1 files changed, 53 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/mbr/adjust.h b/contrib/syslinux-4.02/mbr/adjust.h
new file mode 100644
index 0000000..42c12a3
--- /dev/null
+++ b/contrib/syslinux-4.02/mbr/adjust.h
@@ -0,0 +1,53 @@
+/* -*- asm -*- -----------------------------------------------------------
+ *
+ *   Copyright 2009 Intel Corporation; author: H. Peter Anvin
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * adjust.h
+ *
+ * Macros to adjust the drive number
+ */
+
+#ifndef ADJUST_H
+#define ADJUST_H
+
+#ifdef CTRL_80
+	.macro ADJUST_DRIVE
+	testb	$0x04, BIOS_kbdflags
+	jz	1f
+	movb	$0x80, %dl
+1:
+	.endm
+#elif defined(FORCE_80)
+	.macro ADJUST_DRIVE
+	movb	$0x80, %dl
+	.endm
+#else
+	.macro ADJUST_DRIVE
+	.endm
+#endif
+
+#endif /* ADJUST_H */