usec             1336 src/system.c           long usec;
usec             1339 src/system.c           sec = Scm_BignumDivSI(SCM_BIGNUM(timeout), 1000000, &usec);
usec             1341 src/system.c           tm->tv_usec = usec;
usec             1351 src/system.c           ScmObj usec = SCM_CADR(timeout);
usec             1353 src/system.c           if (!Scm_IntegerP(sec) || !Scm_IntegerP(usec)) goto badtv;
usec             1355 src/system.c           iusec = Scm_GetInteger(usec);