Added comments and cleanup

2 files changed, 3 insertions, 4 deletions

diff --git a/src/sys/kernel.S b/src/sys/kernel.S
index 90e1c4f..3ffc6a5 100644
--- a/src/sys/kernel.S
+++ b/src/sys/kernel.S
@@ -4,10 +4,7 @@
 kernel_main:
 	///https://wiki.osdev.org/ARM_Paging
 	// Query the ID_MMFR0 register
-	mrc p15, 0, r2, c0, c1, 4
-	mov r0, #0
-	mov r1, #7
-	bl draw_hex32
+	mrc p15, 0, r0, c0, c1, 4
 	bl sysinit
 	// Intentional undefined instruction
 	// .word 0xf7f0a000
diff --git a/src/sys/schedule.c b/src/sys/schedule.c
index dd59891..347b91a 100644
--- a/src/sys/schedule.c
+++ b/src/sys/schedule.c
@@ -42,8 +42,10 @@ void init_scheduler(void)
 struct RStack get_stack(void)
 {
 	struct RStack r = {.sp = 0, .idx = -1};
+	// Find an available stack
 	for (int i = 0; i < MAX_THREADS; i++) {
 		if (stacks_table[i] == 0) {
+			// Mark unavailable
 			stacks_table[i] = 1;
 			r.idx = i;
 			r.sp = (void*)0x20000000 - STACK_SIZE*i;