Return to Aprobew.c CVS log

Up to [CSRG BSD Unix] / 43BSDReno / sys / tahoealign

Annotation of 43BSDReno/sys/tahoealign/Aprobew.c, revision 1.1

1.1     ! root        1: /*     Aprobew.c       1.1     86/07/20        */
        !             2: 
        !             3: #include "../tahoealign/align.h" 
        !             4: 
        !             5: #define        PSL_USER        PSL_CURMOD
        !             6: probew(infop)  process_info *infop;
        !             7: /*
        !             8: /*     Probe write accessability.
        !             9: /*
        !            10: /*************************************/
        !            11: {
        !            12:        register        long    Register_12;    /* Has to be first reg ! */
        !            13:        register        long    Register_11;
        !            14:        register        long    Register_10;
        !            15:        register        long    Register_9;
        !            16: 
        !            17:        Register_9 = operand(infop,0)->data & 1;        /* Required mode */
        !            18:        if (psl & PSL_USER) Register_9 = 1;             /* user can't probe as
        !            19:                                                         *  kernel ! */
        !            20:        Register_10 = operand(infop,1)->address;        /* Base address */
        !            21:        Register_11 = operand(infop,2)->data;           /* Length */
        !            22:        Register_12=psl;
        !            23:        Set_psl(r12);   /* restore the user psl */
        !            24:        asm ("  probew  r9,(r10),r11");
        !            25:        asm ("  movpsl  r12");
        !            26:        New_cc (Register_12);
        !            27: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.