r40m              469 dev/ic/opl.c   	u_int8_t r20m, r20c, r40m, r40c, rA0, rB0;
r40m              524 dev/ic/opl.c   	r40m = (ksl0 & OPL_KSL_MASK) | vol0;
r40m              542 dev/ic/opl.c   	opl_set_op_reg(sc, OPL_KSL_LEVEL,   voice, 0, r40m);