Stub support mb2 for i386

Architecture/i386/Bootstrap/Multiboot/2/GDT32.s

@@ -0,0 +1,66 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+.intel_syntax noprefix
+
+.code32
+.section .bootstrap.text
+
+.align 32
+.global gdtr
+gdtr:
+	.word GDT32_END - GDT32 - 1
+	.long GDT32
+
+.align 32
+GDT32:
+	.quad 0x0
+
+	.word 0xFFFF
+	.word 0x0000
+	.byte 0x00
+	.word 0xCF9A
+	.byte 0x00
+
+	.word 0xFFFF
+	.word 0x0000
+	.byte 0x00
+	.word 0xCF92
+	.byte 0x00
+
+	.word 0x0100
+	.word 0x1000
+	.byte 0x00
+	.word 0x4092
+	.byte 0x00
+GDT32_END:
+
+.global LoadGDT32
+LoadGDT32:
+	lgdt [gdtr]
+
+	jmp 0x8:ActivateGDT
+	ActivateGDT:
+		mov cx, 0x10
+		mov ss, cx
+		mov ds, cx
+		mov es, cx
+		mov fs, cx
+		mov cx, 0x18
+		mov gs, cx
+
+	ret