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- TEST0D Version 1.0
-
- There has been some talk about the graphics function
- 0Dh, not working properly. This is the function to read a pixel
- and return it's value. I read a message that someone left
- saying that it always returned a value of 2Eh.
-
- This program is an attempt to isolate the problem. This
- program will set the screen mode to 5 (graphics 320 x 200) and
- write at location 10,10 first a 0, then a 1. Each time it will
- read in the results. After it turns on the pixel, it will
- pause, giving you a chance to see that the pixel is on. Press
- any key and the screen will clear and the results will be
- displayed. The results should be 00 01, the 00 being the read
- of the 0 pixel, and the 01 being the read of the 1 pixel.
-
- My Portfolio is version 1.052, and the program runs correctly.
-
- If you do not get the correct results, you can use a
- patch, FIX0D. This is a TSR which will intercept the INT10h
- pixel read and directly access the graphics memory to obtain a
- bit's value.
-
-
- Bug Reports or Comments to :
-
- BJ Gleason
- Thin Air Research
- B-607
- 1600 South Joyce Street
- Arlington, VA 22202
-
- Compuserve : 73337,2011
- Genie : BJGLEASON
-
- This program is placed in the public domain.
- ə