| ??? 10/23/05 05:17 Read: times |
#102778 - Predko Video Responding to: ???'s previous message |
Jeff,
I've got the Predko book, haven't been to his site in a while. The video described in his book (which was a contributing inspiration for my work) is extremely low resolution TEXT Mode monochrome using a video modulator. Also it had no provision for I/O. You had to ROM the 4 char by 4 char line presentation data. He max'd his DS'520 doing it as well. The ongoing work is baseband NTSC, monochrome, 256x192, resulting in a square addressable pixel. This is due to the DS'420 and its reduced cycle instructions, clock multiplier, the enhanced DPTR capability, and a very different algorithm. Keep in mind the platform model is not an 8052 PC-compatible. Instead, it's simple but contemporary hardware and software technology implementing a "package" like the pre-PC platforms of old. Maybe you remember them, the ones that were "fun". regards, p |
| Topic | Author | Date |
| 8051 8-bit computer | 01/01/70 00:00 | |
| (or z80) | 01/01/70 00:00 | |
| 8051 computer | 01/01/70 00:00 | |
| I never cringe on a "fun exercise" I do, | 01/01/70 00:00 | |
| awesome? | 01/01/70 00:00 | |
| Computer | 01/01/70 00:00 | |
| 8051 Computer. | 01/01/70 00:00 | |
| Minor corrections | 01/01/70 00:00 | |
| 11MHz? | 01/01/70 00:00 | |
| Not sure | 01/01/70 00:00 | |
| Congratulations | 01/01/70 00:00 | |
| Actually it's teh same | 01/01/70 00:00 | |
| 11MHz | 01/01/70 00:00 | |
| Re: 8051 computer | 01/01/70 00:00 | |
| Just us | 01/01/70 00:00 | |
| Project Team | 01/01/70 00:00 | |
| me tried | 01/01/70 00:00 | |
| thoughts on project | 01/01/70 00:00 | |
| What is a true multitasking controller? | 01/01/70 00:00 | |
| multitasking controller | 01/01/70 00:00 | |
| video | 01/01/70 00:00 | |
| continued.. | 01/01/70 00:00 | |
| continued.. | 01/01/70 00:00 | |
| I don't think so | 01/01/70 00:00 | |
| color display? | 01/01/70 00:00 | |
| Predko Video | 01/01/70 00:00 | |
| yes | 01/01/70 00:00 | |
| video, timing, speeds etc. | 01/01/70 00:00 | |
| Video Timing. | 01/01/70 00:00 | |
| 6.2MHz pixel clock? | 01/01/70 00:00 | |
| Pixel Clock | 01/01/70 00:00 | |
| pix clock | 01/01/70 00:00 | |
| overclocking | 01/01/70 00:00 | |
| pad pixels | 01/01/70 00:00 | |
| just a suggestion | 01/01/70 00:00 | |
| Speed | 01/01/70 00:00 | |
| DS'4x0 | 01/01/70 00:00 | |
| DIP / surface mount | 01/01/70 00:00 | |
| a 100MHz chip in a perf board? methinks | 01/01/70 00:00 | |
| Hardware multitasking | 01/01/70 00:00 | |
| Multitasking redefined | 01/01/70 00:00 | |
| Misplaced self belief... | 01/01/70 00:00 | |
| Daunting? | 01/01/70 00:00 | |
| breadboarded | 01/01/70 00:00 | |
| TRS-80 | 01/01/70 00:00 | |
| TRS80? | 01/01/70 00:00 | |
| in the beginning there was .. | 01/01/70 00:00 | |
| TRS-80 Info | 01/01/70 00:00 | |
| Man those were the days. | 01/01/70 00:00 | |
| That fast? | 01/01/70 00:00 | |
| More retroinfo | 01/01/70 00:00 | |
| TRS-80 forward speed. | 01/01/70 00:00 | |
| Like I said, It was a long time ago | 01/01/70 00:00 | |
| hrm | 01/01/70 00:00 | |
| TRS80 model 1 speed... | 01/01/70 00:00 | |
| TRS80 | 01/01/70 00:00 | |
| You think? | 01/01/70 00:00 | |
| OK so both | 01/01/70 00:00 | |
| No pictures yet | 01/01/70 00:00 | |
| Video Capture Card? | 01/01/70 00:00 | |
| Nope | 01/01/70 00:00 | |
| video output | 01/01/70 00:00 | |
| Qui? | 01/01/70 00:00 | |
| Multitasking | 01/01/70 00:00 | |
| Real Time and Multi Tasking | 01/01/70 00:00 | |
| Maybe whomever has "no idea what I'm tal | 01/01/70 00:00 | |
It's probably at least fast enough ... | 01/01/70 00:00 |