imported SEABIOS source tree

[palacios.git] / bios / seabios / vgasrc / vgaentry.S

diff --git a/bios/seabios/vgasrc/vgaentry.S b/bios/seabios/vgasrc/vgaentry.S
new file mode 100644 (file)
index 0000000..fbfa9f7
--- /dev/null
+++ b/bios/seabios/vgasrc/vgaentry.S
@@ -0,0 +1,48 @@
+// Rom layout and bios assembler to C interface.
+//
+// Copyright (C) 2009  Kevin O'Connor <kevin@koconnor.net>
+//
+// This file may be distributed under the terms of the GNU LGPLv3 license.
+
+
+/****************************************************************
+ * Include of 16bit C code
+ ****************************************************************/
+
+        .code16gcc
+#include "vgaccode.16.s"
+
+#include "entryfuncs.S" // ENTRY_*
+
+
+/****************************************************************
+ * Rom Header
+ ****************************************************************/
+
+        .section .rom.header
+        .global _rom_header, _rom_header_size, _rom_header_checksum
+_rom_header:
+        .word 0xaa55
+_rom_header_size:
+        .byte 0
+_rom_header_entry:
+        jmp _optionrom_entry
+_rom_header_checksum:
+        .byte 0
+_rom_header_other:
+        .space 21
+
+
+/****************************************************************
+ * Entry points
+ ****************************************************************/
+
+        DECLFUNC _optionrom_entry
+_optionrom_entry:
+        ENTRY_ARG vga_post
+        lretw
+
+        DECLFUNC entry_10
+entry_10:
+        ENTRY_ARG handle_10
+        iretw