Initial commit

x86 kernel that prints a hello world message to com1

1 files changed, 24 insertions, 0 deletions

diff --git a/devices/vga.h b/devices/vga.h
new file mode 100644
index 0000000..c2ef2ef
--- /dev/null
+++ b/devices/vga.h
@@ -0,0 +1,24 @@
+#pragma once
+
+/* Hardware text mode color constants. */
+enum vga_color {
+  VGA_COLOR_BLACK = 0,
+  VGA_COLOR_BLUE = 1,
+  VGA_COLOR_GREEN = 2,
+  VGA_COLOR_CYAN = 3,
+  VGA_COLOR_RED = 4,
+  VGA_COLOR_MAGENTA = 5,
+  VGA_COLOR_BROWN = 6,
+  VGA_COLOR_LIGHT_GREY = 7,
+  VGA_COLOR_DARK_GREY = 8,
+  VGA_COLOR_LIGHT_BLUE = 9,
+  VGA_COLOR_LIGHT_GREEN = 10,
+  VGA_COLOR_LIGHT_CYAN = 11,
+  VGA_COLOR_LIGHT_RED = 12,
+  VGA_COLOR_LIGHT_MAGENTA = 13,
+  VGA_COLOR_LIGHT_BROWN = 14,
+  VGA_COLOR_WHITE = 15,
+};
+
+void vga_init();
+void vga_clear(enum vga_color foreground, enum vga_color background);