RAISE
RAISE(raise2, SIGSTOP) /* non-maskable */
RAISE(raise3, SIGTSTP) /* ignored in vfork(2) */
RAISE(raise4, SIGTTIN) /* ignored in vfork(2) */
RAISE(raise5, SIGTTOU) /* ignored in vfork(2) */
RAISE(raise6, SIGABRT) /* regular abort trap */
RAISE(raise7, SIGHUP) /* hangup */
RAISE(raise8, SIGCONT) /* continued? */
setboolean(value(RAISE), 1);
setboolean(value(RAISE), !boolean(value(RAISE)));
if (boolean(value(RAISE)) && islower((unsigned char)gch))