main.c File Reference

Example program showing how to use the CFU's custom instructions. More...

#include <neorv32.h>

Macros
#define	madd_lo(a, b, c)   neorv32_cfu_r4_instr(0b000, a, b, c)
#define	madd_hi(a, b, c)   neorv32_cfu_r4_instr(0b001, a, b, c)
User configuration
#define	BAUD_RATE   19200
#define	TESTCASES   4

Functions
uint32_t	xorshift32 (void)
int	main ()

Detailed Description

Example program showing how to use the CFU's custom instructions.

Author

Stephan Nolting

Note

Take a look at the highly-commented "hardware-counterpart" of this CFU example in 'rtl/core/neorv32_cpu_cp_cfu.vhd'.

Macro Definition Documentation

BAUD_RATE

#define BAUD_RATE   19200

UART BAUD rate

TESTCASES

#define TESTCASES   4

Number of test cases per CFU instruction

Function Documentation

main()

int main

(

void

)

Main function

Note

This program requires the CFU and UART0.

Returns

0 if execution was successful

xorshift32()

uint32_t xorshift32

(

void

)

Pseudo-random number generator (to generate deterministic test data).

Returns

Random data (32-bit).