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Mode X test

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Jeff Parsons 2015-07-06 16:18:27 -07:00
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@ -25,37 +25,56 @@ Development of PCjs VGA support has just begun (June 2015), so don't expect ever
List of VGA Samples from [Michael Abrash's Graphics Programming Black Book](https://github.com/jeffpar/abrash-black-book):
* [Chapter 23](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-23.md)
* [Chapter 23: Bones and Sinew](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-23.md)
* [L23-1.ASM: Animates four balls bouncing around a playfield by using page flipping and panning](L23-1.ASM)
* [Chapter 24](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-24.md)
* [Chapter 24: Parallel Processing with the VGA](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-24.md)
* [L24-1.ASM: Illustrates operation of ALUs and latches of the VGA's Graphics Controller](L24-1.ASM)
* [Chapter 25](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-25.md)
* [Chapter 25: VGA Data Machinery](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-25.md)
* [L25-1.ASM: Illustrates operation of data rotate and bit mask features of Graphics Controller](L25-1.ASM)
* [L25-2.ASM: Illustrates operation of Map Mask register when drawing to memory that already contains data](L25-2.ASM)
* [L25-3.ASM: Illustrates operation of set/reset circuitry to force setting of memory that already contains data](L25-3.ASM)
* [L25-4.ASM: Illustrates operation of set/reset circuitry in conjunction with CPU data](L25-4.ASM)
* [Chapter 26](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-26.md)
* [Chapter 26: VGA Write Mode 3](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-26.md)
* [L26-1.ASM: Illustrates operation of write mode 3 of the VGA](L26-1.ASM)
* [L26-2.ASM: Illustrates high-speed text-drawing operation of write mode 3 of the VGA](L26-2.ASM)
* [Chapter 27](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-27.md)
* [Chapter 27: Yet Another VGA Write Mode](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-27.md)
* [L27-1.ASM: Illustrates one use of write mode 2 of the VGA and EGA by animating the image of an "A"](L27-1.ASM)
* [L27-2.ASM: Illustrates one use of write mode 2 of the VGA and EGA by drawing lines in color patterns](L27-2.ASM)
* [L27-3.ASM: Illustrates flipping from bit-mapped graphics mode to text mode and back](L27-3.ASM)
* [Chapter 28](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-28.md)
* [Chapter 28: Reading VGA Memory](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-28.md)
* [L28-1.ASM: Illustrates the use of the Read Map register in read mode 0](L28-1.ASM)
* [L28-2.ASM: Illustrates use of read mode 1 (color compare mode) to detect collisions in display memory](L28-2.ASM)
* [L28-3.ASM: Illustrates the use of Color Don't Care to support fast read-modify-write operations](L28-3.ASM)
* [Chapter 29](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-29.md)
* [Chapter 29: Saving Screens and Other VGA Mysteries](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-29.md)
* [L29-1.ASM: Puts up a mode 10h EGA graphics screen, then saves it to the file SNAPSHOT.SCR](L29-1.ASM)
* [L29-2.ASM: Restores a mode 10h EGA graphics screen from the file SNAPSHOT.SCR](L29-2.ASM)
* [L29-3.ASM: Illustrates the color mapping capabilities of the EGA's palette registers](L29-3.ASM)
* [L29-4.ASM: Demonstrates screen blanking via bit 5 of the Attribute Controller Index register](L29-4.ASM)
* [Chapter 30](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-30.md)
* [Chapter 30: Video Est Omnis Divisa](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-30.md)
* [L30-1.ASM: Demonstrates the VGA/EGA split screen in action](L30-1.ASM)
* [L30-2.ASM: Demonstrates the interaction of the split screen and horizontal pel panning](L30-2.ASM)
* [Chapter 31](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-31.md)
* [Chapter 31: Higher 256-Color Resolution on the VGA](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-31.md)
* [L31-1.ASM: Demonstrates pixel drawing in 320x400 256-color mode on the VGA](L31-1.ASM)
* [L31-2.ASM: Demonstrate the two pages available in 320x400 256-color modes on a VGA](L31-2.ASM)
* [L31-2.ASM: Demonstrates the two pages available in 320x400 256-color modes on a VGA](L31-2.ASM)
* [Chapter 32: Be It Resolved: 360x480](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-32.md)
* [L32-1.ASM: Illustrates VGA line drawing in 360x480 256-color mode](L32-1.ASM)
* [L32-2.C: Sample program to illustrate VGA line drawing in 360x480 256-color mode](L32-2.C)
* [Chapter 33: Yogi Bear and Eurythmics Confront VGA Colors](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-33.md)
* [L33-1.ASM: Demonstrates use of the DAC registers by selecting a smoothly contiguous set of 256 colors](L33-1.ASM)
* [Chapter 34: Changing Colors without Writing Pixels](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-34.md)
* [L34-1.ASM: Fills a band across the screen with vertical bars in all 256 attributes](L34-1.ASM)
* [Chapter 35: Bresenham Is Fast, and Fast Is Good](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-35.md)
* [L35-1.C: C implementation of Bresenham's line drawing algorithm](L35-1.C)
* [L35-2.C: Sample program to illustrate EGA/VGA line drawing routines](L35-2.C)
* [L35-3.ASM: Fast assembler implementation of Bresenham's line drawing algorithm](L35-3.ASM)
* [Chapter 47: Mode X: 256-Color VGA Magic](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-35.md)
* [L47-1.ASM: Mode X (320x240, 256 colors) mode set routine](L47-1.ASM)
* [L47-2.ASM: Mode X (320x240, 256 colors) write pixel routine](L47-2.ASM)
* [L47-3.ASM: Mode X (320x240, 256 colors) read pixel routine](L47-3.ASM)
* [L47-4.ASM: Mode X (320x240, 256 colors) rectangle fill routine (slow)](L47-4.ASM)
* [L47-5.ASM: Mode X (320x240, 256 colors) rectangle fill routine (medium)](L47-5.ASM)
* [L47-6.ASM: Mode X (320x240, 256 colors) rectangle fill routine (fast)](L47-6.ASM)
* [L47-7.C: Program to demonstrate mode X (320x240, 256-colors) rectangle fill](L47-7.C)
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