 |
| Register | Login | |||||
 |
Main
| Memberlist
| Active users
| ACS
| Commons
| Calendar
| Online users Ranks | FAQ | Color Chart | Photo album | IRC Chat |
|
| | ||
|
| Register | Login | |||||
|
Main
| Memberlist
| Active users
| ACS
| Commons
| Calendar
| Online users Ranks | FAQ | Color Chart | Photo album | IRC Chat |
|
| | ||
1 user currently in Super Mario World hacking:  labmaster |
| Acmlm's Board - I2 Archive - Super Mario World hacking - Implementing HDMA effects via palette hacks (code included) [ASM] |
 |  |  |
| Pages: 1 2 | Add to favorites | "RSS" Feed | Next newer thread | Next older thread |
| User | Post | ||
blackhole89 LOLSEALS Moderator of ROM hacking EmuNET IRC network admin Head GM of TwilightRO Level: 47  Posts: 67/971 EXP: 739208 For next: 26995 Since: 03-15-04 From: Dresden/Germany Since last post: 14 hours Last activity: 12 hours |
| ||
| @BMF: Now I've got a real problem. I am using HDMA chans #2 and #3 together for background gradients (as described above). #2 works on $2121 and #3 on $2122, so I basically edit the palette. It looks ok, but is heavily unstable (as described above). If you can help me, I'll mail you the ROM. GreetZ & thanks in advance, Blacky. |
|||
Atma X Bandit Level: 43  Posts: 87/801 EXP: 553639 For next: 11407 Since: 03-16-04 From: Derrière vous!!! Since last post: 43 days Last activity: 14 days |
| ||
| HyperHacker: I'm not really familliar with ASM or HDMA, so I was wondering (from your opinion) if this page I found is a good place (a good explination of how to hack HDMA) for me to get started with HDMA hacking. http://www.emulatronia.com/doctec/consolas/snes/dma.txt | |||
|
blackhole89 LOLSEALS Moderator of ROM hacking EmuNET IRC network admin Head GM of TwilightRO Level: 47 Posts: 71/971 EXP: 739208 For next: 26995 Since: 03-15-04 From: Dresden/Germany Since last post: 14 hours Last activity: 12 hours |
| ||
| It's quite good (used this one too), but this one's even better: http://www.geocities.com/Qwertie256/attic/snesemu/qsnesdoc.html#DMATransfers Can be also used as a reference. As for assembly, I recommend you to google around a bit. GreetZ Blacky. |
|||
|
Atma X Bandit Level: 43 Posts: 88/801 EXP: 553639 For next: 11407 Since: 03-16-04 From: Derrière vous!!! Since last post: 43 days Last activity: 14 days |
| ||
| So does HDMA hacking actually require any knowledge of ASM? If not, is there a program that can be used to help me to edit it. | |||
knuck Hinox Banned until 19-58-5815: trolling, flaming, spamming, being a general fucktard... Level: 62 Posts: 187/1818 EXP: 1894574 For next: 90112 Since: 03-15-04 Since last post: 14 hours Last activity: 9 hours |
| ||
Atma X:Originally posted by BMF54123 READ before you POST. |
|||
|
blackhole89 LOLSEALS Moderator of ROM hacking EmuNET IRC network admin Head GM of TwilightRO Level: 47 Posts: 73/971 EXP: 739208 For next: 26995 Since: 03-15-04 From: Dresden/Germany Since last post: 14 hours Last activity: 12 hours |
| ||
| There are two ways in general. (1) assembly. (2) the SNES9x cheat function (think ZSNES has kind of this too)  means, you won't come around asm when you wanna insert it in your hack. (2) can be used for some little experiments. If you wanna try, I'd post a list with about 15 game genie codes to be used at once. |
|||
|
Atma X Bandit Level: 43 Posts: 98/801 EXP: 553639 For next: 11407 Since: 03-16-04 From: Derrière vous!!! Since last post: 43 days Last activity: 14 days |
| ||
| Thanks Blackhole89, yes, please do post those. And also, can you tell me how hard it would be to make the HDMA Effect from the last bosses room in Act Raiser (the Background moving effect, it's the space looking BG)? I could send you a savestate that is at that part if you're not sure which BG and HDMA effect that I'm talking about. (edited by Atma X on 04-07-04 09:59 PM) |
|||
|
HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 318/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
