Moving data in assembly language

mov is the most frequently used instruction in assembly language.

•mov is probably one of the most frequently used instruction in assembly language

•Usage: movx source, destination

–Where x is the following

–l for a 32-bit long word value

–w for a 16-bit word value

–b for an 8-bit byte value

–movl = Moves a 32 bit word value

•Movl %eax, %ebx

–movw=moves a 16 bit word value

•Movw %ax, %bx

–movb=moves a 8 bit byte value

•Movb %ah, %bh