SOFTIPLMASK
const uint32_t softiplmask = SOFTIPLMASK(opl);
CTASSERT(SOFTIPLMASK(IPL_NONE) == 0x0000000f);
CTASSERT(SOFTIPLMASK(IPL_SOFTCLOCK) == 0x0000000e);
CTASSERT(SOFTIPLMASK(IPL_SOFTBIO) == 0x0000000c);
CTASSERT(SOFTIPLMASK(IPL_SOFTNET) == 0x00000008);
CTASSERT(SOFTIPLMASK(IPL_SOFTSERIAL) == 0x00000000);
const uint32_t softiplmask = SOFTIPLMASK(opl);
const uint32_t softiplmask = SOFTIPLMASK(opl);