Improve code formatting

Signed-off-by: Aaron Erhardt <aaron.erhardt@t-online.de>

Mikrocomputertechnik/asm.md

@@ -190,7 +190,7 @@ label
 
 ```asm
 main
-    ldr r0, =1 ; initialize parameters
+    ldr r0, =1  ; initialize parameters
     ldr r1, =2
     bl add_nums ; run subroutine
 	; r2 can now be used as returned value
@@ -210,24 +210,25 @@ main
 	ldr r8, =2
 
 	; prepare parameters and return values
-    push {r7} ; parameter 1
-    push {r8} ; parameter 2
-    push {r9} ; return value 1
+    push {r7}  ; parameter 1
+    push {r8}  ; parameter 2
+    push {r9}  ; return value 1
 
     bl add_nums ; run subroutine
 
-    pop {r9} ; get return value from the stack
-    pop {r8} ; free stack space again
-    pop {r7} ; free stack space again
+    pop {r9}  ; get return value from the stack
+    pop {r8}  ; free stack space again
+    pop {r7}  ; free stack space again
 
 add_nums
-    push {lr, r0-r2} ; increments stack pointer by 4 * (amount of registers)!
+	; increments stack pointer by 4 * (amount of registers)!
+    push {lr, r0-r2}
 
-     ; load parameters into registers
-    ldr r0, [sp, #4*6] ; 4*4 + 4*2 -> r7 (was pushed first, highest address)
+    ; load parameters into registers
+    ldr r0, [sp, #4*6] ; 4*4 + 4*2 -> r7 (pushed first -> highest address)
     ldr r1, [sp, #4*5] ; 4*4 + 4*1 -> r8
 
-    add r2, r0, r1 ; perform actual calculation
+    add r2, r0, r1     ; perform actual calculation
 
     ; store return values on reserved the stack space
     str r2, [sp, #4*4] ; 4*4 + 4*0 -> r9