# Demo program to show how to use Data types and MOVx instructions

.data

    HelloWorld:
        .ascii "Hello World!"

    ByteLocation:
        .byte 10

    Int32:
        .int 2
    Int16:
        .short 3
    Float:
        .float 10.23

    IntegerArray:
        .int 10,20,30,40,50


.bss
    .comm LargeBuffer, 10000

.text

    .globl _start

    _start:



        # 1. MOV immediate value into register

        movl $10, %eax

        # 2. MOV immediate value into memory location

        movw $50, Int16

        # 3. MOV data between registers

        movl %eax, %ebx


        # 4. MOV data from memory to register

        movl Int32, %eax

        # 5. MOV data from register to memory

        movb $3, %al
        movb %al, ByteLocation

        # 6. MOV data into an indexed memory location
        # Location is decided by BaseAddress(Offset, Index, DataSize)
        # Offset and Index must be registers, Datasize can be a numerical value

        movl $0, %ecx
        movl $2, %edi
        movl $22, IntegerArray(%ecx,%edi , 4)

        # 7. Indirect addressing using registers

        movl $Int32, %eax
        movl (%eax), %ebx

        movl $9, (%eax)



        # Exit syscall to exit the program

        movl $1, %eax
        movl $0, %ebx
        int $0x80