Computers and Technology, 19.10.2020 23:01 whitakers87
Objective: To gain experience working with memory-mapped I/O. Instructions
1. Write and test a function to draw a box on the bitmap display. The box should be roughly in the center of the screen. Draw the box one pixel at a time. Use 4 loops, one for the top, one for the right side, one for the bottom, one for the left side. Each loop writes 7 pixels per side. To make debugging easier, make the box a solid color first, then go on to step
2. Make sure that your code uses these settings: 2. Modify the draw box function to have the marquee effect by drawing each pixel in a color from an array of colors. You can use colors similar to the following:
3. Slow the marqee appearance down by adding a pause function between pixel writes, using syscall 32. Make the delay 5 ms.
4. Add keyboard functionality. You can see similar code in the bitmap sample program 2 in the GitHub. The w, a, s, and d keys should move the box up, left, right, or down one pixel. The space key should terminate the program.
Answers: 2
Computers and Technology, 22.06.2019 01:50
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Objective: To gain experience working with memory-mapped I/O. Instructions
1. Write and test a func...
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