Megathread: Issues with CPUs without SSSE3 support

Can someone explain me , what is wrong?

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Fatal error
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Unhandled Win32 exception 0xC000001D.
Exception address: 000000000027cd8b.
Instruction address: 000000000027cd8b.
Function address: 000000000027cc80 (base+0x26cc80).
Module name: 'rpcs3.exe'.
Module base: 0000000000010000.
RPCS3 image base: 0000000000010000.

Illegal instruction exception occured.
Note that your CPU must support SSSE3 extension.

HOW TO REPORT ERRORS: Check the FAQ, README, other sources.
Please, don't send incorrect reports. Thanks for understanding.
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