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DC11: set bit 7 of RCSR when byte was received

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folkert van heusden 2024-04-30 10:50:02 +02:00
parent 22b43f25b3
commit b4a3ce363c
Signed by untrusted user who does not match committer: folkert
GPG key ID: 6B6455EDFEED3BD1
1 changed files with 9 additions and 3 deletions
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12
dc11.cpp
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@ -129,10 +129,12 @@ void dc11::operator()()
for(int k=0; k<rc; k++) for(int k=0; k<rc; k++)
recv_buffers[line_nr].push_back(buffer[k]); recv_buffers[line_nr].push_back(buffer[k]);
have_data[line_nr].notify_all(); registers[line_nr * 4 + 0] |= 128; // DONE: bit 7
if (registers[line_nr * 4] & 64) // interrupts enabled? if (registers[line_nr * 4 + 0] & 64) // interrupts enabled?
trigger_interrupt(line_nr); trigger_interrupt(line_nr);
have_data[line_nr].notify_all();
} }
} }
@ -185,12 +187,16 @@ uint16_t dc11::read_word(const uint16_t addr)
// get oldest byte in buffer // get oldest byte in buffer
if (recv_buffers[line_nr].empty() == false) { if (recv_buffers[line_nr].empty() == false) {
vtemp = *recv_buffers[line_nr].begin(); vtemp = *recv_buffers[line_nr].begin();
printf("return: %d\n", vtemp);
recv_buffers[line_nr].erase(recv_buffers[line_nr].begin()); recv_buffers[line_nr].erase(recv_buffers[line_nr].begin());
// still data in buffer? generate interrupt // still data in buffer? generate interrupt
if (recv_buffers[line_nr].empty() == false && (registers[line_nr * 4] & 64)) if (recv_buffers[line_nr].empty() == false && (registers[line_nr * 4] & 64)) {
registers[line_nr * 4 + 0] |= 128; // DONE: bit 7
trigger_interrupt(line_nr); trigger_interrupt(line_nr);
}
} }
} }