2019-04-07 15:36:51 +00:00
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; This file is written with Intel ASM Syntax.
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[GLOBAL load_gdt] ; Allows the C code to call gdt_flush().
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2019-04-07 22:43:09 +00:00
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[EXTERN gp]
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2019-04-07 15:36:51 +00:00
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load_gdt:
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2019-04-07 22:43:09 +00:00
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; Get the pointer to the GDT, passed as a parameter.
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lgdt [gp] ; Load the new GDT pointer
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2019-04-07 15:36:51 +00:00
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mov ax, 0x10 ; 0x10 is the offset in the GDT to our data segment
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mov ds, ax ; Load all data segment selectors
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mov es, ax
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mov fs, ax
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mov gs, ax
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mov ss, ax
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2019-04-07 22:43:09 +00:00
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jmp 0x08:flush ; 0x08 is the offset to our code segment: Far jump!
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flush:
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2019-04-07 15:36:51 +00:00
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ret
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