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