| Line 85... |
Line 85... |
* @return 0 if execution was successful
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* @return 0 if execution was successful
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**************************************************************************/
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**************************************************************************/
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int main(void) {
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int main(void) {
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// check if UART unit is implemented at all
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// check if UART unit is implemented at all
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if (neorv32_uart_available() == 0) {
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if (neorv32_uart0_available() == 0) {
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return 1;
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return 1;
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}
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}
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// capture all exceptions and give debug info via UART
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// capture all exceptions and give debug info via UART
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// this is not required, but keeps us safe
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// this is not required, but keeps us safe
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neorv32_rte_setup();
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neorv32_rte_setup();
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// init UART at default baud rate, no parity bits, ho hw flow control
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// init UART at default baud rate, no parity bits, ho hw flow control
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neorv32_uart_setup(BAUD_RATE, PARITY_NONE, FLOW_CONTROL_NONE);
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neorv32_uart0_setup(BAUD_RATE, PARITY_NONE, FLOW_CONTROL_NONE);
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// check available hardware extensions and compare with compiler flags
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// check available hardware extensions and compare with compiler flags
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neorv32_rte_check_isa(0); // silent = 0 -> show message if isa mismatch
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neorv32_rte_check_isa(0); // silent = 0 -> show message if isa mismatch
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| Line 116... |
Line 116... |
uint32_t generation = 0;
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uint32_t generation = 0;
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clear_universe(0);
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clear_universe(0);
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clear_universe(1);
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clear_universe(1);
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// intro
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// intro
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neorv32_uart_printf("\n\n<<< Conways's Game of Life >>>\n\n");
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neorv32_uart0_printf("\n\n<<< Conways's Game of Life >>>\n\n");
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neorv32_uart_printf("This program requires a terminal resolution of at least %ux%u characters.\n", NUM_CELLS_X+2, NUM_CELLS_Y+3);
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neorv32_uart0_printf("This program requires a terminal resolution of at least %ux%u characters.\n", NUM_CELLS_X+2, NUM_CELLS_Y+3);
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neorv32_uart_printf("Press any key to start a random-initialized torus-style universe of %ux%u cells.\n", NUM_CELLS_X, NUM_CELLS_Y);
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neorv32_uart0_printf("Press any key to start a random-initialized torus-style universe of %ux%u cells.\n", NUM_CELLS_X, NUM_CELLS_Y);
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neorv32_uart_printf("You can pause/restart the simulation by pressing any key.\n");
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neorv32_uart0_printf("You can pause/restart the simulation by pressing any key.\n");
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// check if TRNG was synthesized
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// check if TRNG was synthesized
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if (neorv32_trng_available()) {
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if (neorv32_trng_available()) {
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neorv32_uart_printf("\nTRNG detected. Using TRNG for universe initialization.\n");
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neorv32_uart0_printf("\nTRNG detected. Using TRNG for universe initialization.\n");
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neorv32_trng_enable();
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neorv32_trng_enable();
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trng_available = 1;
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trng_available = 1;
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}
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}
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// randomize until key pressed
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// randomize until key pressed
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while (neorv32_uart_char_received() == 0) {
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while (neorv32_uart0_char_received() == 0) {
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xorshift32();
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xorshift32();
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}
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}
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// initialize universe using random data
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// initialize universe using random data
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| Line 143... |
Line 143... |
for (y=0; y<NUM_CELLS_Y; y++) {
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for (y=0; y<NUM_CELLS_Y; y++) {
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if (trng_available) {
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if (trng_available) {
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while (1) {
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while (1) {
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int err = neorv32_trng_get(&trng_data);
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int err = neorv32_trng_get(&trng_data);
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if (err) {
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if (err) {
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neorv32_uart_printf("TRNG error (%i)! Restarting TRNG...\n", err);
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neorv32_uart0_printf("TRNG error (%i)! Restarting TRNG...\n", err);
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continue;
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continue;
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}
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}
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else {
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else {
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break;
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break;
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}
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}
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| Line 162... |
Line 162... |
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while(1) {
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while(1) {
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// user abort?
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// user abort?
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if (neorv32_uart_char_received()) {
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if (neorv32_uart0_char_received()) {
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neorv32_uart_printf("\nRestart (y/n)?");
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neorv32_uart0_printf("\nRestart (y/n)?");
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if (neorv32_uart_getc() == 'y') {
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if (neorv32_uart0_getc() == 'y') {
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break;
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break;
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}
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}
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}
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}
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// print generation, population count and the current universe
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// print generation, population count and the current universe
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neorv32_uart_printf("\n\nGeneration %u: %u/%u living cells\n", (uint32_t)generation, (uint32_t)pop_count(u), NUM_CELLS_X*NUM_CELLS_Y);
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neorv32_uart0_printf("\n\nGeneration %u: %u/%u living cells\n", (uint32_t)generation, (uint32_t)pop_count(u), NUM_CELLS_X*NUM_CELLS_Y);
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print_universe(u);
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print_universe(u);
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// compute next generation
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// compute next generation
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clear_universe((u + 1) & 1);
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clear_universe((u + 1) & 1);
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| Line 214... |
Line 214... |
**************************************************************************/
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**************************************************************************/
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void print_universe(int u){
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void print_universe(int u){
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|
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int16_t x, y;
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int16_t x, y;
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neorv32_uart_putc('+');
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neorv32_uart0_putc('+');
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for (x=0; x<NUM_CELLS_X; x++) {
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for (x=0; x<NUM_CELLS_X; x++) {
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neorv32_uart_putc('-');
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neorv32_uart0_putc('-');
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}
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}
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neorv32_uart_putc('+');
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neorv32_uart0_putc('+');
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neorv32_uart_putc('\r');
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neorv32_uart0_putc('\r');
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neorv32_uart_putc('\n');
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neorv32_uart0_putc('\n');
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for (y=0; y<NUM_CELLS_Y; y++) {
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for (y=0; y<NUM_CELLS_Y; y++) {
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neorv32_uart_putc('|');
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neorv32_uart0_putc('|');
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for (x=0; x<NUM_CELLS_X; x++) {
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for (x=0; x<NUM_CELLS_X; x++) {
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if (get_cell(u, x, y))
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if (get_cell(u, x, y))
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neorv32_uart_putc((char)CELL_ALIVE);
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neorv32_uart0_putc((char)CELL_ALIVE);
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else
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else
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neorv32_uart_putc((char)CELL_DEAD);
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neorv32_uart0_putc((char)CELL_DEAD);
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}
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}
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// end of line
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// end of line
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neorv32_uart_putc('|');
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neorv32_uart0_putc('|');
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neorv32_uart_putc('\r');
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neorv32_uart0_putc('\r');
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neorv32_uart_putc('\n');
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neorv32_uart0_putc('\n');
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}
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}
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|
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neorv32_uart_putc('+');
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neorv32_uart0_putc('+');
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for (x=0; x<NUM_CELLS_X; x++) {
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for (x=0; x<NUM_CELLS_X; x++) {
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neorv32_uart_putc('-');
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neorv32_uart0_putc('-');
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}
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}
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neorv32_uart_putc('+');
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neorv32_uart0_putc('+');
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}
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}
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/**********************************************************************//**
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/**********************************************************************//**
|
* Kill all cells in universe.
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* Kill all cells in universe.
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