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authorRobert Morris <[email protected]>2011-09-12 14:27:14 -0400
committerRobert Morris <[email protected]>2011-09-12 14:27:14 -0400
commit90a81b32285ed8d9644b95777c1bc0c931cb69c5 (patch)
treef4033e0d34c0178da320544c5abd5d0fd6338f55
parent9b59dc44dca3299321531900254d71dddd87a476 (diff)
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comment nits
-rw-r--r--bootasm.S6
1 files changed, 3 insertions, 3 deletions
diff --git a/bootasm.S b/bootasm.S
index 1bb45e3..91a595e 100644
--- a/bootasm.S
+++ b/bootasm.S
@@ -12,8 +12,8 @@
start:
cli # BIOS enabled interrupts; disable
- # Set up the important data segment registers (DS, ES, SS).
- xorw %ax,%ax # Segment number zero
+ # Zero data segment registers DS, ES, and SS.
+ xorw %ax,%ax # Set %ax to zero
movw %ax,%ds # -> Data Segment
movw %ax,%es # -> Extra Segment
movw %ax,%ss # -> Stack Segment
@@ -37,7 +37,7 @@ seta20.2:
outb %al,$0x60
# Switch from real to protected mode. Use a bootstrap GDT that makes
- # virtual addresses map dierctly to physical addresses so that the
+ # virtual addresses map directly to physical addresses so that the
# effective memory map doesn't change during the transition.
lgdt gdtdesc
movl %cr0, %eax