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0.20b
v0.20b : Fixes/improvements to v0.20 (Commercial game/feature support)
- fixed render masked texture bug
- binary is 5-6k smaller
- b000 and cc00 memory regions no longer used for extra memory
- 8088, 186 builds also included
- Sample config sys included
Generally speaking, to run this you will need 640k of conventional memory plus 2MB of EMS memory with 256-640k backfill support. 64k of memory in the E000 block is also necessary. You probably need a pretty bare DOS setup with either HiMEM+EMM386 properly configured, or for 286 and earlier, etc something like QRAM + HIMEM + your EMS driver. You may want to load as many as your drivers high or into the b000, c800 etc regions as possible. The sample configs included should illustrate what is necessary.
(Remember, if you get a "Game mode indeterminate" error, that just means you need a doom wad in the directory)