Assembly language instruction set for nRF51

[nordicdev]

Hi, I would like to use assembly language instructions for the following piece of code:

nrf_gpio_cfg_output(PIN_EN_BSTR);

for(int i=0;i<NUMBER_OF_SHORT_PULSES_TO_TURN_BSTR_ON;i++)

{

	nrf_gpio_pin_clear(PIN_EN_BSTR);

	nrf_gpio_pin_set(PIN_EN_BSTR);

	nrf_delay_us(OFF_PERIOD_OF_SHORT_BSTR_PULSE);

}

nrf_gpio_pin_clear(PIN_EN_BSTR); 

Where can I find the assembly language instruction set and examples for it? Thanks.

[nordicdev]

Please refer to :devzone.nordicsemi.com/.../ to find out the reason for me to go to assemly. Basically, the same code above has different delays at different compiler optimisation levels. Even if I dont have any delay and just the turning on and off of gpio pins have different delays in the loop at different optimisation levels.