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Annotation of 43BSD/sys/vax/psl.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  *
        !             6:  *     @(#)psl.h       7.1 (Berkeley) 6/5/86
        !             7:  */
        !             8: 
        !             9: /*
        !            10:  * VAX program status longword
        !            11:  */
        !            12: 
        !            13: #define        PSL_C           0x00000001      /* carry bit */
        !            14: #define        PSL_V           0x00000002      /* overflow bit */
        !            15: #define        PSL_Z           0x00000004      /* zero bit */
        !            16: #define        PSL_N           0x00000008      /* negative bit */
        !            17: #define        PSL_ALLCC       0x0000000f      /* all cc bits - unlikely */
        !            18: #define        PSL_T           0x00000010      /* trace enable bit */
        !            19: #define        PSL_IV          0x00000020      /* integer overflow enable bit */
        !            20: #define        PSL_FU          0x00000040      /* floating point underflow enable */
        !            21: #define        PSL_DV          0x00000080      /* decimal overflow enable bit */
        !            22: #define        PSL_IPL         0x001f0000      /* interrupt priority level */
        !            23: #define        PSL_PRVMOD      0x00c00000      /* previous mode (all on is user) */
        !            24: #define        PSL_CURMOD      0x03000000      /* current mode (all on is user) */
        !            25: #define        PSL_IS          0x04000000      /* interrupt stack */
        !            26: #define        PSL_FPD         0x08000000      /* first part done */
        !            27: #define        PSL_TP          0x40000000      /* trace pending */
        !            28: #define        PSL_CM          0x80000000      /* compatibility mode */
        !            29: 
        !            30: #define        PSL_MBZ         0x3020ff00      /* must be zero bits */
        !            31: 
        !            32: #define        PSL_USERSET     (PSL_PRVMOD|PSL_CURMOD)
        !            33: #define        PSL_USERCLR     (PSL_IS|PSL_IPL|PSL_MBZ)

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