zs_read_reg
uint8_t zs_read_reg(struct zs_chanstate *, uint8_t);
tconst = zs_read_reg(cs, 12);
tconst |= zs_read_reg(cs, 13) << 8;
u_char zs_read_reg(struct zs_chanstate *cs, u_char reg);
rr1 = zs_read_reg(cs, 1);
tconst = zs_read_reg(cs, 12);
tconst |= zs_read_reg(cs, 13) << 8;
u_char zs_read_reg(struct zs_chanstate *cs, u_char reg);
rr1 = zs_read_reg(cs, 1);
rr3 = zs_read_reg(cs0, 3);
rr1 = zs_read_reg(cs, 1);
rr1 = zs_read_reg(cs, 1);