ROM Hack Discussion Animal Crossing: New Horizons -- Reverse Engineering, Glitches, Bugs, etc. thread!

[Deleted User]

Sorry, I'm really noob and can't seem to understand. I tried to add furniture (example: diner set, the one that looks like the '50s)but it's all blue. How do I change furniture color? In general, I'm talking about those items where u can't customize with the crafting table

 

[DocKlokMan]

guys I have a question, can a Legit switch play local with a banned switch on the same version, but the legit one with the event "a" the banned one doesn't?

You can do this fine. My Switch lite 1.1.3 a connects just fine with my banned Switch 1.1.3.

 

[lennurs]

Sorry, I'm really noob and can't seem to understand. I tried to add furniture (example: diner set, the one that looks like the '50s)but it's all blue. How do I change furniture color? In general, I'm talking about those items where u can't customize with the crafting table

you cant. furniture color is some weird code compared to clothing and recipes. youre stuck with the code ya were given. i know theirs a code to change it but its complicated and last time i tried when i placed the item down it was bugging. so i wouldnt risk it. might mess up your files.

 

[Lionheartwolf]

What homebrew did you use ? Im on OS SX, and the cheat browser or searcher on it suck... So i need to know what pro use on this console..

Was using long time ago on PSP NitePR, CoderPR, TempAR plugins, was clearly better than all this shit on OS SX !

It depends on what I am trying to do. If Im just looking for addresses and pointers I use Noexs, and when I want to test cheats I mostly use SXOS.

To be fair they all have their problems, I just use whats available. Noexs is better for looking and editing memory live (you run it on a PC) which is infinitely better at spawning items into the game, but doesnt run activator cheats like walking through walls or moon jumping like SXOS. Noexs also doesnt like running cheats directly from HEAP addresses (mostly because it was designed to be a tool for dynamic addresses not static heap addresses.

SXOS is alright though, my only real gripe is I have to reboot the Switch back and forth between Atmosphere and SXOS because homebrew is all over the place and Noexs only runs on Atmosphere as far as I can tell.

Neither is very good at writing assembly code the big boys like to use IDAPro for that, but Im just a very tenacious small fish so I dont know a lot about that.

--------------------- MERGED ---------------------------

you cant. furniture color is some weird code compared to clothing and recipes. youre stuck with the code ya were given. i know theirs a code to change it but its complicated and last time i tried when i placed the item down it was bugging. so i wouldnt risk it. might mess up your files.

After all these pages you still havent figured it out...

Please dont share misinformation, this is why people constantly ask for the same thing over and over without realizing that they already have the answer.

Furniture color isnt some "weird code" is literally the address that immediately follows the Item ID address. It works exactly like all those frickin' DIY recipes. So much in fact that its literally the same cheat. Use the DIY cheat to spawn and alter the color of items. The only thing that changes is the values.

To explain it simply. DIY recipes are literally like different colors of furniture. Think of the wooden stool recipe as a blue DIY card, and a tire toy recipe as a red DIY card because thats exactly how the game sees it. The first line in the cheat is the item ID for the Recipe card itself, the next line is for the type of recipe.

Same with quantity, like pears. Using the same exact cheat the first line tells the game its pears, and the second line tells the game how many.

Furniture is STILL the same exact cheat. All three cheats ARE THE SAME CHEAT. This time the first line tells the game what item it is and the second line tells the game what color it is.

So just to recap. All item modifier cheats have two lines. The first is for the ID, the second is for the color/quantity/recipe type. MOST IMPORTANTLY all cheats for a specific inventory slot are the same addresses (read as: same cheat) just edit the second line to any value inbetween 1 and 5 usually (some have more some have less) and you can change the color of most items.

ffs...90+ pages and this is still a mystery to most...

 

[YoshiDude]

When i use tesla overlay it says no overlays, how do I fix that?

 

[juuza91]

Guys is it possible to import a save file with all my items to a newly created account?

 

[DestinyFeather]

I think it would be helpful to put in the original post the fact that all furniture colours/diy recipes are controlled by the item count if the item can't be stacked (stackables= wood, stone) AND THUS ANYTHING THAT CHANGES ITEM COUNT manual memory edits/cheat codes/manual hex editing/NHSE (when item count isn't broken like it is now) will modify the colour (if furniture)/recipe id(if recipe)/count(if stackable).

