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. cast the error and status registers properly to (unsigned short),

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to avoid misinterpreting the 0x8000 bit as a negative sign,

. use the <machine/wtio.h> register def's to print them.
This commit is contained in:
Joerg Wunsch 1996-02-22 00:33:35 +00:00
parent 2e899e8a02
commit 9408e822a5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=14176
1 changed files with 9 additions and 5 deletions
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14
usr.bin/mt/mt.c
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@ -219,6 +219,10 @@ main(argc, argv)
#include <tahoe/vba/cyreg.h>
#endif
#ifdef __FreeBSD__
#include <machine/wtio.h>
#endif
struct tape_desc {
short t_type; /* type of magtape device */
char *t_name; /* printing name */
@ -241,7 +245,7 @@ struct tape_desc {
#endif
#if defined (__FreeBSD__)
/*
* XXX This is terrific. The st driver reports the tape drive
* XXX This is weird. The st driver reports the tape drive
* as 0x7 (MT_ISAR - Sun/Archive compatible); the wt driver
* either reports MT_ISVIPER1 for an Archive tape, or 0x11
* (MT_ISMFOUR) for other tapes.
@ -249,8 +253,8 @@ struct tape_desc {
* magtape driver.
*/
{ MT_ISAR, "SCSI tape drive", 0, 0 },
{ MT_ISVIPER1, "Archive Viper", 0, 0 },
{ MT_ISMFOUR, "Wangtek", 0, 0 },
{ MT_ISVIPER1, "Archive Viper", WTDS_BITS, WTER_BITS },
{ MT_ISMFOUR, "Wangtek", WTDS_BITS, WTER_BITS },
#endif /* defined (__FreeBSD__) */
{ 0 }
};
@ -279,8 +283,8 @@ status(bp)
else {
#endif /* defined (__FreeBSD__) */
(void)printf("%s tape drive, residual=%d\n", mt->t_name, bp->mt_resid);
printreg("ds", bp->mt_dsreg, mt->t_dsbits);
printreg("\ner", bp->mt_erreg, mt->t_erbits);
printreg("ds", (unsigned short)bp->mt_dsreg, mt->t_dsbits);
printreg("\ner", (unsigned short)bp->mt_erreg, mt->t_erbits);
(void)putchar('\n');
#if defined (__FreeBSD__)
}