Trailing-Edge
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PDP-10 Archives
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SRI_NIC_PERM_FS_1_19910112
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c/lib/usys/pause.c
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/* PAUSE - stop until signal.
**
** (c) Copyright Ken Harrenstien 1989
** for all changes after v.3, 30-Aug-1987
** (c) Copyright Ken Harrenstien, SRI International 1987
*/
#include <c-env.h>
#if SYS_T20+SYS_10X+SYS_T10+SYS_CSI+SYS_WTS+SYS_ITS /* Systems supported for */
#include <sys/usysig.h>
#include <errno.h> /* For EINTR */
#if SYS_T20+SYS_10X
#include <jsys.h>
#endif
#if SYS_WTS
#include <muuo.h>
#endif
int
pause()
{
#if SYS_T20+SYS_10X
int acs[5];
jsys(WAIT|JSYS_OKINT, acs);
#elif SYS_WTS
WTSUUO("IWAIT");
#elif SYS_T10+SYS_CSI
asm(" SETZ 1,\n HIBER 1,\n");
#elif SYS_ITS
asm(" SKIPA\n JFCL\n .HANG\n");
#endif
errno = EINTR;
return -1;
}
#endif /* T20+10X+T10+CSI+WAITS+ITS */