 

[rafpoop]

Anyone know what count number for each kind of bridge or incline?

I believe it's 8 each.

 

[DestinyFeather]

Has anyone noticed that inside the memory of the game there seems to be a weird area of flags that don't seem to be in NHSE at all? Like I saw there was this set of fruit tree flags and it was like

something something apple tree ... (Loads of spaces/00 iirc) on (weird hexadecimal character sequence)

They are named things that sound like NHSE flags but some of them don't seem to be in NHSE at all? Which makes me wonder how NHSE got the flag names? Spooky.

 

[Orel_Seb]

Anyone have the code for the royal crown please? ^^'

 

[Spritelight]

Be weary of using the terrain editor to change your maps. It seems to cause an odd issue in which the river mouths are messed up. I tried manually edittng each tile to be identical of a backup and I had and this created a weird river mouth with land teeth. To remedy this, I saved acres F1 and F5 and reloaded them after flattening my entire island.

yeah its buggy

 

[thecommondude]

Has anyone noticed that inside the memory of the game there seems to be a weird area of flags that don't seem to be in NHSE at all? Like I saw there was this set of fruit tree flags and it was like

something something apple tree ... (Loads of spaces/00 iirc) on (weird hexadecimal character sequence)

They are named things that sound like NHSE flags but some of them don't seem to be in NHSE at all? Which makes me wonder how NHSE got the flag names? Spooky.

We got it from the bcsvs that we dumped.

yeah its buggy

View attachment 202413

What exact terrain are you using? I can try and look into it later, but it shouldnt be buggy atall.

 

[stiggums]

does a cheat exist that would either make it rain/change weather or water flowers? or give them the watered state?

 

[Hinatax]

In ever since 1.1.3 i've been getting insanely slow loading times after I restored a save with JKSV. has anyone else experienced this?

 

[Spritelight]

What exact terrain are you using? I can try and look into it later, but it shouldnt be buggy atall.

I only pressed the "Reset all to Base (no Terrain)" button

 

[ACNHPlayer81818]

I'm not sure if I did everything correctly but I've been able to change my villagers any time I want using NHSE. I have no idea whether their inventory is correct or the building but that doesn't really bother me. I can change them if you want. I just need your save folder and a list of the villagers you want.

Sorry I was looking for people to add them to their town and get them into boxes so I could come adopt them cuz I don't hack

 

[alxrite]

@AnalogMan You know if there would be a way when you drop an item it drops 9 all around you instead?

 

[hentaikun]

I only pressed the "Reset all to Base (no Terrain)" button

Same. Having the same issue. Hopefully it gets fixed soon.

 

[SonicFan49]

So for those rare fish spawning codes... does anyone know which codes correspond with which fish? So far, testing out the first 6 codes, I see the following:

1. Dorado
2. Popeyed goldfish
3. Char
4. Stringfish
5. Gar
6. Arowana

Also, looking at the code, all the fish spawn codes are pretty much the same except for a couple of lines, but they don't seem to correspond to the fish in the pastebin list... I wonder how I could customize them to get the fish I'd like to spawn spawning.

I also would like to know this as well; I wanted to do this for the bugs

So, I went through all the fish spawn codes in game manually and got the following results:

1. Dorado
2. Popeyed goldfish
3. Char
4. Stringfish
5. Gar
6. Arowana
7. Arapaima
8. Saddled bichir
9. Ranchu goldfish
10. Betta
11. Ocean sunfish
12. Whale shark
13. Tuna
14. Blue marlin
15. Giant trevally
16. Mahi-mahi
17. Great white shark
18. Hammerhead shark
18. Saw shark (There were 2 18's in the original file by mistake, this is just for clarity)
19. Ray
20. Suckerfish
21. Oarfish
22. Barreleye
23. Coelacanth (still has to rain for it to spawn)
24. Ribbon eel
25. Moray eel

For anyone curious as to what fish @Traiver's spawn codes spawned. So I modified the titles for clarity.

