zs_ebp
u_char *zs_stackp, *zs_ebp;
#define zs_ebp u.r.zs_ebp
zs->zs_bp = zs->zs_ebp = zs->zs_buf;
u_char *zs_stackp, *zs_ebp;
#define zs_ebp u.r.zs_ebp
if (zs->zs_bp + zs->zs_n_bits > zs->zs_ebp) {
for (bp = zs->zs_buf; zs->zs_bp < zs->zs_ebp;
zs->zs_ebp = bp + bits;
zs->zs_size = MINIMUM(zs->zs_n_bits, zs->zs_ebp - zs->zs_bp);
zs->zs_bp = zs->zs_ebp = zs->zs_buf;
zs->zs_bp = zs->zs_ebp = zs->zs_buf;