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RISCY BUSINESS»Episode Guide
Dhrystone
References ▼
RISCY BUSINESS
Learning about circuits
[1]0:52[7]9:06
Falstad
Circuit Simulator Applet
[2]2:14[5]5:39
SiFve
HiFive1 Schematics
[3]2:14
SiFive Forums
The Big RISCY BUSINESS Question Thread
[4]4:33[6]5:39
SiFive Developers
SiFive HiFive1 Getting Started Guide
[8]16:24
ARM
Dhrystone and MIPs performance of ARM processors
[9]26:20
Wikipedia
Dhrystone
[10]26:20
Roy Longbotom's PC Benchmark Collection
Dhrystone Benchmark Results On PCs
[11]26:20
Wikipedia
Comparison of programming languages (array)
[12]49:47
GitHub
stb/​stb_sprintf.h
[13]1:03:46
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profiling
timing
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Credits
Host
Neo Ar
Indexer
Matt Mascarenhas
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0:08Recap and set the stage for the day
0:08Recap and set the stage for the day
0:08Recap and set the stage for the day
0:52Consult Croepha's forum post 'Learning about circuits'1
0:52Consult Croepha's forum post 'Learning about circuits'1
0:52Consult Croepha's forum post 'Learning about circuits'1
2:14Try to model a single LED in the Falstad Circuit Simulator2 in conjunction with the HiFive1 Schematics3
2:14Try to model a single LED in the Falstad Circuit Simulator2 in conjunction with the HiFive1 Schematics3
2:14Try to model a single LED in the Falstad Circuit Simulator2 in conjunction with the HiFive1 Schematics3
4:33Let Croepha know of his citation in the Big RISCY BUSINESS Question Thread4
4:33Let Croepha know of his citation in the Big RISCY BUSINESS Question Thread4
4:33Let Croepha know of his citation in the Big RISCY BUSINESS Question Thread4
5:25croepha Under draw there is 1 terminal voltage source and a ground
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5:25croepha Under draw there is 1 terminal voltage source and a ground
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5:25croepha Under draw there is 1 terminal voltage source and a ground
🗪
5:39Continue modeling an LED5,6
5:39Continue modeling an LED5,6
5:39Continue modeling an LED5,6
9:06Consult the further replies to 'Learning about circuits'7
9:06Consult the further replies to 'Learning about circuits'7
9:06Consult the further replies to 'Learning about circuits'7
9:41croephas The ground in your simulation is simplified, but is effectively what you have when you have OE=1 and XOR=1
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9:41croephas The ground in your simulation is simplified, but is effectively what you have when you have OE=1 and XOR=1
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9:41croephas The ground in your simulation is simplified, but is effectively what you have when you have OE=1 and XOR=1
🗪
10:15Determine to check out other demos and update the Freedom E SDK
10:15Determine to check out other demos and update the Freedom E SDK
10:15Determine to check out other demos and update the Freedom E SDK
11:10Embark on studying the Dhrystone demo, in dhry.h
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11:10Embark on studying the Dhrystone demo, in dhry.h
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11:10Embark on studying the Dhrystone demo, in dhry.h
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16:24Refresh our memory on how to build and upload to the HiFive18
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16:24Refresh our memory on how to build and upload to the HiFive18
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16:24Refresh our memory on how to build and upload to the HiFive18
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19:15Build the Dhrystone demo and upload it to the HiFive1
19:15Build the Dhrystone demo and upload it to the HiFive1
19:15Build the Dhrystone demo and upload it to the HiFive1
20:45Run the Dhrystone Benchmark, Version 2.1
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20:45Run the Dhrystone Benchmark, Version 2.1
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20:45Run the Dhrystone Benchmark, Version 2.1
🏃
21:48Start to read dhry_1.c while the Dhrystone Benchmark (presumably) crunches away in the background
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21:48Start to read dhry_1.c while the Dhrystone Benchmark (presumably) crunches away in the background
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21:48Start to read dhry_1.c while the Dhrystone Benchmark (presumably) crunches away in the background
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23:15Consult the output of the Dhrystone Benchmark
23:15Consult the output of the Dhrystone Benchmark
23:15Consult the output of the Dhrystone Benchmark
24:43croepha Alright take care, I have to run. Thanks for streaming
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24:43croepha Alright take care, I have to run. Thanks for streaming
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24:43croepha Alright take care, I have to run. Thanks for streaming
🗪
24:48Continue consulting the Dhrystone output and scan the SiFive forums for information on the benchmark
