Help me defuse phase$\_4$

Dump of assembler code for function phase$\_4$:

$0$x: push $\%$edi

$0$x: push $\%$esi

$0$x$5655761$a : push $\%$ebx

$0$x$5655761$b : mov $0$x$10(\%$esp$),\%$edi

$0$x$5655761$f : sub $$0$xc$,\%$esp

$0$x: push $\%$edi

$0$x: call $0$x$56557$a$17$

$0$x: add $$0$x$1,\%$eax

$0$x$5655762$b : mov $\%$eax,$(\%$esp$)$

$0$x$5655762$e : call $0$xf$7$dee$8$b$0$

$0$x: mov $\%$eax,$\%$esi

$0$x: add $$0$x$10,\%$esp

$0$x: testb $$0$xdf$,(\%$edi$)$

$0$x$5655763$b : je $0$x$56557697$

$0$x$5655763$d : mov $\%$edi,$\%$ebx

$0$x$5655763$f : add $$0$x$1,\%$ebx

$0$x: testb $$0$xdf$,(\%$ebx$)$

$0$x: jne $0$x$5655763$f

$0$x: cmp $\%$ebx,$\%$edi

$0$x: je $0$x$56557699$

$0$x$5655764$b : mov $\%$esi,$\%$edx

$0$x$5655764$d : mov $\%$ebx,$\%$eax

$0$x$5655764$f : sub $$0$x$1,\%$eax

$0$x: movzbl $(\%$eax$),\%$ecx

$0$x: mov $\%$cl$,(\%$edx$)$

$0$x: add $$0$x$1,\%$edx

$0$x$5655765$a : cmp $\%$eax,$\%$edi

$0$x$5655765$c : jne $0$x$5655764$f

$0$x$5655765$e : mov $\%$ebx,$\%$edx

$0$x: sub $\%$eax,$\%$edx

$0$x: lea $(\%$esi,$\%$edx,$1),\%$eax

$0$x: movzbl $(\%$ebx$),\%$edx

$0$x: test $\%$dl$,\%$dl

$0$x$5655766$a : je $0$x$5655767$b

$0$x$5655766$c : mov $\%$dl$,(\%$eax$)$

$0$x$5655766$e : add $$0$x$1,\%$eax

$0$x: add $$0$x$1,\%$ebx

$0$x: movzbl $(\%$ebx$),\%$edx

$0$x: test $\%$dl$,\%$dl

$0$x: jne $0$x$5655766$c

$0$x$5655767$b : movb $$0$x$0,(\%$eax$)$

$0$x$5655767$e : sub $$0$x$8,\%$esp

$0$x: push $\%$esi

$0$x: push $$0$x$565591$f$8$

$0$x: call $0$x$56557$a$35$

$=>0$x$5655768$c : add $$0$x$10,\%$esp

$0$x$5655768$f : test $\%$eax,$\%$eax

$0$x: jne $0$x$565576$a$0$

$0$x: pop $\%$ebx

$0$x: pop $\%$esi

$0$x: pop $\%$edi

$0$x: ret

$0$x: mov $\%$edi,$\%$ebx

$0$x: call $0$x$56557$c$7$d

$0$x$5655769$e : jmp $0$x$5655764$b

$0$x$565576$a: call $0$x$56557$c$7$d

$0$x$565576$a: jmp $0$x$56557693$

End of assembler dump.

$```$