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[raggedstone] / dhwk / userland / dump_register.c
1 #include <stdio.h>
2 #include <sys/io.h>
3 #include <errno.h>
4 #include <stdlib.h>
5 #include <unistd.h>
6
7 #define die(x) \
8 { \
9 char buf[BUFSIZ]; \
10 snprintf(buf, sizeof(buf), \
11 "%s: %d: %s: %s", \
12 __FILE__, (int) __LINE__, __FUNCTION__, x); \
13 perror(buf); \
14 exit(EXIT_FAILURE); \
15 }
16
17 int
18 main(void)
19 {
20 int ret;
21 unsigned int word;
22
23 ret = ioperm(0xe800,8,1);
24 if (ret < 0) {
25 die("ioperm");
26 }
27 word = inw(0xe804);
28 printf("0x%04x\n", 0x0 | word);
29
30 word = inw(0xe806);
31 printf("0x%04x\n", 0x0 | word);
32
33 ret = ioperm(0xe800,8,0);
34 if (ret < 0) {
35 die("ioperm");
36 }
37
38 return(EXIT_SUCCESS);
39 }
40
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