| ||
I did?  Read the first post. You have to import the hdmamain.bin file. |
|||
|
Atma X Bandit Level: 43 Posts: 99/801 EXP: 553639 For next: 11407 Since: 03-16-04 From: Derrière vous!!! Since last post: 43 days Last activity: 14 days |
| ||
| Oh, you're right you didn't. You quoted on Blackhole89's question and I just wasn't looking at it right. Sorry about that. Edit: Where's BMF's "Palette-Based ASM System", I couldn't find a link for it. (edited by Atma X on 04-07-04 09:58 PM) (edited by Atma X on 04-07-04 11:47 PM) |
|||
|
ExKay Somebody set up us the bomb! Level: 50 Posts: 53/1114 EXP: 908268 For next: 39049 Since: 03-15-04 From: Hannover, Germany Since last post: 14 hours Last activity: 1 hour |
| ||
| Here is it:Palette ASM (edited by Hidden Mario on 04-08-04 06:27 AM) |
|||
mikepjr Ninji Level: 26  Posts: 57/242 EXP: 92006 For next: 10269 Since: 03-15-04 From: houston texas Since last post: 4 days Last activity: 1 hour |
| ||
| God i would love to be able to do this kind of stuff its sooooo panm cool. | |||
|
BMF98567 BLACK HAS BUILT A SILLY DICE-MAZE! GO! Current list of BURNING FURY >8( recipients: - Yiffy Kitten (x2) - Xkeeper Level: 53  Posts: 115/1261 EXP: 1094149 For next: 62970 Since: 03-15-04 From: Blobaria Special Move: Rising Meatloaf Backhand Combo Since last post: 21 hours Last activity: 1 hour |
| ||
| Just a quick little update: I've decided to rewrite my HDMA-handling system from scratch, due to stupid limitations and a couple of bugs blackhole89 brought up. The new version will be able to handle multiple HDMA channels, and you'll have full control over which register each channel writes to, and what write method is used (the current version forces mode 02). If all goes as planned, it should be available before next week. | |||
|
blackhole89 LOLSEALS Moderator of ROM hacking EmuNET IRC network admin Head GM of TwilightRO Level: 47 Posts: 88/971 EXP: 739208 For next: 26995 Since: 03-15-04 From: Dresden/Germany Since last post: 14 hours Last activity: 12 hours |
| ||
| At last. I think the old version's capital error was that it was hooked on that 7F8000 call, wasn't it? |
|||
|
BMF98567 BLACK HAS BUILT A SILLY DICE-MAZE! GO! Current list of BURNING FURY >8( recipients: - Yiffy Kitten (x2) - Xkeeper Level: 53 Posts: 116/1261 EXP: 1094149 For next: 62970 Since: 03-15-04 From: Blobaria Special Move: Rising Meatloaf Backhand Combo Since last post: 21 hours Last activity: 1 hour |
| ||
| I really don't think that was the main problem with it...as we both know, it just clears the area of RAM reserved for sprite data (which is later copied to actual OAM memory). Doing so at the wrong time shouldn't cause a crash, unless there are some freaky timing issues going on elsewhere in the hardware. Anyway, it doesn't really matter anymore, as I'm probably going to hook a different part of the code in the next release. |
|||
|
blackhole89 LOLSEALS Moderator of ROM hacking EmuNET IRC network admin Head GM of TwilightRO Level: 47 Posts: 89/971 EXP: 739208 For next: 26995 Since: 03-15-04 From: Dresden/Germany Since last post: 14 hours Last activity: 12 hours |
| ||
| Yep, that could be way better. Meanwhile, I'd better think about how I'll get rid of the old code the best way... | |||
|
BMF98567 BLACK HAS BUILT A SILLY DICE-MAZE! GO! Current list of BURNING FURY >8( recipients: - Yiffy Kitten (x2) - Xkeeper Level: 53 Posts: 117/1261 EXP: 1094149 For next: 62970 Since: 03-15-04 From: Blobaria Special Move: Rising Meatloaf Backhand Combo Since last post: 21 hours Last activity: 1 hour |
| ||
