more of bootloader, tiny kernel stub

1 files changed, 31 insertions, 0 deletions

diff --git a/src/kernel/vga.h b/src/kernel/vga.h
new file mode 100644
index 0000000..74a5d04
--- /dev/null
+++ b/src/kernel/vga.h
@@ -0,0 +1,31 @@
+/*
+Copyright 2019 Benji Dial
+
+Permission to use, copy, modify, and/or distribute this
+software for any purpose with or without fee is hereby
+granted, provided that the above copyright notice and this
+permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS
+ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
+EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+OF THIS SOFTWARE.
+*/
+
+#include <stdint.h>
+
+#ifndef VGA_H
+#define VGA_H
+
+#define VGA_BUFFER ((uint8_t *)0x000b8000)
+void put_char(uint8_t ch);
+void put_sz(uint8_t *s);
+void move_cursor(uint8_t col, uint8_t row);
+void set_color(uint8_t c);
+
+#endif
\ No newline at end of file