2023-01-27 12:44:22 <mahk        > crc: i successed in half way, https://0x0.st/oFjZ.png
2023-01-27 12:45:02 <mahk        > in TOS==1 part,  `if (c <= 0) {printf(".");return;}`
2023-01-27 12:45:44 <mahk        > i am trying to handle exit(0) with return but it stills consuming data as i see
2023-01-27 12:58:35 <mahk        > yay, i solved, https://0x0.st/oFju.png
2023-01-27 13:15:26 <crc         > I think if returning rather than an exit, something needs to be pushed to the stack (as this is expected to return a character code). In the couple of instances I've not used a keyboard, I had it return 32 (ASCII space) if nothing was in my input backlog.
2023-01-27 14:51:47 <mahk        > inst_ii is the last instruction?
2023-01-27 16:55:25 <crc         > yes