Supported:
* Instruction sets: SSE, SSE2, SSE3, SSSE3, SSE4a, SSE4.1, SSE4.2
* 8-bit/16-bit/32-bit/64-int integer code
* 64-bit (long mode) code
* AMD64 System V Application Binary Interface (ABI)
* AT&T assembler code syntax

Unsupported:
* Instruction sets: x87, MMX, privileged instructions
* Instructions using segment registers
* Indirect branches
* Position-independent code (PIC)
* 32-bit mode code
* Win32/Windows-64 ABI
* DWARF EH_frame: support for code requiring structured exception handling
* Intel/Microsoft assembler code syntax

--