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Diffstat (limited to 'src/boot/boot.stage2.gdt32.asm')
-rw-r--r--src/boot/boot.stage2.gdt32.asm29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/boot/boot.stage2.gdt32.asm b/src/boot/boot.stage2.gdt32.asm
new file mode 100644
index 0000000..f9f27a5
--- /dev/null
+++ b/src/boot/boot.stage2.gdt32.asm
@@ -0,0 +1,29 @@
+y ;; boot.stage2.gdt32.asm
+
+
+GDT32:
+ .null:
+ dd 0x0
+ dd 0x0
+ .code:
+ dw 0xffff
+ dw 0x0000
+ db 0x00
+ db 10011010b
+ db 11001111b
+ db 0x00
+ .data:
+ dw 0xffff
+ dw 0x0000
+ db 0x00
+ db 10010010b
+ db 11001111b
+ db 0x00
+GDT32_end:
+
+GDT32_ptr:
+ .limit: dw GDT32_end - GDT32 - 1
+ .base: dd GDT32
+
+ CODE_SEG32 equ gdt32_code_segment - gdt32_start
+ DATA_SEG32 equ gdt32_data_segment - gdt32_start