X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fthreads%2Floader.S;h=b7842d3840743c6f25ab0bceaafcbd97e74e65fd;hb=b9fefe5e8d7d37e23970070a4614a5d1a6692eb2;hp=ca79cdfda730cf75ba173750feb1aa76d0776bc2;hpb=99fba45ab829c0be9ac79e344f00fb7c1700d5f9;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