ASM Help

[MrJ]

how do you add var in ASM. I currently not understanding what the kip irvine book is saying . Is it similar to basic c++ where i set
int for the value
int for the total
cout statements to display on the console ?

[megatron 0]

Assembly is a bit different to C++;

I use a label and the db keyword to define "variables"

jmp main;

VarNameHere:
db "String to print", 0; Null terminatinion with null

main:
mov ax, VarNameHere; A register will be dedicated to storing the first byte in the string
mov bx, somecommandbyte; A second register will be used by the OS to say what you want to do, in our case print whatever is in AX to stdout until null termination
int 80h; Call kernel/OS to print string

The above code may be different if you are using GAS syntax, I haven't touched assembly in a while!

[lordseanington]

A lable is just an address of memory/the program. So when you lable the object as shown above, any future use of that object can be reffered to by the label "VarNameHere"