Print the device tree node names

kernel.s

@@ -30,7 +30,10 @@ kernel_main:
 	la t0, kernel_entry
 	csrw stvec, t0
 
-	unimp
+	# unimp
+
+	mv a0, a1
+	call device_tree
 
 .Lkernel_main:
 	j .Lkernel_main
@@ -130,8 +133,8 @@ handle_trap:
 	csrr t1, stval
 	csrr t2, sepc
 
-	li a0, PANIC_MESSAGE_SIZE
-	la a1, panic_message
+	li a1, PANIC_MESSAGE_SIZE
+	la a0, panic_message
 	call write_s
 
 	li a0, ' '
@@ -181,7 +184,12 @@ panic:
 
 .section .text.boot
 boot:
-	la a0, __stack_top
-	mv sp, a0 # Set the stack pointer
+	la t0, __stack_top
+	mv sp, t0 # Set the stack pointer
+
+	lw t0, (__free_ram)
+	la t1, next_paddr
+	sw t0, (t1)
+
 	call bzero
 	j kernel_main