#include "tb_cxxrtl_io.h" #include volatile uint32_t scratch[2]; int main() { scratch[0] = 0; tb_puts("Initial value: 0\n"); for (int i = 1; i <= 10; ++i) { uint32_t fetched; asm volatile ( "amoadd.w %0, %1, (%2)\n" : "=r" (fetched) : "r" (i), "r" (&scratch[0]) ); tb_printf("amoadd.w rd, %d, (&addr) -> fetched %d\n", i, fetched); } tb_printf("Final value: %d\n", scratch[0]); return 0; }