PaulStoffregen
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SPI.h
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| // When the clock is known at compiletime, use this if-then-else | // When the clock is known at compiletime, use this if-then-else | ||||
| // cascade, which the compiler knows how to completely optimize | // cascade, which the compiler knows how to completely optimize | ||||
| // away. When clock is not know, use a loop instead, which generates | |||||
| // away. When clock is not known, use a loop instead, which generates | |||||
| // shorter code. | // shorter code. | ||||
| if (__builtin_constant_p(clock)) { | if (__builtin_constant_p(clock)) { | ||||
| if (clock >= F_CPU / 2) { | if (clock >= F_CPU / 2) { |
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