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- November 30, 1987
-
- In a fit of generosity I've included the source code to the the
- initialization routine (since it is so IBM-PC specific I thought
- it would be useful for development on other systems.)
-
- wn_init also contains most of the global variables, so be careful.
- (see globals.h.)
-
-
- December 1, 1987
-
- Added a snowfree DMA mode which is somewhat faster than using
- BIOS. Set 'method' = DMA, 'snowfree' = TRUE, and 'snowspeed'
- = about 140. The problem is that this mode is somewhat finicky
- you need to set snowspeed to a value which is less than the total
- number of characters that you can output during the video trace,
- 140 (2 bytes per character, or 70 characters) seems to be about
- right, but you'll have to experiment. Also, any byte by byte
- video output, like vs_printf is very slow -- use wn_suspendw on
- the front and backend to suppress byte by byte output to the
- physical screen (if you want to speed it up.)