Difference between SHL and SAL in 80x86

Question

I have learned how to work with 80x86 assembler, so in bit-wise shift operation, I faced a problem with SAL and SHL usage. I means the difference between lines of code as fo

Answer 1

actually both are same ..! but SAL Used when numeric multiplication is intended EXAMPLE SAL:

Multiply AX by 8
MOV CL, 3
SAL AX, CL

BOTH ARE MOSTLY WORK SAME AND HAVE SAME MACHINE CODE