55 lines
797 B
NASM
55 lines
797 B
NASM
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create_gdt:
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mov bx, STAGE_1_GDT_MEMORY_ADDRESS
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mov ds, bx
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mov bx, 8
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mov di, 8
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.set_loop:
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mov ax, bx
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and ax, 0b111
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mov [bx], byte 0xff
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cmp ax, 0
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je .set_loop_condition
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mov [bx], byte 0xff
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cmp ax, 1
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je .set_loop_condition
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mov [bx], byte 0xff
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cmp ax, 2
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je .set_loop_condition
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mov [bx], byte 0xff
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cmp ax, 3
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je .set_loop_condition
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mov [bx], byte 0xff
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cmp ax, 4
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je .set_loop_condition
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mov [bx], byte 0xff
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cmp ax, 5
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je .set_loop_condition
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mov [bx], byte 0xff
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cmp ax, 6
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je .set_loop_condition
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mov [bx], byte 0xff
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cmp ax, 7
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je .set_loop_condition
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.set_loop_condition:
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cmp bx, 48
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jb .set_loop
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ret
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