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%macro print 2
mov rax,1
mov rdi,1
mov rsi,%1
mov rdx,%2
syscall
%endmacro
 
%macro read 2
mov rax,0
mov rdi,0
mov rsi,%1
mov rdx,%2
syscall
%endmacro
 
 
section .data
msg1 db " operation to performed "
msglen1 equ $-msg1
 
msg2 db "  MENU "
     db "1.bcd to hex",0ah
     db "2. hex to bcd",0ah
     db "3.exit ",0ah
     db "enter the choice  "
 
msglen2 equ $-msg2
 
section .bss
choice resb 2
 
section .text
global _start:
_start:
 
print msg1,msglen1
print msg2,msglen2
read  choice,2
 
 

prog.s: Assembler messages:
prog.s:2: Error: junk at end of line, first unrecognized character is `%'
prog.s:3: Error: too many memory references for `mov'
prog.s:4: Error: too many memory references for `mov'
prog.s:5: Error: bad register name `%1'
prog.s:6: Error: bad register name `%2'
prog.s:8: Error: junk at end of line, first unrecognized character is `%'
prog.s:10: Error: junk at end of line, first unrecognized character is `%'
prog.s:11: Error: too many memory references for `mov'
prog.s:12: Error: too many memory references for `mov'
prog.s:13: Error: bad register name `%1'
prog.s:14: Error: bad register name `%2'
prog.s:16: Error: junk at end of line, first unrecognized character is `%'
prog.s:19: Error: no such instruction: `section .data'
prog.s:20: Error: no such instruction: `msg1 db " operation to performed "'
prog.s:21: Error: no such instruction: `msglen1 equ $-msg1'
prog.s:23: Error: no such instruction: `msg2 db "  MENU "'
prog.s:24: Error: no such instruction: `db "1.bcd to hex",0ah'
prog.s:25: Error: no such instruction: `db "2. hex to bcd",0ah'
prog.s:26: Error: no such instruction: `db "3.exit ",0ah'
prog.s:27: Error: no such instruction: `db "enter the choice  "'
prog.s:29: Error: no such instruction: `msglen2 equ $-msg2'
prog.s:31: Error: no such instruction: `section .bss'
prog.s:32: Error: no such instruction: `choice resb 2'
prog.s:34: Error: no such instruction: `section .text'
prog.s:35: Error: no such instruction: `global _start:'
prog.s:38: Error: no such instruction: `print msg1,msglen1'
prog.s:39: Error: no such instruction: `print msg2,msglen2'
prog.s:40: Error: no such instruction: `read choice,2'

Standard output is empty