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XMM Registers and Debugger

 
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Insecurely
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PostPosted: Fri Apr 15, 2016 2:09 am    Post subject: XMM Registers and Debugger Reply with quote

Hi, I'm wondering if there's a way to change XMM registers from a debugger. As you're able to change registers, why isn't XMM listed?
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Dark Byte
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PostPosted: Fri Apr 15, 2016 2:16 am    Post subject: Reply with quote

Kinda forgot to add.
And with xmm there are multiple different ways to interpret the data
I could let you input a 128 bit hexadecimal value, or show it as 4 float, or as 2 doubles, ...

but with lua you can access and change them (when it's paused on a breakpoint)
debug_getContext(true) will fill in the XMM# variables in lua
debug_setContext(true) will set it back in the broken thread

the XMM variables are byteTables

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Insecurely
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PostPosted: Fri Apr 15, 2016 2:24 am    Post subject: Reply with quote

Dark Byte wrote:
Kinda forgot to add.
And with xmm there are multiple different ways to interpret the data
I could let you input a 128 bit hexadecimal value, or show it as 4 float, or as 2 doubles, ...

but with lua you can access and change them (when it's paused on a breakpoint)
debug_getContext(true) will fill in the XMM# variables in lua
debug_setContext(true) will set it back in the broken thread

the XMM variables are byteTables


Ah, I see. Thanks for the quick reply!
Maybe something you can add in a future update perhaps?
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mgostIH
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PostPosted: Fri Apr 15, 2016 10:43 am    Post subject: Reply with quote

Dark Byte wrote:
Kinda forgot to add.
And with xmm there are multiple different ways to interpret the data
I could let you input a 128 bit hexadecimal value, or show it as 4 float, or as 2 doubles, ...


Why not both 3 modes at once, like ollydbg?

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