AN720 データシートの表示（PDF） - Silicon Laboratories

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AN720

PRECISION32 OPTIMIZATIONCONSIDERATIONS FOR CODESIZE ANDSPEED

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AN720

Table 16. Keil Toolchain Library Usage Comparison—demo_si32UsbAudio Debug

Library

µVision standard

µVision MicroLIB

Code (bytes)

51176

47264

Read Only Data

(bytes)

4388

3832

Read-Write Data

(bytes)

5196

5208

Zero-Initialized

Data (bytes)

18068

17972

Table 17. Keil Toolchain Library Usage Comparison—CoreMark Debug Size

Library

µVision standard

µVision MicroLIB

Code (bytes)

13860

11276

Read Only Data

(bytes)

868

636

Read-Write Data

(bytes)

156

156

Zero-Initialized

Data (bytes)

3632

3536

Table 18. Keil Toolchain Library Usage Comparison—CoreMark Debug Speed

Library

µVision standard

µVision MicroLIB

CoreMark Score

CoreMark 1.0 : 65.602324/ARM4.2 (EDG gcc mode) Iterations=3000/STACK

CoreMark 1.0 : 69.402323/ARM4.2 (EDG gcc mode) Iterations=3000/STACK

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Rev. 0.1

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