| 62,7 → 62,7 |
|---|
| |
| /* Register level access functions */ |
| |
| unsigned com_read(unsigned port,unsigned reg) |
| unsigned com_read(unsigned port, unsigned reg) |
| { |
| unsigned b; |
| if (port > 3 || reg > 7) return(0); |
| 70,7 → 70,7 |
|---|
| return(b); |
| } |
| |
| void com_write(unsigned port,unsigned reg,unsigned value) |
| void com_write(unsigned port, unsigned reg, unsigned value) |
| { |
| if (port > 3 || reg > 7) return; |
| ll_out(com_base[port]+reg,value); |
| 78,10 → 78,11 |
|---|
| |
| /* Polled send/receive */ |
| |
| void com_send(unsigned port,BYTE b) |
| unsigned com_send(unsigned port, BYTE b) |
| { |
| while ((com_read(port,LSR) & 32) == 0); |
| com_write(port,THR,b); |
| return 0; |
| } |
| |
| unsigned com_receive(unsigned port) |