X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fthreads%2Floader.S;fp=src%2Fthreads%2Floader.S;h=b7842d3840743c6f25ab0bceaafcbd97e74e65fd;hb=fc645de2c1499c0069ba0bb76240a5d93c94717b;hp=ca79cdfda730cf75ba173750feb1aa76d0776bc2;hpb=e928b6a40e8bd2ef7cd5c033ba59939c7396088b;p=pintos-anon

diff --git a/src/threads/loader.S b/src/threads/loader.S
index ca79cdf..b7842d3 100644
--- a/src/threads/loader.S
+++ b/src/threads/loader.S
@@ -56,14 +56,16 @@
 #define CR0_PG 0x80000000      /* Paging. */
 #define CR0_WP 0x00010000      /* Write-Protect enable in kernel mode. */
 
-# Code runs in real mode, which is a 16-bit segment.
 
 .globl start
 start:
+	
+# Code runs in real mode, which is a 16-bit segment.
 	.code16
 
-# Disable interrupts.
-# String instructions go upward.
+# Disable interrupts, because we will not be prepared to handle them
+# in protected mode until much later.
+# String instructions go upward (e.g. for "rep stosl" below).
 
 	cli
 	cld