read_number
start = stop = read_number(&p);
stop = read_number(&p);
read_number(s1, &sign1, smain1, &main1, sfrac1, &frac1, &SI1);
read_number(s2, &sign2, smain2, &main2, sfrac2, &frac2, &SI2);
read_number(s1, &sign1, smain1, &main1, sfrac1, &frac1, &SI1);
read_number(s2, &sign2, smain2, &main2, sfrac2, &frac2, &SI2);
minfree = 2 * read_number("minfree"); /* scale KB to 512 blocks */
static int read_number(char *);