sim/ppc/hw_glue.c

41    Glue devices have a variable number of big endian <<output>>
45    Writing a value to an output register causes an interrupt (of the
46    specified level) to be driven on the devices corresponding output
49    Reading an <<output>> register returns either the last value
55    <<glue>>: In addition to driving its output interrupt port with any
57    corresponding <<output>> register.  Such input interrupts, however,
58    are not propogated to an output interrupt port.
61    and then both stored in <<output>> register zero and propogated to
62    output interrupt output port zero.
92    output interrupt ports.
106    Wire the AND device up to the sink so that the and's output is not
117    |  unsigned *output = (void*)0xf0030000;
121    |  ans = ntohl(*output);
162   /* our output registers */
166   int *output;
179   /* establish the output registers */
180   if (glue->output != NULL) {
181     memset(glue->output, 0, glue->sizeof_output);
205     glue->output = zalloc(glue->sizeof_output);
260   *(unsigned_word*)dest = H2BE_4(glue->output[reg]);
262 		reg, (unsigned long) addr, glue->output[reg]));
282   glue->output[reg] = H2BE_4(*(unsigned_word*)source);
284 		reg, (unsigned long) addr, glue->output[reg]));
285   device_interrupt_event(me, reg, glue->output[reg], processor, cia);
308       glue->output[port] = level;
316     glue->output[0] = glue->input[0];
318       glue->output[0] &= glue->input[i];
319     DTRACE(glue, ("and - interrupt %d, level %d arrived - output %d\n",
320 		  my_port, level, glue->output[0]));
321     device_interrupt_event(me, 0, glue->output[0], processor, cia);