[unix-history] / usr / src / sys / tahoe / align / Amovzb.c

/*      Amovzb.c        1.2     90/12/04        */

#include "align.h" 
movzb(infop)    process_info *infop;
/*
/*      Move byte to word or longword, zero-extended
/*
/****************************************/
{
       register long result;
       register struct oprnd *oppnt;

       oppnt = operand(infop,0);
       result = oppnt->data;
       negative_0;
       if (result == 0 )  zero_1 ; else zero_0;
       overflow_0;  carry_1;
       if ((oppnt->mode & 0xff) == Dir) 
               write_back (infop, result , operand(infop,1) );
       else write_back (infop, result & 0xff, operand(infop,1) );
}