First post, by paulacchang
Games such as 3D Ultra Pinball 1 and 2, Betrayal in Antara worked with DOSBox 0.72, but no longer with DOSBox 0.73. I keep getting a "Unexpected DOS error: 21" message box popping up. I tried to step thru
static Bitu DOS_21Handler(void)
using a debug build of DOSBox 0.73 (I don't know if this is the correct thing to do), but alas my knowledge of DOS programming sucks. Any suggestions?
On a somewhat related note, I noticed that when Windows 3.1 is loading, reg_ah does attain the value 0xdc which is not handled by the above mentioned function. I couldn't find any reference on the internet which describes what 0xdc does.
Thanks.