diff --git a/main.py b/main.py
new file mode 100644
index 0000000..79e1a46
--- /dev/null
+++ b/main.py
@@ -0,0 +1,26 @@
+import random
+
+number_of_bits = input('Type the number of bits\n')
+
+instruction = ''
+
+rand = random.Random(100)
+rand.seed(100)
+
+bits = ['0','1']
+
+bit_instruction = []
+i = 0
+
+while i < number_of_bits:
+    
+    instruction += bits[rand.randint() % 2]
+    i += 1
+
+intervals_list = input('Type intervals\n').split(" ")
+
+intervals = list(map(eval, intervals_list))
+
+for interval in intervals:
+
+    bit_instruction.append(instruction[31-interval[0], 31-(interval[1]+1)])
\ No newline at end of file
diff --git a/src/os/kernel.v b/src/os/kernel.v
index 999e203..749f715 100644
--- a/src/os/kernel.v
+++ b/src/os/kernel.v
@@ -3,7 +3,7 @@ module main
 import vm
 import readline
 
-mut kernel := none
+__global kernel = none
 
 fn start_kernel(){
 	kernel = Kernel{}
diff --git a/src/os/syscall.v b/src/os/syscall.v
index a9b3f0d..83544bd 100644
--- a/src/os/syscall.v
+++ b/src/os/syscall.v
@@ -2,7 +2,7 @@ module main
 
 import kernel as os
 
-cmds := {
+syscalls := {
 	'EXIT'  : 0
 	'READ'  : 1
 	'WRITE' : 2
diff --git a/src/vm/assembler.v b/src/vm/assembler.v
index 5bee172..3790034 100644
--- a/src/vm/assembler.v
+++ b/src/vm/assembler.v
@@ -1,4 +1,68 @@
+import kernel as os
+
+
+__global mneumonics = {
+
+	// Menumonic : [TYPE | ( OPCODE, FUNC3, (FUNC7 | IMM) )]
+	'ADD'   : [0x33, 0x0],
+	'SUB'   : [0x33, 0x0],
+	'XOR'   : [0x33, 0x4],
+	'OR'    : [0x33, 0x6],
+	'AND'   : [0x33, 0x7],
+	'SLL'   : [0x33, 0x1],
+	'SRL'   : [0x33, 0x5],
+	'SRA'   : [0x33, 0x5],
+	'SLT'   : [0x33, 0x2],
+	'SLTU'  : [0x33, 0x3],
+	'ADDI'  : [0x13, 0x0],
+	'XORI'  : [0x13, 0x4],
+	'ORI'   : [0x33, 0x6],
+	'ANDI'  : [0x13, 0x7],
+	'SLLI'  : [0x13, 0x1],
+	'SRLI'  : [0x33, 0x5],
+	'SRAI'  : [0x13, 0x5],
+	'SLTI'  : [0x13, 0x2],
+	'SLTIU' : [0x13, 0x3],
+	'LB'    : [0x03, 0x0],
+	'LH'    : [0x03, 0x1],
+	'LW'    : [0x03, 0x2],
+	'LBU'   : [0x03, 0x4],
+	'LHU'   : [0x03, 0x5],
+	'SB'    : [0x23, 0x0],
+	'SH'    : [0x23, 0x1],
+	'SW'    : [0x23, 0x2],
+	'BEQ'   : [0x63, 0x0],
+	'BNE'   : [0x63, 0x1],
+	'BLT'   : [0x63, 0x4],
+	'BGE'   : [0x63, 0x5],
+	'BLTU'  : [0x63, 0x6],
+	'BGEU'  : [0x63, 0x7],
+	'JAL'   : [0x6F, 0x0],
+	'JALR'  : [0x67, 0x0],
+	'LUI'   : [0x37],
+	'AUIPC' : [0x17],
+	'ECALL' : [0x73, 0x0, 0x0],
+	'EBREAK': [0x73, 0x0, 0x1],
+}
+
+__global registers = {
+
+}
+
+fn bytecode(asm_buffer [u8])
+{
+	mut asm_instruction := asm_buffer.pop()
+
+	mut mneumonic := asm_instruction.split(' ')[0].to_upper()
+	bytecodes     := mneumonics[mneumonic]
+
+	mut opcode        := bytecodes[0]
+	mut func3         := bytecodes[1]
+	mut func7_or_imm  := bytecodes[2]
+}
+
 fn start_assembler()
 {
-	
+	assert os.kernel != none
+	for{ if kernel.stdin.len != 0 { bytecode(&kernel.stdin) } }	
 }
\ No newline at end of file
diff --git a/src/vm/cpu.v b/src/vm/cpu.v
index 8216ba8..2d9e013 100644
--- a/src/vm/cpu.v
+++ b/src/vm/cpu.v
@@ -72,10 +72,10 @@ fn (cpu CPU) decode(u32 instruction)
 		
