X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fthreads%2Floader.S;h=fd0f59eda57d40decd38b41c4113ea36b1f33319;hb=9869570326bb4e6d39fb41912a9076d53a82ad2d;hp=aeb58bc9fd55b572d670fe5087fbd5bdbdb96c06;hpb=2f2b3a9b0e72eb25010d1fa757687fd8a87658ef;p=pintos-anon

diff --git a/src/threads/loader.S b/src/threads/loader.S
index aeb58bc..fd0f59e 100644
--- a/src/threads/loader.S
+++ b/src/threads/loader.S
@@ -49,14 +49,14 @@ scan_partitions:
 	call read_sector
 	jc no_such_drive
 	
-2:	pusha
+2:	cmp word ptr [es:510], 0xaa55
+	jnz no_boot_partition
+	
+	pusha
 	mov edx, [es:508]
 	call outw
 	popa
 	
-	cmp word ptr [es:510], 0xaa55
-	jnz no_boot_partition
-	
 	mov si, 446
 1:	mov al, [es:si+4]
 	cmp al, 0x20