diff --git a/2ano/2semestre/ac2/README.md b/2ano/2semestre/ac2/README.md
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+# Arquitetura de Computadores 2
+### Projetos + resoluções de exercícios organizados por aulas
+
+---
+*Pode conter erros, caso encontre algum, crie um* [*ticket*](https://github.com/TiagoRG/uaveiro-leci/issues/new)
diff --git a/2ano/2semestre/ac2/aula01/AC2-P-Aula01.pdf b/2ano/2semestre/ac2/aula01/AC2-P-Aula01.pdf
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Binary files /dev/null and b/2ano/2semestre/ac2/aula01/AC2-P-Aula01.pdf differ
diff --git a/2ano/2semestre/ac2/aula01/part1.s b/2ano/2semestre/ac2/aula01/part1.s
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+	.equ	PRINT_STR, 8
+
+	.data
+msg:	.asciz	"AC2 - Aulas praticas\n"
+
+	.text
+	.globl	main
+
+main:	la	$a0, msg
+	li	$v0, PRINT_STR
+	syscall				# printStr("AC2 - Aulas praticas\n");
+	li	$v0, 0			# return 0;
+	jr	$ra
diff --git a/2ano/2semestre/ac2/aula01/part2-a.s b/2ano/2semestre/ac2/aula01/part2-a.s
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+++ b/2ano/2semestre/ac2/aula01/part2-a.s
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+	.equ	GET_CHAR, 2
+	.equ	PUT_CHAT, 3
+	.equ	PRINT_INT, 6
+	.equ	PRINT_STR, 8
+	.data
+	
+	.text
+	.globl main
+
+# Mapa de registos
+# $t0:	cnt
+# $t1:	c
+
+main:	li	$t0, 0
+	
+do:					# do {
+	li	$v0, GET_CHAR
+	syscall
+	move	$t1, $v0		# c = getChar();
+
+	li	$v0, PUT_CHAT
+	addi	$a0, $t1, 0
+	syscall				# putChar(c);
+
+	addi	$t0, 1			# cnt++;
+
+	bne	$t1, '\n', do		# } while (c != '\n');
+
+fi:	li	$v0, PRINT_INT
+	move	$a0, $t0
+	li	$a1, 10
+	syscall
+
+	li	$v0, 0
+	jr	$ra
diff --git a/2ano/2semestre/ac2/aula01/part2-b.s b/2ano/2semestre/ac2/aula01/part2-b.s
new file mode 100644
index 0000000..ca2c172
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+++ b/2ano/2semestre/ac2/aula01/part2-b.s
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+	.equ	INKEY, 1
+	.equ	GET_CHAR, 2
+	.equ	PUT_CHAT, 3
+	.equ	PRINT_INT, 6
+	.equ	PRINT_STR, 8
+	.data
+	
+	.text
+	.globl main
+
+# Mapa de registos
+# $t0:	cnt
+# $t1:	c
+
+main:	li	$t0, 0
+	
+do:					# do {
+	li	$v0, INKEY
+	syscall
+	move	$t1, $v0		# c = inkey();
+
+if:	beq	$t1, 0, fi		# if (c != 0) {
+	move	$a0, $t1		# putchar(c);
+	
+fi:	li	$v0, PUT_CHAT
+	syscall				# getchar();
+
+	addi	$t0, 1			# cnt++;
+
+	bne	$t1, '\n', do		# } while (c != '\n');
+
+fi:	li	$v0, PRINT_INT
+	move	$a0, $t0
+	li	$a1, 10
+	syscall
+
+	li	$v0, 0
+	jr	$ra
diff --git a/2ano/2semestre/ac2/aula01/part2-c.s b/2ano/2semestre/ac2/aula01/part2-c.s
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+++ b/2ano/2semestre/ac2/aula01/part2-c.s
@@ -0,0 +1,75 @@
+	.equ	GET_CHAR, 2
+	.equ	PUT_CHAT, 3
+	.equ	READ_INT10, 5
+	.equ	PRINT_INT, 6
+	.equ	PRINT_INT10, 7
+	.equ	PRINT_STR, 8
+	.data
+
+input:	.asciiz "\nIntroduza um inteiro (sinal e modulo): "
+out_10: .asciiz "\nValor em base 10 (signed): "
+out_2:	.asciiz "\nValor em base 2: "
+out_16: .asciiz "\nValor em base 16: "
+out_u10:
+	.asciiz "\nValor em base 10 (unsigned): "
+out_u10f:
+	.asciiz "\nValor em base 10 (unsigned), formatado: "
+
+	.text
+	.globl main
+
+main:	la	$a0, input
+	li	$v0, PRINT_STR
+	syscall				# printStr(input);
+
+	li	$v0, READ_INT10
+	syscall
+	move	$t0, $v0		# value = readInt10();
+
+	la	$a0, out_10
+	li	$v0, PRINT_STR
+	syscall				# printStr(10 signed);
+
+	move	$a0, $t0
+	li	$v0, PRINT_INT10
+	syscall				# printInt10(value);
+
+	la	$a0, out_10
+	li	$v0, PRINT_STR
+	syscall				# printStr(2);
+
+	move	$a0, $t0
+	li	$a1, 2
+	li	$v0, PRINT_INT
+	syscall				# printInt(value, 2);
+
+	la	$a0, out_10
+	li	$v0, PRINT_STR
+	syscall				# printStr(16);
+
+	move	$a0, $t0
+	li	$a1, 16
+	li	$v0, PRINT_INT
+	syscall				# printInt(value, 16);
+
+	la	$a0, out_10
+	li	$v0, PRINT_STR
+	syscall				# printStr(10 unsigned);
+
+	move	$a0, $t0
+	li	$a1, 10
+	li	$v0, PRINT_INT
+	syscall				# printInt(value, 10);
+
+	la	$a0, out_u10f
+	li	$v0, PRINT_STR
+	syscall				# printStr(10 unsigned, formatado);
+
+	move	$a0, $t0
+	li	$a1, 5
+	sll	$a1, $a1, 16
+	ori	$a1, $a1, 5
+	li	$v0, PRINT_INT
+	syscall				# printInt(value, 10 | 5 << 16);
+
+	j	main