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How do you print the values of entire XMM register?

 
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H4x0rBattie
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PostPosted: Sun Jan 22, 2017 11:17 am    Post subject: How do you print the values of entire XMM register? Reply with quote
Hi. I already found http://forum.cheatengine.org/viewtopic.php?t=601527&start=0&postdays=0&postorder=asc&highlight=

xmm2:49283.99 - 49283.99 - 49283.99 - 49283.99

How do I print out all the (4) four values out of XMM2 with LUA engine?
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Dark Byte
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PostPosted: Sun Jan 22, 2017 12:05 pm    Post subject: Reply with quote
v1=byteTableToFloat([XMM2[1], XMM2[2], XMM2[3], XMM2[4]])

v2=byteTableToFloat([XMM2[5], XMM2[6], XMM2[7], XMM2[8]])

v3=byteTableToFloat([XMM2[9], XMM2[10], XMM2[11], XMM2[12]])

v4=byteTableToFloat([XMM2[13], XMM2[14], XMM2[15], XMM2[16]])
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ParkourPenguin
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PostPosted: Sun Jan 22, 2017 12:18 pm    Post subject: Reply with quote
Using debug_getXMMPointer:
Code:
debug_setBreakpoint(address, 1, bptExecute, function()
  local xmm2_p = debug_getXMMPointer(2)
  local float1 = readFloatLocal(xmm2_p)
  local float2 = readFloatLocal(xmm2_p+4)
  local float3 = readFloatLocal(xmm2_p+8)
  local float4 = readFloatLocal(xmm2_p+12)

  print(string.format('1: %f\r\n2: %f\r\n3: %f\r\n4: %f', float1, float2, float3, float4))

  debug_continueFromBreakpoint(co_run)
  return 0
end)

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H4x0rBattie
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PostPosted: Sun Jan 22, 2017 12:55 pm    Post subject: Reply with quote
Dark Byte wrote:
v1=byteTableToFloat([XMM2[1], XMM2[2], XMM2[3], XMM2[4]])

v2=byteTableToFloat([XMM2[5], XMM2[6], XMM2[7], XMM2[8]])

v3=byteTableToFloat([XMM2[9], XMM2[10], XMM2[11], XMM2[12]])

v4=byteTableToFloat([XMM2[13], XMM2[14], XMM2[15], XMM2[16]])


Thanks. That makes sense. A float is 4 bytes Smile If you would have named it as "byteArrayToFloat" I would probably have figured this on my own. Haha.

ParkourPenguin wrote:
Using debug_getXMMPointer:
Code:
debug_setBreakpoint(address, 1, bptExecute, function()
  local xmm2_p = debug_getXMMPointer(2)
  local float1 = readFloatLocal(xmm2_p)
  local float2 = readFloatLocal(xmm2_p+4)
  local float3 = readFloatLocal(xmm2_p+8)
  local float4 = readFloatLocal(xmm2_p+12)

  print(string.format('1: %f\r\n2: %f\r\n3: %f\r\n4: %f', float1, float2, float3, float4))

  debug_continueFromBreakpoint(co_run)
  return 0
end)


Thanks for the fast reply. This is exactly what I need in order to solve one mathematical issue.
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