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24:48Continue consulting the Dhrystone output and scan the SiFive forums for information on the benchmark
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24:48Continue consulting the Dhrystone output and scan the SiFive forums for information on the benchmark
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26:20Consult ARM,9 Wikipedia10 and Roy Longbotom's PC Benchmark Collection11 for some pointers towards interpreting the Dhrystone benchmark
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26:20Consult ARM,9 Wikipedia10 and Roy Longbotom's PC Benchmark Collection11 for some pointers towards interpreting the Dhrystone benchmark
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26:20Consult ARM,9 Wikipedia10 and Roy Longbotom's PC Benchmark Collection11 for some pointers towards interpreting the Dhrystone benchmark
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30:21Continue studying dhry_1.c
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30:21Continue studying dhry_1.c
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30:21Continue studying dhry_1.c
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40:25Express interest in seeing the code generation for working with floating point
40:25Express interest in seeing the code generation for working with floating point
40:25Express interest in seeing the code generation for working with floating point
41:37Continue studying dhry_1.c from main()
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41:37Continue studying dhry_1.c from main()
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41:37Continue studying dhry_1.c from main()
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46:19Note that this is very non-descriptive code
46:19Note that this is very non-descriptive code
46:19Note that this is very non-descriptive code
47:18Continue reading the initialisation code in dhry_1.c
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47:18Continue reading the initialisation code in dhry_1.c
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47:18Continue reading the initialisation code in dhry_1.c
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48:38Read the timing code in dhry_1.c
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48:38Read the timing code in dhry_1.c
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48:38Read the timing code in dhry_1.c
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49:47Consult the internet for 1-indexed programming languages12
49:47Consult the internet for 1-indexed programming languages12
49:47Consult the internet for 1-indexed programming languages12
52:44Continue reading the timing code in dhry_1.c
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52:44Continue reading the timing code in dhry_1.c
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52:44Continue reading the timing code in dhry_1.c
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56:54Read the interpretation and printing code in dhry_1.c
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56:54Read the interpretation and printing code in dhry_1.c
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56:54Read the interpretation and printing code in dhry_1.c
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58:42Read through the procedures in dhry_1.c
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58:42Read through the procedures in dhry_1.c
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58:42Read through the procedures in dhry_1.c
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59:24Scan through the remaining files in the Dhrystone demo
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59:24Scan through the remaining files in the Dhrystone demo
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59:24Scan through the remaining files in the Dhrystone demo
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1:01:14Read time() in dhry_stubs.c
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1:01:14Read time() in dhry_stubs.c
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1:01:14Read time() in dhry_stubs.c
📖
1:01:53Scan through dhry.h and Makefile to find that we are using -DTIME as the timing method
1:01:53Scan through dhry.h and Makefile to find that we are using -DTIME as the timing method
1:01:53Scan through dhry.h and Makefile to find that we are using -DTIME as the timing method
1:02:52That's everything, with thoughts that this demo is uninteresting
1:02:52That's everything, with thoughts that this demo is uninteresting
1:02:52That's everything, with thoughts that this demo is uninteresting
1:03:46Shout-out to Jeff Roberts' printf13
1:03:46Shout-out to Jeff Roberts' printf13
1:03:46Shout-out to Jeff Roberts' printf13
1:04:58Glimpse into the future of what we may try and glean from this Dhrystone demo
1:04:58Glimpse into the future of what we may try and glean from this Dhrystone demo
1:04:58Glimpse into the future of what we may try and glean from this Dhrystone demo