[mweeks@gsuad.gsu.edu@snowball ~]$ cat type.asm
; Assemble:	  nasm -f elf64 type.asm
; Link:		  gcc type.o -o type

; This is adapted for NASM. -MCW

    extern  printf      ; We will use this external function

    section .data       ; Data section, initialized variables

mystr:    db "%x", 10, 0   ; String format to use (decimal), followed by NL
mystr_size equ ($ - mystr)

bVal:     db 0
bVal_size equ ($ - bVal)

wVal:     dw 0
wVal_size equ ($ - wVal)

dVal:     dd 0
dVal_size equ ($ - dVal)

dVal2:    dd 0
dVal2_size equ ($ - dVal2)

mystr1:   db "My string size is %d", 10, 0
mystr2:   db "My bVal size is %d", 10, 0
mystr3:   db "My wVal size is %d", 10, 0
mystr4:   db "My dVal size is %d", 10, 0
mystr5:   db "My dVal2 size is %d", 10, 0

    section .text
    global main
main:
   xor rax, rax          ; A = 0

     ;mov rsi, type bVal  ; does not work
     ;mov rsi, lengthof mystr  ; does not work
     ;mov rsi, sizeof mystr  ; does not work
      mov rsi, mystr_size
   mov   rax, 0
   mov   rdi, mystr1   ; 
   call  printf

     mov rsi,bVal_size
   mov   rax, 0
   mov   rdi, mystr2   ; 
   call  printf

     mov rsi,wVal_size
   mov   rax, 0
   mov   rdi, mystr3   ; 
   call  printf

     mov rsi,dVal_size
   mov   rax, 0
   mov   rdi, mystr4   ; 
   call  printf

     mov rsi,dVal2_size
   mov   rax, 0
   mov   rdi, mystr5  ; 
   call  printf

   mov  rax, 0
   ret
[mweeks@gsuad.gsu.edu@snowball ~]$ nasm -f elf64 type.asm
[mweeks@gsuad.gsu.edu@snowball ~]$ gcc type.o -o type
[mweeks@gsuad.gsu.edu@snowball ~]$ ./type
My string size is 4
My bVal size is 1
My wVal size is 2
My dVal size is 4
My dVal2 size is 4
[mweeks@gsuad.gsu.edu@snowball ~]$