From 4fc9a5b06a0b50db6fc12d4ab7d937766e9ec8a7 Mon Sep 17 00:00:00 2001
From: Aleksa Vučković <aleksav013@gmail.com>
Date: Fri, 3 Jun 2022 01:18:48 +0200
Subject: cpuid_vendor_string

---
 Makefile                   |   6 ++++--
 abi386-4.pdf               | Bin 0 -> 1068001 bytes
 src/as/cpuid.s             |  23 +++++++++++++++++++++++
 src/c/kernel.c             |   1 -
 src/c/shell/neofetch.c     |  12 +++++++++++-
 src/include/source/cpuid.h |   8 ++++++++
 6 files changed, 46 insertions(+), 4 deletions(-)
 create mode 100644 abi386-4.pdf
 create mode 100644 src/as/cpuid.s
 create mode 100644 src/include/source/cpuid.h

diff --git a/Makefile b/Makefile
index 20cbb6c..a1b385d 100644
--- a/Makefile
+++ b/Makefile
@@ -50,11 +50,13 @@ ISO=$(TARGET).iso
 # OBJECTS
 
 ## AS OBJECTS
-AS_OBJ=boot.o ioport.o gdt.o idt.o irq.o paging.o
+AS_OBJ=boot.o ioport.o gdt.o idt.o irq.o paging.o cpuid.o
 export AS_OBJECTS=$(patsubst %,$(AS_OBJECT_DIR)/%,$(AS_OBJ))
 
 ## C OBJECTS
-C_OBJ=gdt.o heap.o idt.o kernel.o keyboard.o keymap.o stdio.o string.o tty.o vga.o irq_handler.o stack_protector.o timer.o paging.o shell/uptime.o shell/neofetch.o shell/game.o
+C_OBJ=gdt.o heap.o idt.o kernel.o keyboard.o keymap.o stdio.o string.o tty.o \
+vga.o irq_handler.o stack_protector.o timer.o paging.o shell/uptime.o \
+shell/neofetch.o shell/game.o
 export C_OBJECTS=$(patsubst %,$(C_OBJECT_DIR)/%,$(C_OBJ))
 
 ## ALL OBJECTS IN ORDER
diff --git a/abi386-4.pdf b/abi386-4.pdf
new file mode 100644
index 0000000..28ce48c
Binary files /dev/null and b/abi386-4.pdf differ
diff --git a/src/as/cpuid.s b/src/as/cpuid.s
new file mode 100644
index 0000000..701fa0d
--- /dev/null
+++ b/src/as/cpuid.s
@@ -0,0 +1,23 @@
+.global cpuid_vendor
+
+cpuid_vendor:
+    pushl %ebp
+    mov %esp, %ebp
+    pushl %ebx
+    pushl %edi
+    pushl %esi
+
+    mov $0x0, %eax
+    cpuid
+
+    movl 8(%ebp), %eax
+
+    movl %ebx, (%eax)
+    movl %edx, 4(%eax)
+    movl %ecx, 8(%eax)
+
+    popl %esi
+    popl %edi
+    popl %ebx
+    popl %ebp
+    ret
diff --git a/src/c/kernel.c b/src/c/kernel.c
index 72b2516..a5dc31a 100644
--- a/src/c/kernel.c
+++ b/src/c/kernel.c
@@ -7,7 +7,6 @@
 #include<source/vga.h>
 #include<source/tty.h>
 
-
 void kernel_main(void)
 {
     set_paging();
diff --git a/src/c/shell/neofetch.c b/src/c/shell/neofetch.c
index e770428..4cfc250 100644
--- a/src/c/shell/neofetch.c
+++ b/src/c/shell/neofetch.c
@@ -3,6 +3,7 @@
 #include<source/vga.h>
 #include<source/stdio.h>
 #include<source/timer.h>
+#include<source/cpuid.h>
 
 void neofetch(void)
 {
@@ -34,7 +35,16 @@ void neofetch(void)
     }
     printf("\n");
 
-
     set_color(VGA_COLOR_LIGHT_GREY,VGA_COLOR_BLACK);
+
+    uint8_t cpuid_vendor_string[12];
+    cpuid_vendor(cpuid_vendor_string);
+
+    for (int i = 0; i < 12; i++)
+    {
+        printf("%c", cpuid_vendor_string[i]);
+    }
+    printf("\n");
+
     uptime();
 }
diff --git a/src/include/source/cpuid.h b/src/include/source/cpuid.h
new file mode 100644
index 0000000..f194494
--- /dev/null
+++ b/src/include/source/cpuid.h
@@ -0,0 +1,8 @@
+#ifndef SOURCE_CPUID
+#define SOURCE_CPUID
+
+#include<types.h>
+
+extern void cpuid_vendor(uint8_t cpuid_vendor_string[12]);
+
+#endif
-- 
cgit v1.2.3