From 6ffe96d1e3f0289c2070e050cf8e1a30288e6d91 Mon Sep 17 00:00:00 2001
From: Alexey Gavrilov <alexey.gavrilov@mail.com>
Date: Fri, 27 Mar 2026 14:03:55 +0700
Subject: Cmake build generator support: build stage

Multi-target architecture implementation:
    each root source code directory presents the one
    *INTERFACE* target to it's subdirectory subtargets
    that link only as *STATIC* library.
    For instance, *arch* directory presents *Architecture* target
    then *Architecture* target has *CPUID*, *IO*, *PORT*
    and etc. dependencies

Exact order of linking targets is: boot.o CRTIBUNDLE <TARGETS> CRTNBUNDLE.
Sequence destruction cause to UB. Please to pay attention to this.

TODO
- Debug information
- Build type
- Toolchain file
- Image creation
- Build by WinGW compiler on Windows platform (optional)

Signed-off-by: Alexey Gavrilov <alexey.gavrilov@mail.com>
---
 arch/x86/cpuid/CpuidCheck.nasm | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 arch/x86/cpuid/CpuidCheck.nasm

(limited to 'arch/x86/cpuid/CpuidCheck.nasm')

diff --git a/arch/x86/cpuid/CpuidCheck.nasm b/arch/x86/cpuid/CpuidCheck.nasm
new file mode 100644
index 0000000..67bc9eb
--- /dev/null
+++ b/arch/x86/cpuid/CpuidCheck.nasm
@@ -0,0 +1,21 @@
+global CPUIDCHK:function
+CPUIDCHK:
+    push ebx
+    pushfd
+    pop eax
+    mov ebx, eax
+    xor eax, 0x200000
+    push eax
+    popfd
+    pushfd
+    pop eax
+    xor eax, ebx
+    je nocpuid
+    mov eax, 1
+    jmp restore
+nocpuid:
+    mov eax, 0
+restore: 
+    pop ebx
+    ret
+.endchk: 
-- 
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