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Annotation of cci/sys/tahoe/Aget_longword.c, revision 1.1.1.1

1.1       root        1: #include       "../machine/alignment.h"
                      2: int get_longword (infop, address)
                      3: process_info   *infop;
                      4: char           *address;
                      5: /*
                      6: /*     Fetch the longword at the given 'address' from memory.
                      7: /*     Caveat: It's quite difficult to find a pte reference
                      8: /*             fault.  So I took the easy way out and just signal
                      9: /*             an illegal access.
                     10: /*     
                     11: /**************************************************/
                     12: {
                     13:        register long code, value;
                     14: 
                     15:        code = readable(infop, address, 4);
                     16:        if (code == TRUE) {
                     17:                value = *address++;
                     18:                value = (value << 8) | *address++ & 0xff;
                     19:                value = (value << 8) | *address++ & 0xff;
                     20:                value = (value << 8) | *address & 0xff;
                     21:                return(value);
                     22:        } else exception (infop, ILL_ACCESS, address, code);
                     23: }

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