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C Code Benchmarks - FAE Training September 2000

C Code Benchmarks - FAE Training September 2000. C Code Benchmarks. Nine applications Based on customer code Various application areas Byte usage in individual applications Summarized results reported as Normalized Accumulated Results Averaged Normalized Results. Comments.

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C Code Benchmarks - FAE Training September 2000

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  1. C Code Benchmarks- FAE Training September 2000 CONFIDENTIAL

  2. C Code Benchmarks • Nine applications • Based on customer code • Various application areas • Byte usage in individual applications • Summarized results reported as • Normalized Accumulated Results • Averaged Normalized Results CONFIDENTIAL

  3. Comments • Support our claims of code efficiency • All code could be compiled for all compilers • Indexes relative to AVR • All code written for different architecture, no modifications done • All compilers from IAR (except ARM/Thumb) • EDN Embedded Microprocessor Benchmark Consortiumm CONFIDENTIAL

  4. Reed-Solomon • Reed-Solomon Encoder/Decoder CONFIDENTIAL

  5. Car Radio Control • Skeleton application • Control Flow and Bitfields CONFIDENTIAL

  6. C Bitfields • Benchmark code from customer • 8 and 16 bit bitfield variables CONFIDENTIAL

  7. Accumulated over all Benchmarks • Indexes based on accumulated sizes • Large applications counts more than small CONFIDENTIAL

  8. Normalized over all Benchmarks • Averaged indexes from all applications • All applications counts evenly CONFIDENTIAL

  9. Summary • Nine C Code Benchmarks from various application areas • No single microcontroller best for all applications • AVR in the top range for all the applications CONFIDENTIAL

  10. Compilers Used • AVR: IAR ICCA90 version 1.40 • 80C51: IAR ICC8051 version 5.20 • Thumb: ARM tcc version 1.02b • ARM: ARM armcc version 4.66b • 80196: IAR icc196 version 5.20a • Z80: IAR iccz80 version 4.03a • H8/300(H): IAR icch83 version 3.22 • H8/500: IAR icch8500 version 2.92g • 68HC11: IAR icc6811 version 4.20B • PIC: IAR iccpic version 1.11A CONFIDENTIAL

  11. Thermal Printer -34% CODE and we used C…... • PIC16C74 replaced with AT904434 • PIC assembly code • Code size: 3364 Words = 5887 bytes • AVR code written in “C” • Code size: 3896 bytes • AVR winning features • Faster printing due to improved speed • Reduced cost by integrating EEPROM • Enhanced code control and maintenance due to C code. CONFIDENTIAL

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