zs_oldcode
code_int zs_code, zs_oldcode, zs_incode;
#define zs_oldcode u.r.zs_oldcode
code_int zs_code, zs_oldcode, zs_incode;
#define zs_oldcode u.r.zs_oldcode
zs->zs_finchar = zs->zs_oldcode = getcode(zs);
if (zs->zs_oldcode == -1) /* EOF already? */
zs->zs_code = zs->zs_oldcode;
tab_prefixof(zs->zs_code) = (u_short) zs->zs_oldcode;
zs->zs_oldcode = zs->zs_incode;