Transfer gold between Horde/Alliance without the 15% cut

[benjamin66]

let say you have one horde account and one alliance account
the Neutral AH is the only way to transfer money between them and the 15% cut is annoying

now when you set the item price to 28634g
the fees will only be 13s27c



why?
One of my friend familiar with programme explain to me by this:

(well I dont understand this shit too I just know it works and copy and paste it here)



the model answer should be: 28633g11s54c



because 286331154 * 15 = 4294967310

change it to hexadecimal: 10000000E
it become 9 digits, for a 32-bit system the 9digit will overflow

and the fees will be 0 T 14/100 = 0

and in the 5%AH you set the price 85899g34s60c will have the same effect






so when you set the price to 28634g in a neutral AH the fees should be 4295g10s
but because the limit of the fees is 4294g96s72.96c, the fees will be overflow and become 13s27c







sorry for my sucking english
the exploits is quite useless if you dont have a horde and alliance account



but the "overflow concept" maybe useful in another way so I would like to share it out




EDIT: quote from Killerpet who explain better than me

Assuming the wow arithmetic goes like this:

AP = Auction price

Auctioneer_Cut = AP * 15 / 100 (I.E. 15%) then this is true

if its like:

Auctioneer_Cut = AP / 100 * 15 (Same % but no overflow) then it is false

-------------------------------
Proof:
Auctioneer_Cut = AP * 15 / 100

(splitting it up as gold silver copper)
start with
28634g 00s 00c (or 1111 33A0 hex)

First multiply the number by 15
28634g 00s 00c * 15 = 429510g 00s 00c (or 1 0002 0660 hex)

now assuming op is correct and there is an overflow this will change to 0002 0660 hex (or 13g 27s 04c)

Now divide it by 100
13g 27s 04c / 100 = 0g 13s 27c

Fee = 13s 27c

-------------------------------
Alternate solution:
Auctioneer_Cut = AP / 100 * 15

start with
28634g 00s 00c (or 1111 33A0 hex)

First divide it by 100
286g 34s 00c (or 002B B128 hex)

Here there is no overflow

Now when you multiply it by 15
286g 34s 00c * 15 = 4295g 10s 00c

--------------------------------
If this works then you would need an auction of 42951g 00s 00c for roughly the same result on the normal AH

Proof:
Auctioneer_Cut = AP * 10 / 100

(splitting it up as gold silver copper)
start with
42951g 00s 00c (or 1999 CD70 hex)

First multiply the number by 10
42951g 00s 00c * 10 = 429510g 00s 00c (or 1 0002 0660 hex)

now assuming op is correct and there is an overflow this will change to 0002 0660 hex (or 13g 27s 04c)

Now divide it by 100
13g 27s 04c / 100 = 0g 13s 27c

Fee = 13s 27c

-------------------------------
Note: if the poster above me is correct and the limit is 214748g 36s 47c (or 7FFF FFFF hex) then this means that the wow gold value is signed (the 1st bit tells you if it is a positive or negative number), however the above theory should still hold (assuming it gets multiplied first)

p.s. to benjamin66 - Plz quote this theory in your post above so people understand why it works. your English is bad but your idea is correct

[Rosulm]

Any technical people understand/can vouch for him? I honestly do not want to test ah'ing that much g or risk losing 4300g

[rosty]

i don't think this will ever been confirmed hihi

[Kartio]

I don't understand anything about that math part but if it works, sweet.
Someone confirm?

[Cheatertroll]

Who and the hell has 28000 gold to transfer anyway?? I can't wait to get enough gold to try it out. Thanks for the overflow thing-a-majig.

[bisbolo]

Well I didn't understand much, but I noticed that

the model answer should be: 28633g11s54c



because 286331154 * 15 = 4294967310

Shouidn't you make 286331154 /100 *15 to have 15% fee?
The result is pretty similar but with 1 less number: 42949673,1.
You're missing the 0 and I dunno if the system counts that 1..

