sim/ppc/hw_com.c

44    includes an interrupt line, input and output fifos, and status
47    Independent configuration of the devices input and output streams is
87    output-file = <file-name> (optional)
89    File to send all output to (instead of the simulation console).
99    output-buffering = "unbuffered" (optional)
102    devices output stream (all data is immediately written).  In the future,
113    output-delay = <integer-delay> (optional)
116    the empty output fifo that the fifo finishes draining.  Any
117    characters written to the output fifo before it has drained will
131    and both the input and output streams will use the simulation console
144    takes its input from the file <</etc/passwd>> while its output is
151    port's input (<</etc/passwd>>) to its output (the console).
163    This model does not attempt to model the '550's input and output fifos.
165    while the output fifo is effectivly infinite.  Consequently, unlike the
166    '550, this device will not discard output characters once a stream of 16
167    have been written to the data output register.
169    The input and output can only be taken from a file (or the current
198   com_port output;
211   if (com->output.file != NULL)
212     fclose(com->output.file);
218   com->output.delay = (device_find_property(me, "output-delay") != NULL
219 		       ? device_find_integer_property(me, "output-delay")
237   if (device_find_property(me, "output-file") != NULL) {
238     const char *output_file = device_find_string_property(me, "output-file");
239     com->output.file = fopen(output_file, "w");
240     if (com->output.file == NULL)
241       device_error(me, "Problem opening output file %s\n", output_file);
242     if (device_find_property(me, "output-buffering") != NULL) {
243       const char *buffering = device_find_string_property(me, "output-buffering");
245 	setbuf(com->output.file, NULL);
252   com->output.ready = 1;
263   com->output.interrupting = (com->output.ready && (com->reg[1] & 0x2));
265 		  || com->output.interrupting
344       else if (com->output.interrupting)
358 	    | (com->output.ready ? 0x60 : 0)
401   com->output.ready = 1;
423     if (com->output.file == NULL) {
427       fwrite(&val, 1, 1, com->output.file);
430     if (com->output.ready && com->output.delay > 0) {
431       com->output.ready = 0;
432       device_event_queue_schedule(me, com->output.delay, make_write_ready, me);
492   if (com->output.file == NULL)
495     return fwrite(buf, 1, len, com->output.file);