1. Each of the following lines of code generates an error message when we invoke the assembler. Explain what is wrong with each line.

1 movb $0xF, (%ql)

2 movl %eax,$0xFA

3 movl %eax,%bx

4 movb %ah,%sh

5 movw 4(%esp), (%ebx)

2. In one sentence, write what operation each instruction performs?

I) movl %eax,(%edx)

II) movl 12(%ebp), %ecx

III) addl %eax, %edx

IV) sall %eax, %ebx

V) incl %edx

3. Suppose register %eax holds the value of variable named a and %ecx holds the value of variable named b. Fill in the table below with formulas indicating the value that will be stored in register %edx for each of the given assembly code instructions:

Instruction	Result
leal 4(%eax), %edx
leal (%ecx,%eax), %edx
leal 3(%ecx,%eax,2), %edx