reorganize source

[com32] / src / kern / segm.h

diff --git a/src/kern/segm.h b/src/kern/segm.h
new file mode 100644 (file)
index 0000000..f3b083c
--- /dev/null
+++ b/src/kern/segm.h
@@ -0,0 +1,41 @@
+/*
+pcboot - bootable PC demo/game kernel
+Copyright (C) 2018  John Tsiombikas <nuclear@member.fsf.org>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY, without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+#ifndef SEGM_H_
+#define SEGM_H_
+
+#include <inttypes.h>
+
+enum {
+       SEGM_NULL,
+       SEGM_CODE,
+       SEGM_DATA,
+       SEGM_XCODE,             /* transition 32bit code with base matching the RM segment */
+       SEGM_XDATA,             /* same for data */
+       SEGM_CODE16,
+
+       NUM_SEGMENTS
+};
+
+void init_segm(void);
+
+uint16_t selector(int idx, int rpl);
+
+void set_tss(uint32_t addr);
+
+
+#endif /* SEGM_H_ */