diff --git a/src/a0.1.add.asm b/src/a0.1.add.asm
new file mode 100644
index 0000000..1dd8333
--- /dev/null
+++ b/src/a0.1.add.asm
@@ -0,0 +1,7 @@
+	org 100h
+	cpu 8086
+
+START:	mov al, 8
+	mov bl, 20
+	add al, bl
+	jmp START
diff --git a/src/a0.1.sub.asm b/src/a0.1.sub.asm
new file mode 100644
index 0000000..99f0f26
--- /dev/null
+++ b/src/a0.1.sub.asm
@@ -0,0 +1,7 @@
+	org 100h
+	cpu 8086
+
+START:	mov al, 8
+	mov bl, 20
+	sub al, bl
+	jmp START
diff --git a/src/a0.2.and.asm b/src/a0.2.and.asm
new file mode 100644
index 0000000..e653217
--- /dev/null
+++ b/src/a0.2.and.asm
@@ -0,0 +1,7 @@
+	org 100h
+	cpu 8086
+
+START:	mov al, -8
+	mov bl, 13
+	and al, bl
+	jmp START
diff --git a/src/a0.2.or.asm b/src/a0.2.or.asm
new file mode 100644
index 0000000..c529c40
--- /dev/null
+++ b/src/a0.2.or.asm
@@ -0,0 +1,7 @@
+	org 100h
+	cpu 8086
+
+START:	mov al, -8
+	mov bl, 13
+	or al, bl
+	jmp START
diff --git a/src/a0.3.add.asm b/src/a0.3.add.asm
new file mode 100644
index 0000000..19b9974
--- /dev/null
+++ b/src/a0.3.add.asm
@@ -0,0 +1,7 @@
+	org 100h
+	cpu 8086
+
+START:	mov al, -1
+	mov bl, -1
+	add al, bl
+	jmp START
diff --git a/src/a0.3.xor.asm b/src/a0.3.xor.asm
new file mode 100644
index 0000000..42fa4e4
--- /dev/null
+++ b/src/a0.3.xor.asm
@@ -0,0 +1,7 @@
+	org 100h
+	cpu 8086
+
+START:	mov al, -1
+	mov bl, -1
+	xor al, bl
+	jmp START
diff --git a/src/a1.asm b/src/a1.asm
new file mode 100644
index 0000000..7c74aed
--- /dev/null
+++ b/src/a1.asm
@@ -0,0 +1,17 @@
+	org 100h
+	cpu 8086
+
+	jmp START
+
+BYTE1	db 32
+	db 'Hardwarenahes Programmieren'
+	times 4 db 0, '1'
+	dw 1, 2, 3, 4, 1234
+	dd 1234h
+
+START:	mov bx, BYTE1
+
+WDH:	mov al, [bx]
+	out 0, al
+	inc bx
+	jmp WDH
diff --git a/src/a2.asm b/src/a2.asm
new file mode 100644
index 0000000..0a1399e
--- /dev/null
+++ b/src/a2.asm
@@ -0,0 +1,16 @@
+	org 100h
+	cpu 8086
+
+	jmp START
+
+BYTE1	db 32
+	db 'Hardwarenahes Programmieren'
+	times 4 db 0, '1'
+	dw 1, 2, 3, 4, 1234
+	dd 1234h
+
+START:	mov bx, BYTE1
+WDH:	mv al, [bx]
+	out 0, al
+	inc bx
+	jmp WDH