Miscellaneous utility functions

Functions
void	or1k_report (unsigned long int value)
unsigned long int	or1k_rand (void)
void	or1k_uart_set_read_cb (void(*cb)(char c))

Detailed Description

Function Documentation

unsigned long int or1k_rand

(

void

)

Get (pseudo) random number

This should return pseudo-random numbers, based on a Galois LFSR.

Returns

(Pseudo) Random number

void or1k_report

(

unsigned long int

value

)

Report value to simulator

Uses the built-in simulator functionality.

Parameters

value

Value to report

void or1k_uart_set_read_cb

(

void(*)(char c)

cb

)

Register UART callback

This function sets a callback function that is called when a character is received via UART. The callback function has no return and a gets the character as parameter. When a character is received, the function is called.

Example (UART echo):

void uart_in(char c) {
  printf("%c", c); // Echo
}

int main() {
  or1k_uart_set_read_cb(&uart_in);
  or1k_interrupts_enable();

  while (1) {}
}