ISAPNP_IRQ_LEVEL
v = ISAPNP_IRQ_LEVEL|ISAPNP_IRQ_HIGH;
v = ISAPNP_IRQ_LEVEL;
switch (v0 & (ISAPNP_IRQ_LEVEL|ISAPNP_IRQ_HIGH)) {
case ISAPNP_IRQ_LEVEL|ISAPNP_IRQ_HIGH:
case ISAPNP_IRQ_LEVEL: