mirror of https://github.com/ArduPilot/ardupilot
52 lines
1.3 KiB
Plaintext
52 lines
1.3 KiB
Plaintext
Type sizes:
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char : 1
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short : 2
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int : 2
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long : 4
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long long : 8
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bool : 1
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void* : 2
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Operation timings:
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Note: timings for some operations are very data dependent
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nop 0.07 usec/call
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cli/sei 0.14 usec/call
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micros() 3.04 usec/call
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millis() 1.34 usec/call
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fadd 8.68 usec/call
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fsub 8.74 usec/call
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fmul 7.21 usec/call
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fdiv 7.21 usec/call
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dadd 8.68 usec/call
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dsub 8.74 usec/call
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dmul 5.64 usec/call
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ddiv 5.57 usec/call
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sin() 114.10 usec/call
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cos() 103.03 usec/call
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tan() 147.92 usec/call
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iadd8 0.48 usec/call
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isub8 0.48 usec/call
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imul8 0.67 usec/call
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idiv8 12.93 usec/call
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iadd16 0.92 usec/call
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isub16 0.92 usec/call
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imul16 1.48 usec/call
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idiv16 13.24 usec/call
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iadd32 1.80 usec/call
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isub32 1.80 usec/call
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imul32 4.57 usec/call
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idiv32 37.71 usec/call
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memcpy128 56.76 usec/call
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memset128 49.71 usec/call
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delay(1) 1005.14 usec/call
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Additional notes:
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eeprom_read_byte: 2 usec/call
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eeprom_write_byte: first call costs 5 usec, each subsequent byte
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costs 3480 usec as it waits for the EEPROM to be
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ready from the previous byte
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pgm_read_byte: 0.5 usec per byte
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