topic T4240 DFloat calculated performance in T-Series https://community.nxp.com/t5/T-Series/T4240-DFloat-calculated-performance/m-p/688397#M2142 <HTML><HEAD></HEAD><BODY><P>Which document has a description of the floating point capability index for the T4240 Processor?</P></BODY></HTML> Mon, 22 May 2017 10:53:05 GMT sunzhengyu 2017-05-22T10:53:05Z T4240 DFloat calculated performance https://community.nxp.com/t5/T-Series/T4240-DFloat-calculated-performance/m-p/688397#M2142 <HTML><HEAD></HEAD><BODY><P>Which document has a description of the floating point capability index for the T4240 Processor?</P></BODY></HTML> Mon, 22 May 2017 10:53:05 GMT https://community.nxp.com/t5/T-Series/T4240-DFloat-calculated-performance/m-p/688397#M2142 sunzhengyu 2017-05-22T10:53:05Z Re: T4240 DFloat calculated performance https://community.nxp.com/t5/T-Series/T4240-DFloat-calculated-performance/m-p/688398#M2143 <HTML><HEAD></HEAD><BODY><P>Please look e6500 Core Reference Manual, Chapter 10 "Execution Timing"</P><P>Table 10-4 shows "instruction latencies". In this table you can see two columns - "latency" and "repeat time". For example, for floating point multiply instruction "fmul" there will be 1 and 7. This means each instruction takes 7 clocks, but you can issue these instructions one-by-one at every clock in pipelined mode and have a result at every cycle.</P><P></P><P>Direct link to e6500 Core Reference Manual:</P><P></P><P><A class="link-titled" href="http://www.nxp.com/assets/documents/data/en/reference-manuals/E6500RM.pdf" title="http://www.nxp.com/assets/documents/data/en/reference-manuals/E6500RM.pdf">http://www.nxp.com/assets/documents/data/en/reference-manuals/E6500RM.pdf</A>&nbsp;</P><P><BR />Have a great day,<BR />Alexander<BR />TIC</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Thu, 25 May 2017 07:08:48 GMT https://community.nxp.com/t5/T-Series/T4240-DFloat-calculated-performance/m-p/688398#M2143 alexander_yakov 2017-05-25T07:08:48Z