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 21. Keil Toolchain Optimization Comparison—sim3u1xx_Blinky Debug

Library

µVision MicroLIB -O0

µVision MicroLIB -O0

(with Optimize for Time)

µVision MicroLIB -O1

µVision MicroLIB -O1

(with Optimize for Time)

µVision MicroLIB -O2

µVision MicroLIB -O2

(with Optimize for Time)

µVision MicroLIB -O3

µVision MicroLIB -O3

(with Optimize for Time)

Code (bytes)

2068

2068

Read Only

Data (bytes)

296

296

Read-Write

Data (bytes)

24

24

Zero-Initialized

Data (bytes)

1536

1536

1704

296

1648

296

20

1536

20

1536

1616

296

1600

296

20

1536

20

1536

1604

296

1596

296

20

1536

20

1536

Table 22. Keil Toolchain Optimization Comparison—demo_si32UsbAudio Debug

Library

µVision MicroLIB -O0

µVision MicroLIB -O0

(with Optimize for Time)

µVision MicroLIB -O1

µVision MicroLIB -O1

(with Optimize for Time)

µVision MicroLIB -O2

µVision MicroLIB -O2

(with Optimize for Time)

µVision MicroLIB -O3

µVision MicroLIB -O3

(with Optimize for Time)

Code (bytes)

47264

47264

Read Only

Data (bytes)

3832

3832

Read-Write

Data (bytes)

5208

5208

Zero-Initialized

Data (bytes)

17972

17972

38816

39924

3832

3832

5132

5132

17952

17952

36540

39840

3832

3832

5132

5132

17952

17952

36468

41532

3832

3832

5132

5132

17952

17952

Rev. 0.1

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