.data
	count:
	.long 0

	pos:
	.long 0

.text
.type fun, @function
.global fun


#rdi - a
#rsi - b
#rdx - pcs
#rcx - count
fun:
	MOVB $0, %r10 #licznik petli
	CMPB $1, %rsi
	JE sum
	CMPB $2, %rsi
	JE mul
loop2:
	JMP podst
after_podst:
	CMPB $1, %rsi
	JE sum_op
	CMPB $2, %rsi
	JE mul_op
after_op
	INC %r10
	CMPB $64, %r10
	JNE loop2
	CMPB $2, %rsi
	JE mul_op_2
	MOV %r9, %rsi
	RET
	MOV %rdi, %rbx

sum:
	MOVB $0, %r9 #suma
mul:
	MOV $1, %eax #mnozenie

#mul_op:
	#MOV %r10, %r12
	#INC %r12
	#IMUL %r12

sum_op:
	ADD (%rbx), %r9
	INC %rbx
	JMP after_op

mul_op_2:
	MOV %eax, %r9

not_zero_bit
	MOV count, %r11
	INC %r11
	MOV %r11, count
	MOV %r10, pos
	JMP after_podst

podst:
	CMPB $1, (%rbx)
	JE not_zero_bit
	JMP after_podst