| Alright, new version is available here. There are some major changes this time around, so please read this carefully... First, you'll need to insert hdmamainv2.bin, just like you did hdmamain.bin. However, this one hooks a different part of the code (in the NMI routine, actually), so you'll need to restore the old JSL @ $2495 (should be 22 00 80 7F) and make the following change at $03AA: 22 xx xx xx EA EA EA EA (where xx xx xx is the 24-bit address of hdmamainv2.bin) In this version, there are 8 reserved sections of memory, one for each HDMA channel. Your palette-based code will write the HDMA parameters here. Each section is 8 bytes long, though the last 2 bytes are currently unused. They are set up as follows: HDMA 0: $7FFF00 HDMA 1: $7FFF08 HDMA 2: $7FFF10 HDMA 3: $7FFF18 HDMA 4: $7FFF20 HDMA 5: $7FFF28 HDMA 6: $7FFF30 HDMA 7: $7FFF38 Each set of parameters has the following format: CC PP RR AA AA AA xx xx CC: HDMA channel enable flag. This must correspond to the channel number of the memory section you're using: HDMA 1: 01 HDMA 2: 02 HDMA 3: 04 HDMA 4: 08 HDMA 5: 10 HDMA 6: 20 HDMA 7: 40 HDMA 8: 80 PP: HDMA parameters (register $43x0). RR: PPU register to be altered by this HDMA channel. AA AA AA: 24-bit address of your HDMA table. xx: Currently unused. Unused sections (those starting with a zero byte) will be bypassed, and the corresponding HDMA channel will be left untouched. NOTE: Although you can configure up to 8 channels simultaneously, please note that only channels 3 and 4 appear to be entirely unused. The rest are used for other HDMA effects and general-purpose DMA. Use them at your own risk! Now, a rundown of the new palette-activated hdmasubv2.bin example file: $01, $10: These 24-bit addresses point to one of the 8 memory sections described above. In the example file, they're set to channel 3 ($7FFF18). $0D: 16-bit address of HDMA parameters. $17: Size of HDMA table, minus 1. $19: 16-bit address of HDMA table. $1C: 24-bit RAM address HDMA table will be copied to. Set to $7FFF40 by default. $40: HDMA parameters, 6 bytes. This is copied to the memory section specified at $01 and $10. In the example file, it's set to channel 3, write mode 02 (write twice), PPU register $210F, table address $7FFF40. $46: HDMA table. This is copied to the RAM address specified at $1C. Okay, I'm very tired and this post is making less and less sense each time I read it. In summary, all you need to do to use an HDMA channel in this version is write the necessary parameters to the appropriate memory section (so, if you want to use channel 3, write the parameters to $7FFF18; for channel 4, $7FFF20; etc.). The code will take care of the rest for you. To activate HDMA channel 4, using write mode 02, PPU register $210F, and HDMA table at $7FFF80, write the following to $7FFF20-$7FFF26: 10 02 0F 80 FF 7F Please note that I haven't tried using multiple channels at once with this code, though it *should* work. If not, let me know. Any questions, please don't hesitate to ask. I can probably explain things better once I've had a good night's sleep...  |
|||
|
blackhole89 LOLSEALS Moderator of ROM hacking EmuNET IRC network admin Head GM of TwilightRO Level: 47 Posts: 92/971 EXP: 739208 For next: 26995 Since: 03-15-04 From: Dresden/Germany Since last post: 14 hours Last activity: 12 hours |
| ||
*pushes* Ah yes, back from deep underground.  Well then, I'll check this out. EDIT - This didn't fix my problem, but anyway, I found the (evident) reason for the crash: It occurs only when a palette change is done. Many of the SMW-intern palette changes don't care for vertical-blank periods and therefore can start changing the palette amidst of HDMA's work, interfering with the first HDMA table working on $2121 (palette index selector) in some way and causing a crash/pointer havoc/endless loop/whatsoever. I fear there's no real way to fix it, unless you can make all the palette changes wait for VBLANKs. GreetZ Blacky. (edited by blackhole89 on 04-24-04 06:27 AM) |
| Pages: 1 2 | Add to favorites | "RSS" Feed | Next newer thread | Next older thread |
| Acmlm's Board - I2 Archive - Super Mario World hacking - Implementing HDMA effects via palette hacks (code included) [ASM] |
| | |
