BSD 4_3_Tahoe development
[unix-history] / usr / src / sys / tahoealign / Amovzb.c
CommitLineData
c8cccbb7
C
1/* Amovzb.c 1.1 86/07/20 */
2
3#include "../tahoealign/align.h"
4movzb(infop) process_info *infop;
5/*
6/* Move byte to word or longword, zero-extended
7/*
8/****************************************/
9{
10 register long result;
11 register struct oprnd *oppnt;
12
13 oppnt = operand(infop,0);
14 result = oppnt->data;
15 negative_0;
16 if (result == 0 ) zero_1 ; else zero_0;
17 overflow_0; carry_1;
18 if ((oppnt->mode & 0xff) == Dir)
19 write_back (infop, result , operand(infop,1) );
20 else write_back (infop, result & 0xff, operand(infop,1) );
21}