mirror of
https://github.com/Michaelangel007/6502_linux_logo.git
synced 2024-06-01 13:41:35 +00:00
64 lines
2.2 KiB
Markdown
64 lines
2.2 KiB
Markdown
|
|
# 6502 Linux Logo
|
|
|
|
Linux Logo in 6502 assembly language.
|
|
|
|
Size: 696 ($2B8) bytes
|
|
|
|
|
|
# Screenshots
|
|
|
|
![Apple \]\[ ](pics/linux_logo_2.png)
|
|
![Apple \]\[+](pics/linux_logo_2plus.png)
|
|
|
|
|
|
|
|
|
|
# Features
|
|
|
|
* Detects Apple \]\[, \]\[+, //e, //e+, //c, //c+
|
|
* Pretty-print model instead of generic "II_" (bloats from 696 but worth it.)
|
|
* Detects 48K/64K/128K
|
|
* System out all uppercase (for Apple \]\[ without lowercase)
|
|
* Cleaned up fugly logo by Albert Lai
|
|
* Width is now 70 chars to be exact 4 pixels/char for 280 HGR resolution
|
|
* Bit-packed Logo takes up 210 bytes (2 bits/char) compared to 80*12 = 960 byte
|
|
* X is now symmetrical
|
|
* Fixed L,i,n kerning
|
|
* Fixed x Penguin kerning
|
|
* Fixed L to fit
|
|
* Chopped off 2 columns of penguin to fit 70 chars
|
|
* Expands 2 bits to 4 bits = 2 pixels (70 chars * 4 bits = 280 px)
|
|
|
|
```
|
|
..........................................................#####.......
|
|
.........................................................#######......
|
|
...............@.........................................## # ##......
|
|
######........@@#........................................#QQQQQ#......
|
|
..##...........#.......................................##..QQQ..##....
|
|
..##.......@@@..###.####...###....###..#####.#####....#..........##...
|
|
..##......@..@#..###....##..##.....##....##...##.....#............##..
|
|
..##.....@...@#..##.....##..##.....##.....##.##......#............###.
|
|
..##........@@#..##.....##..##.....##......###......QQ#...........##Q.
|
|
..##.....#.@@#...##.....##..##.....##.....##.##....QQQQQ#.......#QQQQQ
|
|
..##....##.@@#.#.##.....##..###...###....##...##...QQQQQQ#.....#QQQQQQ
|
|
##########..###.####...####...####.###.#####.#####..QQQQQ#######QQQQQ.
|
|
```
|
|
|
|
See: [ascii2hgr2bit](ascii2hgr2bit.c) for packing ASCII to 2 bits/char.
|
|
NOTE: PackedLen isn't needed if full 40 bytes HGR width is unpacked to.
|
|
|
|
Inspired from non-optimized version. Size: 1,573 ($625) bytes
|
|
* https://github.com/deater/linux_logo
|
|
|
|
![Apple \]\[+](pics/ll_6502_2plus.png)
|
|
|
|
|
|
|
|
# License
|
|
|
|
[WTFPl](http://www.wtfpl.net/)
|
|
|
|
If you use code, please provide a comment link so people can follow it for updates.
|
|
|