Ready for Input : 無料・フリー素材/写真
Ready for Input / funnypolynomial
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | Fully assembled and powered on. The LED indicates that the INPUT register is being displayed, pressing the 8 buttons on the left will toggle the corresponding bits and LEDs. The four contol buttons provide for setting the address, reading/writing memory etc.Once assembled and fully functional, I got back to programming, horay! The KENBAK-1 CPU defined several NO-OP op-codes, I took one of them, 360 (octal) as an escape to system extensions like providing a random number, delaying for a specified number of milliseconds and reading the real-time clock. I also wrote 8 predefined programs 0: Simple counter 1: Pattern 2: Counting Clock 3: BCD Clock 4: Binary Clock 5: Das Blinken Lights 6: Sieve of Eratosthenes 7: Set RTCI wanted the Kenbakuino to serve a purpose, I wanted to be able to leave it running, showing the time. As a test I implemented the famous Sieve which calculates and displays the primes less than 255. I had forgotten how hard it is to write assembly language! Even harder without a real assember.As well as the run-time extensions, available via the special 0360 NO-OP op-code, additional features are available via special button "chords" on the front panel. For example holding STOP and pressing Bit-N loads predefined program #N above. Holding Bit-N and pressing STOP sets the CPU speed to 2^Nms, etc. |
| 撮影日 | 2011-09-10 16:46:40 |
| 撮影者 | funnypolynomial , New Zealand |
| タグ | |
| 撮影地 | |
| カメラ | Canon PowerShot A495 , Canon |
| 露出 | 0.01 sec (1/100) |
| 開放F値 | f/3.0 |
| 焦点距離 | 6639.004149 dpi |