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Annotation of 43BSD/sys/vax/psl.h, revision 1.1.1.1

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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