File:FPGARetrocomputing.jpg
原始文件 (1,895 × 2,166像素,文件大小:942 KB,MIME类型:image/jpeg)
说明
描述FPGARetrocomputing.jpg |
Freshly compiled OTHELLO.C Once upon a time in prehistoric days of personal computing, Robert Halstead of MIT wrote a game of Othello in C programming language. In late 1978, Leor Zolman really wanted to play that game on his micro but couldn't, he had to write a C compiler first. The compiler he wrote became known as BDS C -- one of the most widely known and influential C compilers of the 8-bit era. In the fall of 2007 I really wanted to run a few old games and demos for an awesome but mostly forgotten computer called Vector-06C and, disappointed by the state of existing software emulators, created my own hardware implementation. Reverse engineered without a complete circuit diagram, with scarce documentation, tested by software written for the original computer it has fancy graphics and it plays music. But I find its role as a historical link the most fascinating. Recreated in 2008 for want of a demo, using a compiler written in 1979 for want of an Othello game, running the game from mid-70's on a 21st century FPGA, here it is. Looking not very impressive but with a kind heart, this is an entirely free and open source project. It utilizes approximately 30% of EP2C20 FPGA on Altera DE1 development board, fully recreating a 8080-based computer that was popular in the former Soviet Union in late 80's to mid-90's. It's worth noting that unlike many other Soviet-era designs this computer was truly original, borrowing very little from any other computer of the time. Other projects created for, or ported to the DE1 kit include at least a couple of ZX Spectrum clones, FPGApple: an Apple ][ recreation, Minimig: the Amiga clone, One-Chip MSX, and new projects keep emerging. vector06cc project URL: http://code.google.com/p/vector06cc/ |
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日期 | |||
来源 | originally posted to Flickr as FPGA Retrocomputing | ||
作者 | Viacheslav Slavinsky | ||
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当前 | 2017年10月17日 (二) 06:49 | 1,895 × 2,166(942 KB) | VortBot(留言 | 贡献) | Uploading higher resolution from Flickr | |
2008年7月16日 (三) 22:08 | 896 × 1,024(426 KB) | Flickr upload bot(留言 | 贡献) | Uploaded from http://flickr.com/photo/68931440@N00/2300464299 using Flickr upload bot |
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相机制造商 | SONY |
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相机型号 | DSC-V1 |
曝光时间 | 1/2秒(0.5) |
光圈值 | f/4.5 |
感光度(ISO) | 100 |
数据生成日期时间 | 2008年3月1日 (六) 02:58 |
镜头焦距 | 18.1毫米 |
作者 | Picasa 2.7 |
方向 | 0 |
水平分辨率 | 72 dpi |
垂直分辨率 | 72 dpi |
使用软件 | Picasa 3.0 |
文件修改日期时间 | 2008年3月1日 (六) 02:58 |
亮度(Y)和色度(C)位置 | 重叠 |
曝光程序 | 手动 |
Exif版本 | 2.2 |
数字化日期时间 | 2008年3月1日 (六) 02:58 |
每个色彩组分意义 |
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图像压缩模式 | 4 |
APEX曝光补偿 | 0 |
最大光圈 | 3 APEX(f/2.83) |
测光模式 | 中心加权平均 |
光源 | 钨丝灯(白炽灯) |
闪光灯 | 闪光灯未点亮 |
支持的Flashpix版本 | 1 |
色彩空间 | 未标定 |
文件来源 | 数码相机 |
场景类型 | 直接拍摄的图像 |
自订图像处理 | 普通处理 |
曝光模式 | 手动曝光 |
白平衡 | 手动白平衡 |
场景拍摄类型 | 标准 |
唯一图像ID | a2ee9aff2e8ab2739c422070060208db |