Instruction error while learning assembly

So I'm trying to learn some x86 assembly, I'm using NASM as my complier. I have this code that I'm working on, but when I compile, I get an error.

$ nasm -f bin -o myfirst.bin myfirst.asm
myfirst.as开发者_JAVA百科m:46: error: parser: instruction expected

Any idea whats wrong? Thanks!

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you typed 'mv' instead of 'mov' on line 46