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Annotation of 43BSDReno/sys/tahoealign/Aprobew.c, revision 1.1.1.1

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: }

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