Clean up console

src/hulk/console.d

@@ -8,17 +8,30 @@ import hulk.kfont;
 
 struct console
 {
+    /** Console width in text columns. */
     private static __gshared size_t m_width;
+
+    /** Console height in text rows. */
     private static __gshared size_t m_height;
+
+    /** Current console cursor X position. */
     private static __gshared size_t m_x;
+
+    /** Current console cursor Y position. */
     private static __gshared size_t m_y;
 
+    /**
+     * Initialize the console.
+     */
     public static void initialize()
     {
         m_width = fb.width / kfont.advance;
         m_height = fb.height / kfont.line_height;
     }
 
+    /**
+     * Clear the console.
+     */
     public static void clear()
     {
         fb.clear();
@@ -26,6 +39,11 @@ struct console
         m_y = 0u;
     }
 
+    /**
+     * Write a character to the console.
+     *
+     * @param ch Character to write.
+     */
     public static void write(char ch)
     {
         if (ch == '\n')
@@ -53,17 +71,30 @@ struct console
         }
     }
 
+    /**
+     * Render a character.
+     *
+     * @param x X position.
+     * @param y Y position.
+     * @param ch Character to render.
+     */
     private static void render_char(size_t x, size_t y, char ch)
     {
         const(CharInfo) * ci = &kfont.chars[ch];
         fb.blit_alpha_bitmap(fb_x(x) + ci.left, fb_y(y) + ci.top - ci.height, ci.bitmap, ci.width, ci.height);
     }
 
+    /**
+     * Get the framebuffer X coordinate corresponding to the console X position.
+     */
     private static size_t fb_x(size_t x)
     {
         return x * kfont.advance;
     }
 
+    /**
+     * Get the framebuffer Y coordinate corresponding to the console Y position.
+     */
     private static size_t fb_y(size_t y)
     {
         return fb.height - ((y + 1u) * kfont.line_height);

src/hulk/hulk.d

@@ -28,30 +28,11 @@ private __gshared Header hulk_header = {
 extern(C) void hulk_start(ulong rdi, ulong rsi, ulong rdx, BootInfo * bootinfo)
 {
     fb.initialize(bootinfo.fb.buffer, bootinfo.fb.width, bootinfo.fb.height, bootinfo.fb.stride);
-    fb.clear(0xFF8800u);
-
-    for (size_t y = 100u; y < 120u; y++)
-    {
-        memset32(&bootinfo.fb.buffer[y * bootinfo.fb.stride + 20u], 0x001199u, 20u);
-    }
-
-    string message = "Hello, world! 0123456789!@#$%^&*()_-=+[]{};:\"'<>,./";
-    int x = 100u;
-    foreach (ch; message)
-    {
-        const(CharInfo) * ci = &kfont.chars[ch];
-        fb.blend_alpha_bitmap(x + ci.left, 100 + ci.top - ci.height, ci.bitmap, ci.width, ci.height, 0x0088CCu);
-        x += kfont.advance;
-    }
-
     console.initialize();
     console.clear();
     klog.initialize();
 
-    for (size_t i = 1u; i != 0u; i++)
+    klog.writefln("Welcome to HULK, the HOS UltraLight Kernel!");
-    {
-        klog.writef("Hello! i = %010u\n", i);
-    }
 
     for (;;)
     {