 		0x33 {
 
-			mut funct3 := (instruction & 0x7000) >> 12
-			mut rd     := (instruction & 0x7000) >> 12
-			mut rs1    :=
-			mut rs2    :=
+			mut funct3 := (instruction & 0xA80)	 >> 7
+			mut rd     := 
+			mut rs1    := 
+			mut rs2    := 
 			mut funct7 := 
 
 			cpu.current_instruction.fmt_r.opcode := opcode 
diff --git a/src/vm/vm.v b/src/vm/vm.v
index 67be9d6..3796dcd 100644
--- a/src/vm/vm.v
+++ b/src/vm/vm.v
@@ -2,8 +2,7 @@ module main
 
 import cpu
 
-
-mut hardware := Hardware{ram: RAM{}, cpu: Cpu{}}
+mut vm_hardwares := Hardware{ram: RAM{}, cpu: Cpu{}}
 
 struct Hardware
 {
@@ -12,7 +11,6 @@ struct Hardware
 		cpu cpu.CPU;
 }
 
-
 struct RAM 
 {
 	pub:
@@ -23,8 +21,6 @@ struct RAM
 		current_memory_addess u32
 }
 
-
-
 fn load_instructions(asm_instructions[string])
 {
 	for mut instruction in asm_instructions {
@@ -39,8 +35,6 @@ fn start_assembler()
 
 fn start_vm()
 {
-
-
 	// Load asm instructions, converts to machine instructions and save in memory
 	start_assembler() 
 	// Get in memory, decode and run instructions
@@ -49,4 +43,5 @@ fn start_vm()
 	
 	threads  << spawn cpu.start_cpu()
 	threads  << spawn os.boot()
+	thread   << spawn start_asembler()
 }
\ No newline at end of file
diff --git a/test b/test
new file mode 100755
index 0000000..4cae1a3
Binary files /dev/null and b/test differ
diff --git a/test.v b/test.v
new file mode 100644
index 0000000..a3fff6f
--- /dev/null
+++ b/test.v
@@ -0,0 +1,62 @@
+
+import os
+__global t = []string{}
+
+__global is_finish      = false
+__global is_cpu_started = false
+__global is_os_booted   = false
+__global threads = []thread{}
+
+fn start_cpu(){
+
+	mut pc := 0
+
+	if !is_cpu_started { println("STARTING CPU...") }
+
+	for{
+		if t.len != 0 && is_finish {
+
+			println("LOADING INSTRUCTIONS...")
+			mut c := t.pop()
+		}else if t.len == 0 && is_finish{
+			is_finish = false
+		}
+	}
+}
+
+fn sh(){
+
+	mut pc := 0
+
+	if !is_os_booted { println("BOOTING OPERATING SYSTEM...") }
+
+	println("=================================================================")
+	println("                          WELCOME TO VINUX                       ")
+	println("=================================================================")
+	for{
+		
+		mut str := os.input('# ')
+		
+		if str == 'EXIT' {
+			exit(0)		
+		} else if str != 'END' {
+			t << str
+		}else{
+			is_finish = true
+		}
+	}
+}
+
+
+fn main(){
+
+	mut first := false
+	
+	for {
+		is_cpu_started = true
+		threads << spawn start_cpu()
+		is_os_booted   = true
+		threads << spawn sh()
+		threads.wait()
+	}
+}
diff --git a/test.vsh b/test.vsh
new file mode 100644
index 0000000..88faa87
--- /dev/null
+++ b/test.vsh
@@ -0,0 +1,37 @@
+
+import readline
+
+mut t := []string{}
+
+fn start_cpu(){
+
+	mut pc := 0
+
+	for{
+		if t.len != 0 {
+
+			print(t[pc])
+			pc++;
+		}
+	}
+}
+
+fn start_mem(){
+
+	read := readline.Readline{}
+	mut pc := 0
+
+	for{
+		mut str := read.read_line()
+		t << str
+	}
+}
+
+fn main(){
+
+	mut threads := []thread{}
+
+	threads << spawn start_cpu()
+	threads << spawn start_mem()
+	thread.wait()
+}
\ No newline at end of file