init_pci

[bootcensus] / src / int86.h

diff --git a/src/int86.h b/src/int86.h
index fdae525..2545925 100644 (file)
--- a/src/int86.h
+++ b/src/int86.h
@@ -1,3 +1,20 @@
+/*
+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 INT86_H_
 #define INT86_H_
 
@@ -10,6 +27,19 @@ struct int86regs {
        uint16_t es, ds, fs, gs;
 } __attribute__ ((packed));
 
+#define FLAGS_CARRY            0x0001
+#define FLAGS_PARITY   0x0004
+#define FLAGS_AUXC             0x0010
+#define FLAGS_ZERO             0x0040
+#define FLAGS_SIGN             0x0080
+#define FLAGS_TRAP             0x0100
+#define FLAGS_INTR             0x0200
+#define FLAGS_DIR              0x0400
+#define FLAGS_OVF              0x0800
+#define FLAGS_SIOPL(x) (((uint16_t)(x) & 3) << 12)
+#define FLAGS_GIOPL(x) (((x) >> 12) & 3)
+#define FLAGS_NTASK            0x4000
+
 void int86(int inum, struct int86regs *regs);
 
 #endif /* INT86_H_ */