Homebrew ARM9Loader -- Technical Details and Discussion

[Zyrmkel]

I'm lost, what is this backlight?
*Sorry for noob question, first time hearing about this*

that fancy light stuff you see

 

[Svaethier]

Can't wait for decrypt9 to have a boot release now.

 

[Bu2d85]

Backlight bitches.

bilis and mid-kid get all of the props for this one

Spoiler: Image

About 20 mintes ago in another thread I said al9h would not be worth the trouble until the screen was functional and there was a decent settings/recovery menu. You're just about there.

I guess I will be downgrading to 2.1 in the next couple of weeks.

 

[Neru]

that fancy light stuff you see

I know about the light XD not really what I meant, but my question was answered already

 

[Plailect]

About 20 mintes ago in another thread I said al9h would not be worth the trouble until the screen was functional and there was a decent settings/recovery menu. You're just about there.

I guess I will be downgrading to 2.1 in the next couple of weeks.

The n3ds unbrick script will be updated soon to have more error checking, so that should help if you have one

 

[Bu2d85]

The n3ds unbrick script will be updated soon to have more error checking, so that should help if you have one

Nice, I will be doing this without a hardmod so every little bit helps.

 

[Zyrmkel]

Nice, I will be doing this without a hardmod so every little bit helps.

I just did mine without a hardmod, Just make sure you have a sysnand backup for obvious reasons

 

[hippy dave]

Nice snow

 

[tvall]

Nice snow

been lurking the irc this is happenin on. the last build doesnt have snow there moar hype

 

[urherenow]

Backlight bitches.

bilis and mid-kid get all of the props for this one

Wait... is that all that was needed for the display to work on an a9lh boot? Turn on the backlight?

 

[Supster131]

Wait... is that all that was needed for the display to work on an a9lh boot? Turn on the backlight?

Not as simple, lol.

 

[dark_samus3]

Wait... is that all that was needed for the display to work on an a9lh boot? Turn on the backlight?

no, we had LCD init (look a few pages back) but no backlight, now we have both

 

[tvall]

Wait... is that all that was needed for the display to work on an a9lh boot? Turn on the backlight?

first they had to turn on the lcd. that was achieved yesterday. it worked, but you couldnt see anything. today they turned on the backlight.

 

[Shadowtrance]

Can't wait for decrypt9 to have a boot release now.

It already HAS ONE.... and has for a long time now.

 

[dark_samus3]

It already HAS ONE.... and has for a long time now.

ehh, actually the way it's set up right now we might need to rework it a bit... (framebuffer is set to the gateway values I think)

 

[Shadowtrance]

ehh, actually the way it's set up right now we might need to rework it a bit... (framebuffer is set to the gateway values I think)

There's 2 sets of values for the screens that D9 uses...
See this section in draw.h

The raw .bin brahma payload is built with the bootsrap flag.

#ifdef EXEC_GATEWAY
    #define TOP_SCREEN0 (u8*)(*(u32*)((uint32_t)0x080FFFC0 + 4 * (*(u32*)0x080FFFD8 & 1)))
    #define BOT_SCREEN0 (u8*)(*(u32*)((uint32_t)0x080FFFD0 + 4 * (*(u32*)0x080FFFDC & 1)))
    #define TOP_SCREEN1 TOP_SCREEN0
    #define BOT_SCREEN1 BOT_SCREEN0
#elif defined(EXEC_BOOTSTRAP)
    #define TOP_SCREEN0 (u8*)(0x20000000)
    #define TOP_SCREEN1 (u8*)(0x20046500)
    #define BOT_SCREEN0 (u8*)(0x2008CA00)
    #define BOT_SCREEN1 (u8*)(0x200C4E00)
#else
    #error "Unknown execution method"
#endif

 

[dark_samus3]

There's 2 sets of values for the screens that D9 uses...
See this section in draw.h

The raw .bin brahma payload is built with the bootsrap flag.

#ifdef EXEC_GATEWAY
    #define TOP_SCREEN0 (u8*)(*(u32*)((uint32_t)0x080FFFC0 + 4 * (*(u32*)0x080FFFD8 & 1)))
    #define BOT_SCREEN0 (u8*)(*(u32*)((uint32_t)0x080FFFD0 + 4 * (*(u32*)0x080FFFDC & 1)))
    #define TOP_SCREEN1 TOP_SCREEN0
    #define BOT_SCREEN1 BOT_SCREEN0
#elif defined(EXEC_BOOTSTRAP)
    #define TOP_SCREEN0 (u8*)(0x20000000)
    #define TOP_SCREEN1 (u8*)(0x20046500)
    #define BOT_SCREEN0 (u8*)(0x2008CA00)
    #define BOT_SCREEN1 (u8*)(0x200C4E00)
#else
    #error "Unknown execution method"
#endif

Yes Ik, I was just saying that all of the current payloads probably won't work with the bootstrap branch since it uses a different framebuffer address

 

[Shadowtrance]

Yes Ik, I was just saying that all of the current payloads probably won't work with the bootstrap branch since it uses a different framebuffer address

Ah fair enough. I just woke up... leave me alone! lol

 

[ArmoredGuns1]

Do we need to install the 3dsx again in order to have the screen init, or will just an updated payload on the SD card will suffice?

 

[dubbz82]

Do we need to install the 3dsx again in order to have the screen init, or will just an updated payload on the SD card will suffice?

I'd GUESS new payload should be enough, since I believe all the 3dsx itself does is redirect the bootloader to point at the payload...