| Line 104... |
Line 104... |
while (1) {
|
while (1) {
|
|
|
int u = 0, cell = 0, n = 0;
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int u = 0, cell = 0, n = 0;
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int x, y;
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int x, y;
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int trng_available = 0;
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int trng_available = 0;
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uint16_t trng_data;
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uint8_t trng_data;
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|
|
|
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// initialize universe
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// initialize universe
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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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| Line 121... |
Line 121... |
neorv32_uart_printf("You can pause/restart the simulation by pressing any key.\n");
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neorv32_uart_printf("You can pause/restart the simulation by pressing any key.\n");
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|
|
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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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uint16_t trng_tap_config = neorv32_trng_find_tap_mask();
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neorv32_uart_printf("\nTRNG detected. Using TRNG for universe initialization.\n");
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neorv32_trng_setup(trng_tap_config);
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neorv32_trng_enable();
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neorv32_uart_printf("\nTRNG detected (tap mask 0x%x). Using TRNG for universe initialization.\n", (uint32_t)trng_tap_config);
|
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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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|
|
|
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// randomize until key pressed
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// randomize until key pressed
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| Line 138... |
Line 137... |
|
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// initialize universe using random data
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// initialize universe using random data
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for (x=0; x<NUM_CELLS_X/8; x++) {
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for (x=0; x<NUM_CELLS_X/8; x++) {
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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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if (trng_available) {
|
if (trng_available) {
|
if (neorv32_trng_get(&trng_data)) {
|
while (1) {
|
neorv32_uart_printf("TRNG error!\n");
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int err = neorv32_trng_get(&trng_data);
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return 1;
|
if (err) {
|
|
neorv32_uart_printf("TRNG error (%i)! Restarting TRNG...\n", err);
|
|
continue;
|
|
}
|
|
else {
|
|
break;
|
|
}
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}
|
}
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universe[0][x][y] = (uint8_t)trng_data; // use data from TRNG
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universe[0][x][y] = trng_data; // use data from TRNG
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}
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}
|
else {
|
else {
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universe[0][x][y] = (uint8_t)xorshift32(); // use data from PRNG
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universe[0][x][y] = (uint8_t)xorshift32(); // use data from PRNG
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}
|
}
|
}
|
}
|
