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| author | rsc <rsc> | 2009-05-31 01:12:08 +0000 |
|---|---|---|
| committer | rsc <rsc> | 2009-05-31 01:12:08 +0000 |
| commit | 7b644318dd3b17fe5ec0229db956119986082738 (patch) | |
| tree | 1e60a8628081eb2833a58d73903ff1fd7f6a1bbe /bootasm.S | |
| parent | e97519a6d2efd56eb5b5ff2e4c4b20048a33c7af (diff) | |
| download | xv6-labs-7b644318dd3b17fe5ec0229db956119986082738.tar.gz xv6-labs-7b644318dd3b17fe5ec0229db956119986082738.tar.bz2 xv6-labs-7b644318dd3b17fe5ec0229db956119986082738.zip | |
clean up %fs %gs use
Diffstat (limited to 'bootasm.S')
| -rw-r--r-- | bootasm.S | 3 |
1 files changed, 1 insertions, 2 deletions
@@ -7,7 +7,6 @@ #define SEG_KCODE 1 // kernel code #define SEG_KDATA 2 // kernel data+stack -#define SEG_KCPU 3 // kernel per-cpu data #define CR0_PE 1 // protected mode enable bit @@ -63,7 +62,7 @@ start32: movw %ax, %ds # -> DS: Data Segment movw %ax, %es # -> ES: Extra Segment movw %ax, %ss # -> SS: Stack Segment - movw $(SEG_KCPU<<3), %ax # Our per-cpu segment selector + movw $0, %ax # Zero segments not ready for use movw %ax, %fs # -> FS movw %ax, %gs # -> GS |