1st Berkeley Release

[unix-history] / usr / src / sys / i386 / include / pcb.h

diff --git a/usr/src/sys/i386/include/pcb.h b/usr/src/sys/i386/include/pcb.h
index 6036a72..b7acbe3 100644 (file)
--- a/usr/src/sys/i386/include/pcb.h
+++ b/usr/src/sys/i386/include/pcb.h
@@ -1,3 +1,15 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * %sccs.include.noredist.c%
+ *
+ *     @(#)pcb.h       5.1 (Berkeley) %G%
+ */
+

 /*
  * Intel 386 process control block
  */
 /*
  * Intel 386 process control block
  */


@@ -15,6 +27,9 @@ struct pcb {
 /*
  * Software pcb (extension)
  */
 /*
  * Software pcb (extension)
  */

+       int     pcb_fpsav;
+#define        FP_NEEDSAVE     0x1     /* need save on next context switch */
+#define        FP_NEEDRESTORE  0x2     /* need restore on next DNA fault */

        struct  save87  pcb_savefpu;
        struct  pte     *pcb_p0br;
        struct  pte     *pcb_p1br;
        struct  save87  pcb_savefpu;
        struct  pte     *pcb_p0br;
        struct  pte     *pcb_p1br;


@@ -25,4 +40,3 @@ struct pcb {
        int     *pcb_sswap;
        long    pcb_sigc[5];    /* sigcode actually 19 bytes */
 };
        int     *pcb_sswap;
        long    pcb_sigc[5];    /* sigcode actually 19 bytes */
 };

-