#include #include #include int main() { char string[] = "333.txt"; uint8_t buf[128] = {0}; char tips_str[] = "The first application 'init.bin' started successfully!\n"; put_string(tips_str, COLOR_GREEN, COLOR_BLACK); int fd = open(string, 0); read(fd, buf, 128); put_string(buf, COLOR_ORANGE, COLOR_BLACK); lseek(fd, 0, SEEK_SET); write(fd, tips_str, sizeof(tips_str)-1); lseek(fd, 0, SEEK_SET); // 由于暂时没有实现用户态的memset,因此先手动清零 for(int i=0;i<128;++i) buf[i] = 0; read(fd, buf, 128); put_string(buf, COLOR_YELLOW, COLOR_BLACK); close(fd); pid_t p = fork(); if(p == 0) put_string("subproc\n", COLOR_PURPLE, COLOR_BLACK); else put_string("parent proc\n", COLOR_ORANGE, COLOR_BLACK); while (1) ; }