapped IO PDC(LCD) (10400000 - 10401000)
 
FFFD0000 - FFFD1000: mapped IO PDN (10141000 - 10142000)
 
FFFD2000 - FFFD3000: mapped IO PXI (10163000 - 10164000)
 
FFFD4000 - FFFD5000: mapped IO PAD (10146000 - 10147000)
 
FFFD6000 - FFFD7000: mapped IO LCD (10202000 - 10203000)
 
FFFD8000 - FFFD9000: mapped IO DSP (10140000 - 10141000)
 
FFFDA000 - FFFDB000: mapped IO XDMA (10200000 - 10201000)
 
FFFDC000 - FFFE0000: mapped ? (1FFF8000 - 1FFFC000)
 
FFFE1000 - FFFE2000: mapped ? (1FFF0000 - 1FFF1000)
 
FFFE3000 - FFFE4000: mapped ? (1FFF2000 - 1FFF3000)
 
FFFE5000 - FFFE9000: mapped L1 MMU table for VA xxx00000
 
FFFEA000 - FFFEB000: mapped ? (1FFF1000 - 1FFF2000)
 
FFFEC000 - FFFED000: mapped ? (1FFF3000 - 1FFF4000)
 
FFFEE000 - FFFF0000: mapped IO IRQ (17E00000 - 17E02000)
 
FFFF0000 - FFFF1000: mapped Exception vectors
 
FFFF2000 - FFFF6000: mapped L1 MMU table for VA xxx00000
 
FFFF7000 - FFFF8000: mapped ? (1FFF1000 - 1FFF2000)
 
FFFF9000 - FFFFA000: mapped ? (1FFF3000 - 1FFF4000)
 
FFFFB000 - FFFFE000: mapped L2 MMU tables (1FFF5000 - 1FFF8000)

 

[nop90]

The right screen black :c

Are you still using the addresses listed in thr code of your CHIP8-ARM11?

#define TOP_LEFT_FRAME1 0xF0184E60
#define TOP_LEFT_FRAME2 0xF01CB370
#define TOP_LEFT_FRAME3 0x20184E60
#define TOP_LEFT_FRAME4 0x201CB370
#define TOP_RIGHT_FRAME1 0x20282160
#define TOP_RIGHT_FRAME2 0x202C8670
#define SUB_FRAME1 0x202118E0
#define SUB_FRAME2 0x20249CF0 //539039968

Try using these (simply replace the first 2 with a F)

#define TOP_LEFT_FRAME1 0xF0184E60
#define TOP_LEFT_FRAME2 0xF01CB370
#define TOP_RIGHT_FRAME1 0xF0282160
#define TOP_RIGHT_FRAME2 0xF02C8670
#define SUB_FRAME1 0xF02118E0
#define SUB_FRAME2 0xF0249CF0

 

[Flame]

Just installed ROP installer on my 4.5 3DS so i can use st4rk NES homebrew and some how ROP installer got corrupted. the problem is, it made my DS flashcart stop working... and made me not enter the DS profile of the 3DS. it made the 3DS "Limbo"..


the way i had to Fix this was by formating my 3DS.


for future reference if anybody has this problem too.

 

[st4rk]

Just installed ROP installer on my 4.5 3DS so i can use st4rk NES homebrew and some how ROP installer got corrupted. the problem is, it made my DS flashcart stop working... and made me not enter the DS profile of the 3DS. it made the 3DS "Limbo"..


the way i had to Fix this was format my 3DS.


for future reference if anybody has this problem too.

Install the Stable ROP Loader, you can find it in this topic

 

[Flame]

Install the Stable ROP Loader, you can find it in this topic

this is the one i downloaded.

http://www.fiercewaffle.com/softwareArticle.php?id=10

 

[st4rk]

Don't use it, search for other ROP, a guy send me link some time ago, search in this topic =P