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Annotation of researchv9/sys/sun3/pcb.h, revision 1.1

1.1     ! root        1: /*     @(#)pcb.h 1.1 86/02/03 SMI      */
        !             2: 
        !             3: /*
        !             4:  * Copyright (c) 1985 by Sun Microsystems, Inc.
        !             5:  */
        !             6: 
        !             7: /*
        !             8:  * Sun software process control block
        !             9:  */
        !            10: 
        !            11: #ifndef LOCORE
        !            12: struct pcb {
        !            13:        label_t pcb_regs;       /* saved registers */
        !            14:        int     pcb_sr;         /* program status word */
        !            15:        struct  pte *pcb_p0br;  /* pseudo-P0BR for Sun */
        !            16:        int     pcb_p0lr;       /* pseudo-P0LR for Sun */
        !            17:        struct  pte *pcb_p1br;  /* pseudo-P1BR for Sun */
        !            18:        int     pcb_p1lr;       /* pseudo-P1LR for Sun */
        !            19:        int     pcb_szpt;       /* number of pages of user page table */
        !            20:        int     *pcb_sswap;
        !            21: };
        !            22: #endif
        !            23: 
        !            24: #define        AST_SCHED       0x80000000      /* force a reschedule */
        !            25: #define        AST_STEP        0x40000000      /* force a single step */
        !            26: #define        TRACE_USER      0x20000000      /* user has requested tracing */
        !            27: #define        TRACE_AST       0x10000000      /* AST has requested tracing */
        !            28: #define        TRACE_PENDING   0x08000000      /* trace caught in supervisor mode */
        !            29: #define        AST_CLR         0xf8000000
        !            30: #define        PME_CLR         0
        !            31: #define        AST_NONE        0
        !            32: 
        !            33: #define        aston()         {u.u_pcb.pcb_p0lr |= AST_SCHED;}

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