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TwinShards
Newbie cheater
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Joined: 23 Jan 2023
Posts: 11
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 Posted: Mon Jan 23, 2023 3:11 pm Post subject: How to access third and 4th xmm register value in Assembly |
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Like the user in this forum post:
*can't post link yet as i'm a new user so: bypassing by removing the dots.
www cheatengine org/forum/viewtopic.php?t=617336&sid=95e947aa9bdde5adbe2d2dc1eb4b31e5
I was able to get my X value.
With the help of link above i was able to get the Y
But now i am basically facing the same brick wall.
Here's my current code:
[...]
newmem:
cmp [rdx+10],(int)1
jne originalcode
movaps xmm13,xmm0
movaps xmm14,xmm0
movaps xmm15,xmm0
movss [rdx-1000],xmm0 //X
shufps xmm13,xmm13,85
movss [rdx-FFC],xmm13 //Y
shufps xmm14,xmm14, // what number or hex do i put here to get the 3rd column? <-------
movss [rdx-FF8],xmm14 //Z
shufps xmm15,xmm15, // what number or hex do i put here to get the 4th column? <-------
movss [rdx-FF8],xmm15 //Facing Value
jmp originalcode
originalcode:
movups [rdx+60],xmm0
sub rdx,-80
[...]
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ParkourPenguin
I post too much
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Joined: 06 Jul 2014
Posts: 4719
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| Posted: Mon Jan 23, 2023 3:54 pm Post subject: |
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| TwinShards wrote: | ...
movss [rdx-FF8],xmm14 //Z
shufps xmm15,xmm15, // what number or hex do i put here to get the 4th column? <-------
movss [rdx-FF8],xmm15
... |
I'm guessing the last offset should be `-FF4` instead of `-FF8`
You don't need to do anything with shufps. All 4 floats are stored in memory in the same order as they appear in the register, so simply use movups to move all of them at once.
| Code: | newmem:
cmp [rdx+10],1
jne originalcode
movups [rdx-1000],xmm0 // stores X at [rdx-1000], Y at [rdx-FFC], Z at [rdx-FF8], and F at [rdx-FF4]
originalcode:
... |
_________________
I don't know where I'm going, but I'll figure it out when I get there. |
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TwinShards
Newbie cheater
![]() Reputation: 0
Joined: 23 Jan 2023
Posts: 11
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| Posted: Mon Jan 23, 2023 4:29 pm Post subject: |
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| ParkourPenguin wrote: | I'm guessing the last offset should be `-FF4` instead of `-FF8`
You don't need to do anything with shufps. All 4 floats are stored in memory in the same order as they appear in the register, so simply use movups to move all of them at once.
| Code: | newmem:
cmp [rdx+10],1
jne originalcode
movups [rdx-1000],xmm0 // stores X at [rdx-1000], Y at [rdx-FFC], Z at [rdx-FF8], and F at [rdx-FF4]
originalcode:
... |
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"I'm guessing the last offset should be `-FF4` instead of `-FF8`" yes i just made a small mistake while writing this post.
Thanks for the help! I'm dumb. I don't know why i was trying to use "ss" instead of "ups" like the original code.
Have a nice day!
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