| ??? 04/07/15 22:35 Read: times |
#190460 - 'creativity' Responding to: ???'s previous message |
Andy Neil said:
Note that the full quote is, "the DQ8051 Dhrystone score rates at 29.01x the original at the same frequency"
.. Yes, there is some 'creativity' involved as I see their IP has many extensions, of Multiple DPTR with Auto-INC and Auto-Switch, and they also mention MDU32 and even floating point - but they omit to show any opcode timings, or show the impact of the quad-pipeline on JUMPS. Usually the more you pipeline, the worse branches get, and I've yet to see a 8051 core design that is properly clever in handling JNB SFR.Bit,$ which could be coded to be 1 cycle granular, after the 3 byte fetch. |
| Topic | Author | Date |
| "New 8051 IP core is 29X faster than original" | 01/01/70 00:00 | |
| if this is not gobbelygook, then | 01/01/70 00:00 | |
| That's benchmark scores for you | 01/01/70 00:00 | |
| 'creativity' | 01/01/70 00:00 | |
| 26.85x | 01/01/70 00:00 | |
| Maybe I don't understand their claim ... | 01/01/70 00:00 | |
| How about the power? | 01/01/70 00:00 | |
| From DCD's DQ8051 product page.. | 01/01/70 00:00 | |
| VAX MIPS | 01/01/70 00:00 | |
| MIPS | 01/01/70 00:00 | |
order of magnitude | 01/01/70 00:00 |