ASM Chapter 3

To leave a value uninitialized, use this symbol: __

In x86, a string is an array of ______.

• BYTEs

• WORDs

• DWORDs

• SWORDs

Which of these move instructions will work?

(The other 3 all have an error.)

• mov ax, bl

• mov 63, ax

• mov eax, B253h

• mov al, 72

How many bytes will this statement allocate in memory?

array1 DWORD 5 DUP(3)

Which category of instructions can modify the Instruction Pointer and affect program flow?

• Computational

• Control Transfer

• Input / Output

• Data Transfer

This type of operand cannot be a destination of any operation.

• immediate

• register

• memory

Which instruction is used to SIGN EXTEND a number?