- float a;
- for (uint32_t i = 0; i < 1000000; i++)
- {
- a = 123.4 * 456.7;
- }
stm32f407zgt6 @168MHz 关闭FPU 119ms
stm32f407zgt6 @168MHz 开启FPU 24ms
esp32 c3 @160MHz 38ms
esp32 s3 @160MHz 50ms
esp32 s3 @240MHz 33ms
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