| ??? 10/25/05 00:45 Read: times |
#102872 - Qui? Responding to: ???'s previous message |
"A "true" multitasking cpu, one that can execute more than one instruction at once. A true multitasking CPU? Would that be: 1. a CPU running a multitasking OS? Say an 8088 running Minix 1.0. 2. A CPU with hardware support for a multitasking OS, perhaps a MMU, fancy hardware context switching support, seperate FPU. Example: SPARC v7 circa 1988. 3. A superscalar multi-issue CPU with pipelining, multiple ALU's, FPU etc... capable of issuing 2 or more instructions per clock cycle. Example: SuperSPARC circa 1993, late 90's Pentiums. 4. A hyperthreaded superscalar/multi-issue CPU like the current Intel Xeon. 5. A multi-core superscalar multi-issue CPU like the AMD Opterons and UltraSPARC IV+. (I think Intel has something cooking here too...) 6. A massively multi-core superscalar multi-issue CPU like Niagra. Then there's threaded programs on shared memory multiprocessor systems, NUMA... etc... Which "multitasking"? Does a running WDT count? While I'm thinking about it... Does anyone remember Steve Ciarcia building a parallel 8052 machine for cryptography in Circuit Cellar (Byte magazine) in the mid-80's? I seem to remember something about it, but I can't remember any details, and Byte didn't survive the 90's, so there's no online archive to search that I'm aware of. Rob |
| 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 |