The go assembly language is a bit idiosyncratic and didn't include all instructions, which led to https://golang.org/doc/asm#unsupported_opcodes https://golang.

The go assembly language is a bit idiosyncratic and didn't include all instructions, which led to https://golang.org/doc/asm#unsupported_opcodes https://golang.org/doc/asm#unsupported_opcodes . The standard library is actually chock full of specialized assembly implementations of various algorithms. Well worth a look even if you don't use Go. Here's an example of aes encryption which is a relatively recent instruction: https://golang.org/src/crypto/aes/asm_amd64.s https://golang.org/src/crypto/aes/asm_amd64.s