OK I have a simple Soundblaster DOS question.... Should the DOS SB Emulation IRQ be the same as the IRQ reported in Windows device manager?
I had read all the info on setting up SoundBlaster drivers for DOS mode. In fact, I had it working. Then I didn't touch the computer for 2-3weeks. Tonight I boot up to do some more final edits to the MAME set-up only to discover that sound was no longer working when booting straight to DOS.
Tried booting to Windows, sound works in there. I tried setting the IRQ setting to each possible value and every time it just causes either lockups at boot. Or just initialization failures. ONCE I got SBEGO (the diagnostic tool) to work and play sound. So I went and tried MAME and I got some weird error about "can't allocate memory below 4 mbyte limit" or something like that.
One thing I am just not clear on, is whether or not the DOS IRQ setting must be the same as what Windows reports in the device manager resources? In Windows, it says the card is configured as IRQ 4. But in DOS, IRQ 4 is not available.