Rainbow Arts Soundman also listen to 0x300 maybe Voice Master too?
I've tried to decode and simulate address decoder of Rainbow Arts Soundman from photos.
That's what I've came up with.
This card puts OPL2 on base addresses: 0x380, 0x388, 0x38E.
And 8-bit Non-DMA DAC on base addresses: 0x220, 0x221, 0x228, 0x229, 0x22E, 0x22F, 0x300, 0x301, 0x308, 0x309, 0x30E, 0x30F
And all of those at the same time! 😲
That's very odd choise of ports. And weird schematic of decoder.
It uses two 74LS138 ICs, two elements from 74LS10 and two elements from 74LS04.
Please also include me in the list.