Updated comments

Author: apinsard

kernel.list

@@ -10,7 +10,7 @@ Disassembly of section .init:
     800c:	e5801004 	str	r1, [r0, #4]
     8010:	e1a01121 	lsr	r1, r1, #2
 
-00008014 <loop$>:
+00008014 <main$>:
     8014:	e5801028 	str	r1, [r0, #40]
     8018:	e3a0283f 	mov	r2, #4128768	; 0x3f0000
 
@@ -25,5 +25,5 @@ Disassembly of section .init:
     8030:	e2422001 	sub	r2, r2, #1	; 0x1
     8034:	e3520000 	cmp	r2, #0	; 0x0
     8038:	1afffffc 	bne	8030 <wait2$>
-    803c:	eafffff4 	b	8014 <loop$>
+    803c:	eafffff4 	b	8014 <main$>
     8040:	20200000 	.word	0x20200000

src/main.s

@@ -18,29 +18,33 @@ mov r1,#1
 lsl r1,#18
 str r1,[r0,#4]
 
-# Turn off (#40) the 16th pin (#16) of the GPIO to turn on the ACT LED.
+# Preselect the 16th pin (#16) of the GPIO to turn on/off the ACT LED.
 #mov r1,#1  // These two lines can be factorised in `lsr r1,#2`
 #lsl r1,#16 // since r1 currently contains 2^18
 lsr r1,#2
 
-# Infinite loop
-loop$:
+# Main loop
+main$:
 
+# Turn off (#40) the pin to turn on the ACT LED
 str r1,[r0,#40]
 
+# Wait a few time
 mov r2,#0x3F0000
 wait1$:
 sub r2,#1
 cmp r2,#0
 bne wait1$
 
+# Turn on (#28) the pin to turn off the ACT LED
 str r1,[r0,#28]
 
+# Wait a few time
 mov r2,#0x3F0000
 wait2$:
 sub r2,#1
 cmp r2,#0
 bne wait2$
 
-b   loop$
+b   main$