Merge remote-tracking branch 'Kernel/master'

Kernel/arch/i386/bootstrap/Multiboot/helper/detect.s

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+/*
+	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, "a"
+
+.global DetectCPUID
+DetectCPUID:
+	pushfd
+	pop eax
+	mov ecx, eax
+	xor eax, 1 << 21
+	push eax
+	popfd
+	pushfd
+	pop eax
+	push ecx
+	popfd
+	xor eax, ecx
+	jz .NoCPUID
+	mov eax, 1
+	ret
+.NoCPUID:
+	xor eax, eax
+	ret
+
+.global Detect64Bit
+Detect64Bit:
+	mov eax, 0x80000000
+	cpuid
+	cmp eax, 0x80000001
+	jb .NoLongMode
+	mov eax, 0x80000001
+	cpuid
+	test edx, 1 << 29
+	jz .NoLongMode
+	mov eax, 1
+	ret
+.NoLongMode:
+	xor eax, eax
+	ret
+
+.global DetectPSE
+DetectPSE:
+	mov eax,  0x00000001
+	cpuid
+	test edx, 0x00000008
+	jz .NoPSE
+	mov eax, 1
+	ret
+.NoPSE:
+	xor eax, eax
+	ret
+
+.global DetectPAE
+DetectPAE:
+	mov eax,  0x00000001
+	cpuid
+	test edx, 0x00000040
+	jz .NoPAE
+	mov eax, 1
+	ret
+.NoPAE:
+	xor eax, eax
+	ret