CSE A215 Assembly Language Programming for Engineers

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1 CSE A215 Assembly Language Programming for Engineers Lecture 1 - Introduction August 28, 2012 Sam Siewert

Sam Siewert UC Berkeley National Research University,

Private, Aerospace/Mechanical Johnson Space Center, U.

Gov t Labs, Start-Ups, Computer Science 1985-89 1989-92

Aerospace/Mechanical, Computer Science, Computer

2 Sam Siewert UC Berkeley National Research University, Philosophy/Physics University of Notre Dame, BS - Private, Aerospace/Mechanical Johnson Space Center, U. of Houston UHCL Computer Engineering, National R&D Center, Mission Control Center U. of Colorado, Boulder, MS/PhD Growing Research University, Gov t Labs, Start-Ups, Computer Science Interdisciplinary Teaching & Research Aerospace/Mechanical, Computer Science, Computer Engineering CU Boulder Senior Instructor, Adjunct Professor CTO, Architect, Developer/Engineer 1992-today Sam Siewert 2

3 Related Industry Background General Experience (~24 Years in Embedded and Scalable Systems) Presently with CU and Trellis-Logic LLC (Founder) Intel Architecture Group (Atom, Scalable Cloud Solutions) CTO at Atrato Inc., a Digital Media Storage Start-up in Broomfield Consulting with Numerous Digital Media Firms 12 Years NASA JSC, NASA JPL / CU, NASA JPL / Ball Aerospace 12 Years Commercial Telecomm, Storage/Networks, Embedded, Digital Video Machine Vision Spitzer Space Telescope Sky-scan Mosaics, Super-resolution, Peak- Up Optical Navigation JPL Robotics at CU-Boulder Computer Graphics Integrated Graphics and Digital Video (On-going Research) GIS and Telemetry Video Overlay Digital Media Real-Time Digital Video Frame Transformation (1080p, 60Hz), Color Enhancement Commercial Contract (On-going) Sam Siewert 3

4 Course Description Organization and operation of a computer's processor, including registers, I/O and control. Assembly language programming with emphasis placed on engineering applications and design using ARM/Linux SoC architecture. Labs will be Linux Beagle xm ARM SoC Based Sam Siewert 4

5 Course Topics Basic Computer Organization Hardware/Software Interface Compilers and Binutils for ASM ARM ASM Sam Siewert 5

6 Why Not? Why? Not Much Code is Written in ASM (Too Tedius, Modern Options like C/C++ and VHLLs Much Quicker) Compiler Code Generation is Mostly Trusted Lack of Portability Hard to Maintain Why? High Level Language Code Generation not Optimal Compiler Code Generation Bugs Hand Tuned AMS Will Always be Most Efficient Great Way to Learn about Computer Architecture and Organization Sam Siewert 6

7 How We ll Do It 1/3 Theory Lectures/Reading (On-going) Lectures Readings from Computer Organization and Design 1/3 Practice Linux Labs Linux Coding (C and ASM) GNU GCC and Binutils GAS 1/3 In Depth Study of an Application Performance Optimization of Code Using ASM Compiler Code Generation Analysis Sam Siewert 7

8 Linux Desktop Options Native Linux Installation Ubuntu Using Amazon Free Micro-Instances Requires a Credit Card Account with Amazon Can Do Spot-Instance Bids for Large Nodes and Clusters Can Do Spot-Instance Bids for GPGPU Nodes Virtual-Box Ubuntu Installation Sam Siewert 8

9 Linux Embedded Options Beagle xm with Angstrom or Ubuntu Linux Micro SD Card Sam Siewert 9

10 Introductions Instructor (Office Hours) Students (Introductions) Administrivia UAA Blackboard Course Information Text: Computer Organization and Design; The Hardware/Software Interface, David A. Patterson, John L. Hennessy list (please sign up on sheet being passed around) Lecture Notes and Labs on UAA Blackboard System (please do not read more than one week ahead) Machine Vision, Graphics, Digital Media Terminology QUIZ Personal Lab You MUST Have Native Linux, VB Linux, or Amazon Micro-instance of Linux Either using your own Laptop Or Using Amazon Micro-instance UAA Beagle xm Linux Lab Sam Siewert 10

11 Final Project! You will Optimize C Code Comparing GCC code generation to hand tuned and written ASM for ARM Make use of ISA features (E.g. conditional execution) Sam Siewert 11

12 GCC and Binutils Introduction Session August 24, 2004 Sam Siewert

13 Simple Code Example C code Compiled with -S Option Disassembly with Objdump Simple ASM insertion in C code IBM Paper on Disassembly and Performance Sam Siewert 13

14 Lab #0 Analyze and Explain Mixed-mode C/ASM code and How ASM maps to C code Compile with -O0, -O1, and -O2 and compare Can you write ASM that is more optimal? Sam Siewert 14

CS A490 Machine Vision and Computer Graphics

CS A490 Machine Vision and Computer Graphics Lecture 1 - Introduction August 28, 2012 Sam Siewert Sam Siewert UC Berkeley National Research University, Philosophy/Physics 1984-85 University of Notre Dame,