X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fint86.h;h=2545925861d9c2cbfa52ccf90e1b716849815cb7;hb=22dd4db1a4ff756f76bdd87062c2252fe3091228;hp=fdae52520f2ec4485cde147afe7d3e7269e6f736;hpb=11db15bb0f0f3d23aa9b2966c2f65a0379246813;p=bootcensus

diff --git a/src/int86.h b/src/int86.h
index fdae525..2545925 100644
--- 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_ */