x86 brainfuck interpreter

brainfuck.s

        /* brainfuck.s */
        .intel_syntax noprefix
        .globl _start

_start:
        lea edx, mem
        lea esi, bfcode

loop:
        mov al, [esi]
        cmp al, '>'
        je inc
        cmp al, '<'
        je dec
        cmp al, '+'
        je plus
        cmp al, '-'
        je minus
        cmp al, '.'
        je write
        cmp al, ','
        je read
        cmp al, '['
        je left
        cmp al, ']'
        je right
        jmp exit

inc:
        inc edx
        jmp next

dec:
        dec edx
        jmp next

plus:
        incb [edx]
        jmp next

minus:
        decb [edx]
        jmp next

write:
        pushad
        mov ecx, edx
        mov edx, 1
        mov ebx, 1
        mov eax, 4
        int 0x80
        popad
        jmp next

read:
        pushad
        mov ecx, edx
        mov edx, 1
        mov ebx, 0
        mov eax, 3
        int 0x80
        popad
        jmp next

left:
        push esi
        jmp next

right:
        mov al, [edx]
        test al, al
        jz rightexit
        mov esi, [esp]
        jmp next
rightexit:
        pop eax
        jmp next

next:
        inc esi
        jmp loop

exit:
        xor ebx, ebx
        mov eax, 1
        int 0x80

.data

        .fill 64
mem:
        .fill 64

bfcode:
        .asciz "++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++."

result.txt

$ gcc -nostdlib brainfuck.s

$ ./a.out
Hello World!

$ objdump -s a.out

a.out:     file format elf32-i386

Contents of section .note.gnu.build-id:
 8048094 04000000 14000000 03000000 474e5500  ............GNU.
 80480a4 f930bf0a 585901aa 1ae6d8b7 6487120d  .0..XY......d...
 80480b4 ced4512f                             ..Q/
Contents of section .text:
 80480b8 8d158191 04088d35 c1910408 8a063c3e  .......5......<>
 80480c8 741e3c3c 741d3c2b 741c3c2d 741c3c2e  t.<<t.<+t.<-t.<.
 80480d8 741c3c2c 742f3c5b 74423c5d 7441eb50  t.<,t/<[tB<]tA.P
 80480e8 42eb4a4a eb47fe02 eb43fe0a eb3f6089  B.JJ.G...C...?`.
 80480f8 d1ba0100 0000bb01 000000b8 04000000  ................
 8048108 cd8061eb 286089d1 ba010000 00bb0000  ..a.(`..........
 8048118 0000b803 000000cd 8061eb11 56eb0e8a  .........a..V...
 8048128 0284c074 058b3424 eb0358eb 0046eb8c  ...t..4$..X..F..
 8048138 31dbb801 000000cd 80                 1........
Contents of section .data:
 8049141 00000000 00000000 00000000 00000000  ................
 8049151 00000000 00000000 00000000 00000000  ................
 8049161 00000000 00000000 00000000 00000000  ................
 8049171 00000000 00000000 00000000 00000000  ................
 8049181 00000000 00000000 00000000 00000000  ................
 8049191 00000000 00000000 00000000 00000000  ................
 80491a1 00000000 00000000 00000000 00000000  ................
 80491b1 00000000 00000000 00000000 00000000  ................
 80491c1 2b2b2b2b 2b2b2b2b 5b3e2b2b 2b2b5b3e  ++++++++[>++++[>
 80491d1 2b2b3e2b 2b2b3e2b 2b2b3e2b 3c3c3c3c  ++>+++>+++>+<<<<
 80491e1 2d5d3e2b 3e2b3e2d 3e3e2b5b 3c5d3c2d  -]>+>+>->>+[<]<-
 80491f1 5d3e3e2e 3e2d2d2d 2e2b2b2b 2b2b2b2b  ]>>.>---.+++++++
 8049201 2e2e2b2b 2b2e3e3e 2e3c2d2e 3c2e2b2b  ..+++.>>.<-.<.++
 8049211 2b2e2d2d 2d2d2d2d 2e2d2d2d 2d2d2d2d  +.------.-------
 8049221 2d2e3e3e 2b2e3e2b 2b2e00             -.>>+.>++..