Branch sync and push, reformated and made the OS look more "official"

kernel/drivers/video/vga.c

@@ -0,0 +1,61 @@
+#include "../../include/video/vga.h"
+#include <string.h>
+
+size_t term_row;
+size_t term_col;
+uint8_t term_color;
+uint16_t* term_buf = (uint16_t*)VGA_MEMORY;
+
+void
+term_init(void)
+{
+        term_row = 0;
+        term_col = 0;
+        term_color = vga_entry_color(VGA_COLOR_WHITE, VGA_COLOR_BLACK);
+
+        for (size_t y = 0; y < VGA_HEIGHT; y++) {
+                for (size_t x = 0; x < VGA_WIDTH; x++) {
+                        const size_t index = y * VGA_WIDTH + x;
+                        term_buf[index] = vga_entry(' ', term_color);
+                }
+        }
+}
+
+void
+term_setcolor(uint8_t color)
+{
+        term_color = color;
+}
+
+void
+term_putentryat(char c, uint8_t color, size_t x, size_t y)
+{
+         const size_t index = y * VGA_HEIGHT + x;
+         term_buf[index] = vga_entry(c, color);
+}
+
+void
+term_putchar(char c)
+{
+        term_putentryat(c, term_color, term_row);
+        if (++term_col == VGA_WIDTH) {
+                term_col = 0;
+                if (++term_row == VGA_HEIGHT) {
+                        term_row = 0;
+                }
+        }
+}
+
+void
+term_write(const char* data, size_t size)
+{
+        for (size_t i = 0; i < size; i++) {
+                term_putchar(data[i];
+        }
+}
+
+void
+term_writestr(const char* data)
+{
+        term_write(data, strlen(data));
+}