can i see assembly language program produced an an output of high level language program?

Question

I've learnt that compiler produces object code as an output or an assembly language program.

So can I see assembly language program produced as an output of high level language program?

Yes, you can, but the specific way to do that depends on the language /platform/IDE/OS/compiler you're using. You haven't tagged a specific language, would you give more details? — Stanislav Nedelchev, Mar 29 '15 at 07:40
Any C or C++ compiler has an option to produce an assembly listing. Any decent debugger lets you look at the machine code while you debug. Do keep in mind that this is a humbling experience, modern C compilers are rather good at producing fast code. In a way that doesn't always look very intuitive, you'd never do something like unrolling a loop by hand when you write your own assembly. — Hans Passant, Mar 29 '15 at 09:52
Here's a specific example: http://stackoverflow.com/q/28706850/120163 — Ira Baxter, Mar 29 '15 at 09:53

score 1 · Accepted Answer · answered Mar 29 '15 at 08:26

1

Since you didn't state which language you're using, I'll assume it's a native one (i.e. a language that translates into assembly, like C not bytecode, like java).
In that case, you can use objdump -D to produce the assembly output:

objdump -D [yourfile]

answered Mar 29 '15 at 08:26

Ishay Peled

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Does that work with Windows too? – Thorsten Staerk Mar 29 '15 at 09:52
I guess you can find an objdump version for Windows, but a better alternative will be using IDA. You can download it free (for non commercial use) here: https://out7.hex-rays.com/files/idafree50.exe – Ishay Peled Mar 29 '15 at 10:36

Thorsten Staerk · Answer 2 · 2015-03-29T10:33:14.407

I wrote a tutorial on this, http://www.staerk.de/thorsten/Assembler_Tutorial#translate_C_to_assembler has a C program

#include <stdio.h>

int main()
{
  int i=0x23;
  printf("hello world");
}

And translates it under Linux with the command

gcc -o hello.asm -S assembler_file.S

To assembler-code that looks like:

movl    $.LC0, %edi                      
movl    $0, %eax                         
call    printf

Note that this way is gcc-specific. The other way to obtain the assembler code is of course to build the executable program and then disassemble it with objdump -d. This will work with any compiler.

score -3 · Answer 3 · answered Mar 29 '15 at 09:46

Datei: Q4_ASEM.BAS Stand: 05.06.88 Microsoft Quick Basic 4.0

DEFINT A-Z

DECLARE FUNCTION Addieren (A AS INTEGER, B AS INTEGER)
' Assembler-Funktion --^

PRINT " QuickBASIC ruft Assembler"
INPUT " A = "; A
INPUT " B = "; B
Ergebnis = Addieren(A, B)
PRINT "Ergebnis ="; Ergebnis
'------------------------------
' Objektdatei mit BC erstellen
' C>bc a:q4_asem

Datei: BASIC.ASM Stand: 05.06.88 Microsoft Macro Assembler 5.0

.MODEL medium
     .CODE 
     PUBLIC Addieren

Addieren PROC

     push    bp
     mov     bp,sp
     mov     bx,[bp+8]
     mov     ax,[bx]
     mov     bx,[bp+6]
     mov     cx,[bx]
     shl     ax,1
     shl     ax,1
     add     ax,cx
     pop     bp
     ret     4

Addieren ENDP
     END
;---------------------------------------
; C>masm basic
; C>link
; Object Modules [.OBJ]: q4_asem+basic
;---------------------------------------

How is this related to the original post?? – Ishay Peled Mar 29 '15 at 10:33 — Ishay Peled, Mar 29 '15 at 10:33

can i see assembly language program produced an an output of high level language program?

3 Answers3