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## $ cc -ggdb3 -m32 -Og reverse.cool.s -o reverse.cool | |
.section .text | |
.type main, @function | |
.globl main | |
main: | |
pushl %ebp | |
movl %esp,%ebp | |
subl $0x10,%esp | |
movl %esp,-0x10(%ebp) | |
movl $message,%esi | |
movl %esp,%edi | |
1: | |
subl $0x4,%esp | |
movl %esp,%edi | |
xorl %ebx,%ebx | |
movl %ebx,(%edi) | |
xorl %ebx,%ebx | |
movb (%esi),%bl | |
cmpl $0xa,%ebx | |
je 2f | |
cmpl $0x0,%ebx | |
je 2f | |
movl %ebx,(%edi) | |
incl %esi | |
jmp 1b | |
2: | |
movl $message,%edi | |
1: | |
addl $0x4,%esp | |
movl %esp,%esi | |
movl -0x10(%ebp),%ebx | |
cmpl %ebx,%esi | |
je 2f | |
xorl %ebx,%ebx | |
movb (%esi),%bl | |
movb %ebx,(%edi) | |
incl %edi | |
jmp 1b | |
2: | |
subl $0x8,%esp | |
pushl $message | |
pushl $message_format | |
call printf | |
addl $0x10,%esp | |
leave | |
ret | |
.section .data | |
message: | |
.ascii "Pwn3d\0" | |
message_format: | |
.ascii "%s\n\0" |
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