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| author | Frans Kaashoek <[email protected]> | 2011-08-08 13:30:08 -0400 |
|---|---|---|
| committer | Frans Kaashoek <[email protected]> | 2011-08-08 13:30:08 -0400 |
| commit | a56c8d609b24e4c1c3a8a5bacdced6ae53376ee2 (patch) | |
| tree | 9d049eae2080a7c330fb7ac3ec9ff6e557a310e4 /bootasm.S | |
| parent | 11b7438b1046eecca6135b52ddbe686008099fa5 (diff) | |
| download | xv6-labs-a56c8d609b24e4c1c3a8a5bacdced6ae53376ee2.tar.gz xv6-labs-a56c8d609b24e4c1c3a8a5bacdced6ae53376ee2.tar.bz2 xv6-labs-a56c8d609b24e4c1c3a8a5bacdced6ae53376ee2.zip | |
One definition of several macros and constants
Diffstat (limited to 'bootasm.S')
| -rw-r--r-- | bootasm.S | 8 |
1 files changed, 3 insertions, 5 deletions
@@ -1,15 +1,12 @@ #include "asm.h" +#include "memlayout.h" +#include "mmu.h" # Start the first CPU: switch to 32-bit protected mode, jump into C. # The BIOS loads this code from the first sector of the hard disk into # memory at physical address 0x7c00 and starts executing in real mode # with %cs=0 %ip=7c00. -#define SEG_KCODE 1 // kernel code -#define SEG_KDATA 2 // kernel data+stack - -#define CR0_PE 1 // protected mode enable bit - .code16 # Assemble for 16-bit mode .globl start start: @@ -88,3 +85,4 @@ gdt: gdtdesc: .word (gdtdesc - gdt - 1) # sizeof(gdt) - 1 .long gdt # address gdt + |