[Fish doesn't spawn - Sea Bass]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000B52
300E0000 00000024
620F0000 00000000 00000000
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000BA2
300E0000 00000024
620F0000 00000000 00000000
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Dorado]
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000BF2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000C42
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Pop-Eyed Goldfish]
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000A12
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000A62
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Char]
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00001412
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00001462
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Stringfish]
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00001372
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 000013C2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Gar]
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00001692
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 000016E2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Arowana]
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000292
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 000002E2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Arapaima]
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000F12
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000F62
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Saddled Bichir]
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000512
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000562
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Ranchu Goldfish]
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 000001F2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000242
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Betta]
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00001192
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003E8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 000011E2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Ocean Sunfish]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00001412
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00001462
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Whale Shark]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000AB2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000B02
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Tuna]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00001372
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 000013C2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Blue Marlin]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000512
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000562
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Great Trevally]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 000015F2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00001642
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Mahi-Mahi]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 000008D2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000922
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Great White Shark]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000832
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000882
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Hammerhead Shark]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000A12
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000A62
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Saw Shark]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00001052
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 000010A2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Ray]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000472
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 000004C2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Suckerfish]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000792
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 000007E2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Oarfish]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00001552
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 000015A2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Barreleye]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000E72
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000EC2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Coelacanth]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000972
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 000009C2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Ribbon Eel]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 000010F2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00001142
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

[Fish spawns incr. + avail. anytime - Moray Eel]
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 000003D2
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000
580F0000 0347EA90
580F1000 000003F8
580F1000 00000010
580F1000 00000094
580F1000 00000008
780F0000 00000422
300E0000 00000024
620F0000 00000000 000000FF
780F0000 00000002
310E0000 20000000

From my own observations as far as customizing them for other fish goes... well, I got nothing. Only lines in each that are different contain values which do not correspond to the fish items in the pastebin, and the 2 lines of code in each code block are always 50 hex values apart. But that's about it.

 

[Mopquill]

You can do this fine. My Switch lite 1.1.3 a connects just fine with my banned Switch 1.1.3.

I was super off-base, thanks for correcting me! Edited my initial reply to them.

After all these pages you still havent figured it out...

Please dont share misinformation, this is why people constantly ask for the same thing over and over without realizing that they already have the answer.

Furniture color isnt some "weird code" is literally the address that immediately follows the Item ID address. It works exactly like all those frickin' DIY recipes. So much in fact that its literally the same cheat. Use the DIY cheat to spawn and alter the color of items. The only thing that changes is the values.

To explain it simply. DIY recipes are literally like different colors of furniture. Think of the wooden stool recipe as a blue DIY card, and a tire toy recipe as a red DIY card because thats exactly how the game sees it. The first line in the cheat is the item ID for the Recipe card itself, the next line is for the type of recipe.

Same with quantity, like pears. Using the same exact cheat the first line tells the game its pears, and the second line tells the game how many.

Furniture is STILL the same exact cheat. All three cheats ARE THE SAME CHEAT. This time the first line tells the game what item it is and the second line tells the game what color it is.

So just to recap. All item modifier cheats have two lines. The first is for the ID, the second is for the color/quantity/recipe type. MOST IMPORTANTLY all cheats for a specific inventory slot are the same addresses (read as: same cheat) just edit the second line to any value inbetween 1 and 5 usually (some have more some have less) and you can change the color of most items.

ffs...90+ pages and this is still a mystery to most...

I think it would be helpful to put in the original post the fact that all furniture colours/diy recipes are controlled by the item count if the item can't be stacked (stackables= wood, stone) AND THUS ANYTHING THAT CHANGES ITEM COUNT manual memory edits/cheat codes/manual hex editing/NHSE (when item count isn't broken like it is now) will modify the colour (if furniture)/recipe id(if recipe)/count(if stackable).

Yeah, I was thinking this information should go in the OP. I'm generally very busy during the week, but I've been trying to keep up and edit pertinent information into it.

Does anyone know where color ends up if the thing has durability? E.g. say Slot 1 is a tool, am I correct in guessing that the first two of the four bits is type (T), and the latter 2 are durability (D)? Like:

04100000 AC3B90C4 0000TTDD

If someone can confirm, I will edit it into the OP.

EDIT:
Also, am I correct that that first 4 is the byte size of the address value? Could one instead do:

08100000 AC3B90C0 0000XXXX 0000TTDD

Where XXXX = Item ID, TT = Typing, and DD == Durability/Quantity in order to specify everything at once?