/[gxemul]/trunk/src/devices/dev_ns16550.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
ViewVC logotype

Diff of /trunk/src/devices/dev_ns16550.c

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 31 by dpavlin, Mon Oct 8 16:19:56 2007 UTC revision 32 by dpavlin, Mon Oct 8 16:20:58 2007 UTC
# Line 25  Line 25 
25   *  SUCH DAMAGE.   *  SUCH DAMAGE.
26   *     *  
27   *   *
28   *  $Id: dev_ns16550.c,v 1.54 2006/04/06 18:08:42 debug Exp $   *  $Id: dev_ns16550.c,v 1.55 2006/10/27 13:12:21 debug Exp $
29   *     *  
30   *  NS16550 serial controller.   *  NS16550 serial controller.
31   *   *
# Line 72  struct ns_data { Line 72  struct ns_data {
72  };  };
73    
74    
75  /*  DEVICE_TICK(ns16550)
  *  dev_ns16550_tick():  
  *  
  *  This function is called at regular intervals. An interrupt is caused to the  
  *  CPU if there is a character available for reading, or if the transmitter  
  *  slot is empty (i.e. the ns16550 is ready to transmit).  
  */  
 void dev_ns16550_tick(struct cpu *cpu, void *extra)  
76  {  {
77            /*
78             *  This function is called at regular intervals. An interrupt is
79             *  asserted if there is a character available for reading, or if the
80             *  transmitter slot is empty (i.e. the ns16550 is ready to transmit).
81             */
82          struct ns_data *d = extra;          struct ns_data *d = extra;
83    
84          d->reg[com_iir] &= ~IIR_RXRDY;          d->reg[com_iir] &= ~IIR_RXRDY;
Legend:
Removed from v.31  
changed lines
  Added in v.32
  ViewVC Help
Powered by ViewVC 1.1.26