Project structure and standard library string and VGA and terminal drivers

CMakeLists.txt

@@ -10,19 +10,23 @@ set(CMAKE_CXX_COMPILER "i686-elf-g++")
 set(CMAKE_CXX_FLAGS  "-ffreestanding -O2 -fno-rtti -Wno-write-strings -Wno-multichar -Wno-unused-parameter -Wno-overflow -Wno-narrowing -fno-exceptions -Wno-trigraphs ${CMAKE_CXX_FLAGS}")
 set(CMAKE_EXE_LINKER_FLAGS  "-T ../linker.ld -ffreestanding -O2 -nostdlib -lgcc -Wwrite-strings ${CMAKE_EXE_LINKER_FLAGS}")
 
-include_directories(OwOS "../src")
+include_directories(OwOS "./")
+
 
 # Kernel source
-file(GLOB KERN_SRC 
-    "../src/*.cpp" 
-    "../src/*.asm" 
-    "../*.asm"
-    "../*.cpp" 
-) 
+file(GLOB KERN_SRC        "*.asm" "*.cpp" "kernel/*.asm" "kernel/*.cpp") 
+
+# Driver source
+file(GLOB DRIV_DISP_VGA  "kernel/drivers/VGA/*.asm" "kernel/drivers/VGA/*.cpp")
+file(GLOB DRIV_DISP_TERM "kernel/drivers/terminal/*.asm" "kernel/drivers/terminal/*.cpp")
+
+# Lib source
+file(GLOB LIB_STD        "lib/std/*.asm" "lib/std/*.cpp")
+
 
 set(SRCS ${KERN_SRC})
 
-add_executable(OwOS ${SRCS})
+add_executable(OwOS ${SRCS} ${DRIV_DISP_VGA} ${LIB_STD})
 
 set_target_properties(OwOS PROPERTIES OUTPUT_NAME "OwOS.bin")
 

kernel.cpp

@@ -1,41 +1,23 @@
-#define TERM_WIDTH 80
-#define TERM_HEIGHT 25
-
-struct VGAChar_t {
-    char c;
-    char foreground:4;
-    char background:4;
-}__attribute__((packed));
-
-VGAChar_t* framebuffer = (VGAChar_t*)0xB8000;
-
-void putcar(int x, int y, char c, char foreground, char background) {
-    framebuffer[(y * TERM_WIDTH) + x].c = c;
-    framebuffer[(y * TERM_WIDTH) + x].foreground = foreground;
-    framebuffer[(y * TERM_WIDTH) + x].background = background;
-}
+#include <kernel/drivers/VGA/vga.h>
 
 extern "C"
 
 int kernel_main() {
 
-    for (int x = 0; x < TERM_WIDTH; x++)
-        for (int y = 0; y < TERM_HEIGHT; y++)
-            putcar(x, y, ' ', 0x00, 0x00);
-
-    putcar(0, 0, 'H', 0x01, 0x07);
-    putcar(1, 0, 'A', 0x01, 0x07);
-    putcar(2, 0, 'H', 0x01, 0x07);
-    putcar(3, 0, 'A', 0x01, 0x07);
-    putcar(4, 0, '!', 0x01, 0x07);
-    putcar(5, 0, ' ', 0x01, 0x07);
-    putcar(6, 0, 'P', 0x01, 0x07);
-    putcar(7, 0, 'E', 0x01, 0x07);
-    putcar(8, 0, 'N', 0x01, 0x07);
-    putcar(9, 0, 'I', 0x01, 0x07);
-    putcar(10, 0, 'S', 0x01, 0x07);
-    putcar(11, 0, '!', 0x01, 0x07);
+    putchar(0, 0, 'H', 0x01, 0x07);
+    putchar(1, 0, 'A', 0x01, 0x07);
+    putchar(2, 0, 'H', 0x01, 0x07);
+    putchar(3, 0, 'A', 0x01, 0x07);
+    putchar(4, 0, '!', 0x01, 0x07);
+    putchar(5, 0, ' ', 0x01, 0x07);
+    putchar(6, 0, 'P', 0x01, 0x07);
+    putchar(7, 0, 'E', 0x01, 0x07);
+    putchar(8, 0, 'N', 0x01, 0x07);
+    putchar(9, 0, 'I', 0x01, 0x07);
+    putchar(10, 0, 'S', 0x01, 0x07);
+    putchar(11, 0, '!', 0x01, 0x07);
     
     for (;;)
         asm("hlt");
+        
 }

kernel/drivers/VGA/vga.cpp

@@ -0,0 +1,9 @@
+#include "vga.h"
+
+VGAChar_t* framebuffer = (VGAChar_t*)0xB8000;
+
+void putchar(int x, int y, char c, char foreground, char background) {
+    framebuffer[(y * TERM_WIDTH) + x].c = c;
+    framebuffer[(y * TERM_WIDTH) + x].foreground = foreground;
+    framebuffer[(y * TERM_WIDTH) + x].background = background;
+}

kernel/drivers/VGA/vga.h

@@ -0,0 +1,10 @@
+#define TERM_WIDTH 80
+#define TERM_HEIGHT 25
+
+struct VGAChar_t {
+    char c;
+    char foreground:4;
+    char background:4;
+}__attribute__((packed));
+
+void putchar(int x, int y, char c, char foreground, char background);

kernel/drivers/terminal/terminal.h

@@ -0,0 +1,5 @@
+#include <kernel/drivers/VGA/vga.h>
+
+void clear();
+template <typename T>
+void print(T input);

lib/std/string.cpp

@@ -0,0 +1,5 @@
+#include "string.h"
+
+uint32_t strlen(char* str) {
+    
+}

lib/std/string.h

@@ -0,0 +1,3 @@
+#include <lib/stdint.h>
+
+uint32_t strlen(char* str);

lib/stdint.h

@@ -0,0 +1,10 @@
+#pragma once
+
+typedef signed char             int8_t;
+typedef short int               int16_t;
+typedef int                     int32_t;
+typedef long long int           int64_t;
+typedef unsigned char           uint8_t;
+typedef unsigned short int      uint16_t;
+typedef unsigned int            uint32_t;
+typedef unsigned long long int  uint64_t;