Edit: your result is right, it's 10000000E
But mine (without the 1) is 28F5C29, with the 1 is 1999999B

I dunno how it works, just trying to understand :P


Meh.

[Nastya]

As much as I would love to know if this is working, I won't give any rep for it until it has been confirmed. If it ever gets confirmed, you can count on my rep.

[coldmrn]

Yeah i still need double the gold :P?

[SwedishGuy]

I think he meant there is a limit to the fee, and if you put an item for 30,000g on the ah you cross that limit and there will be no fee except the deposit fee.

[blackfang500]

Interesting concept, but I honestly do not think this will work.

[junkkiller]

i know for fact that i did put over this amount in ah and did pay precise fee so unless this thing works only on exact amount he specified its not correct
p.s i know that asking for rep is not good but if i get few reps for it i am willing to make an auction and show the results (ya i want some rep for risking 2k gold on ally-ally ah or over 6 on neutral ah)

[Barnzy]

Didn't work for me...?

[Nastya]

i know for fact that i did put over this amount in ah and did pay precise fee so unless this thing works only on exact amount he specified its not correct
p.s i know that asking for rep is not good but if i get few reps for it i am willing to make an auction and show the results (ya i want some rep for risking 2k gold on ally-ally ah or over 6 on neutral ah)

Well if you can confirm this works or not, i'll be glad to rep you.

[UnoriginalGuy22]

WoW has an absolute gold limit of 214748 gold, 36 silver and 47 copper. So this will not work and it will not overflow. Nice try though.

Also:
286331154 * 15 = 4294967310

Is wrong, it is 15% e.g.
286331154 * .15 = 42949673.1

Or rounded (as WoW does) to 42949673. As 42,949,673 is far smaller than 2,147,483,647 it won't overflow or break WoW.

[Killerpet]

Assuming the wow arithmetic goes like this:

AP = Auction price

Auctioneer_Cut = AP * 15 / 100 (I.E. 15%) then this is true

if its like:

Auctioneer_Cut = AP / 100 * 15 (Same % but no overflow) then it is false

-------------------------------
Proof:
Auctioneer_Cut = AP * 15 / 100

(splitting it up as gold silver copper)
start with
28634g 00s 00c (or 1111 33A0 hex)

First multiply the number by 15
28634g 00s 00c * 15 = 429510g 00s 00c (or 1 0002 0660 hex)

now assuming op is correct and there is an overflow this will change to 0002 0660 hex (or 13g 27s 04c)

Now divide it by 100
13g 27s 04c / 100 = 0g 13s 27c

Fee = 13s 27c

-------------------------------
Alternate solution:
Auctioneer_Cut = AP / 100 * 15

start with
28634g 00s 00c (or 1111 33A0 hex)

First divide it by 100
286g 34s 00c (or 002B B128 hex)

Here there is no overflow

Now when you multiply it by 15
286g 34s 00c * 15 = 4295g 10s 00c

--------------------------------
If this works then you would need an auction of 42951g 00s 00c for roughly the same result on the normal AH

Proof:
Auctioneer_Cut = AP * 10 / 100

(splitting it up as gold silver copper)
start with
42951g 00s 00c (or 1999 CD70 hex)

First multiply the number by 10
42951g 00s 00c * 10 = 429510g 00s 00c (or 1 0002 0660 hex)

now assuming op is correct and there is an overflow this will change to 0002 0660 hex (or 13g 27s 04c)

Now divide it by 100
13g 27s 04c / 100 = 0g 13s 27c

Fee = 13s 27c

-------------------------------
Note: if the poster above me is correct and the limit is 214748g 36s 47c (or 7FFF FFFF hex) then this means that the wow gold value is signed (the 1st bit tells you if it is a positive or negative number), however the above theory should still hold (assuming it gets multiplied first)

p.s. to benjamin66 - Plz quote this theory in your post above so people understand why it works. your English is bad but your idea is correct