.data
	s:
	.byte 0

.type generate_str,@function
.global generate_str
#rdi->rsi->rdx->rcx

generate_str:
	MOV %rdi, s
	CMP $0, %rcx
	JE theSameLetter
	JMP changeLetter

theSameLetter:
	CMP $0, %rdx
	JE exit
	MOV %rsi, (%rdi)
	INC %rdi
	DEC %rdx
	JMP theSameLetter

changeLetter
	CMP $0, %rdx
	JE exit
	MOV %rsi, (%rdi)
	INC %rsi
	INC %rdi
	DEC %rdx
	JMP changeLetter

exit:
	MOV s, %rax
	RET