| ??? 04/05/16 20:08 Read: times |
#190651 - Cycle variations Responding to: ???'s previous message |
Erik Malund said:
You are probably better to use a more modern Simulator, like TSim51, that shows Cycles
these thing get more and more irrelevant/imprecise since nowadays virtually every derivative has it's own cycle/instruction table. Also for some cache misses play a role. Hehe, well yes, this is something of a moving target. However, Zoltán has added a while back variant-cycle support for SiLabs and others, but the cache parts are a challenge. I am testing the cache style rules for EFM8LB1, and some code is certainly 'context dependent' - that said, it is predictable given a complex enough rule set, and mostly needs ALIGN to minimize time. Test vehicle is a VGA display, as that easily shows any errant jitter. I can get predictive and stable results, with some care, @ 72MHz The new STC8F changes the timing & coding rules yet again, but hopefully simpler. |
| Topic | Author | Date |
| AT89LP Developer Studio | 01/01/70 00:00 | |
| AT89LP Developer Studio reports Cycles | 01/01/70 00:00 | |
| (this and?) other chips | 01/01/70 00:00 | |
| Thank you, Erik, | 01/01/70 00:00 | |
| Cycle variations | 01/01/70 00:00 | |
| Thank you, Jim | 01/01/70 00:00 | |
| TSim51 Windows/Linux | 01/01/70 00:00 | |
Thank you again, Jim. | 01/01/70 00:00 |