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flags update & initialization of client fds fix

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This commit is contained in:
folkert van heusden 2024-04-30 13:12:51 +02:00
parent b4a3ce363c
commit 9d70c419c0
Signed by untrusted user who does not match committer: folkert
GPG key ID: 6B6455EDFEED3BD1
1 changed files with 21 additions and 19 deletions
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40
dc11.cpp
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@ -45,7 +45,7 @@ void dc11::operator()()
for(int i=0; i<dc11_n_lines; i++) {
// client session
pfds[dc11_n_lines + i].fd = socket(AF_INET, SOCK_STREAM, 0);
pfds[dc11_n_lines + i].fd = -1;
pfds[dc11_n_lines + i].events = POLLIN;
// listen on port
@ -117,7 +117,7 @@ void dc11::operator()()
char buffer[32] { };
int rc = read(pfds[i].fd, buffer, sizeof buffer);
if (rc <= 0) { // closed or error?
DOLOG(info, false, "Failed reading on port %d", i - dc11_n_lines + 1);
DOLOG(info, false, "Failed reading from port %d", i - dc11_n_lines + 1);
close(pfds[i].fd);
pfds[i].fd = -1;
}
@ -137,19 +137,6 @@ void dc11::operator()()
have_data[line_nr].notify_all();
}
}
// emulate DTR, CTS & READY
for(int i=0; i<dc11_n_lines; i++) {
registers[i * 4 + 0] &= ~1; // DTR: bit 0
registers[i * 4 + 2] &= ~2; // CTS: bit 1
registers[i * 4 + 2] &= ~128; // READY: bit 7
if (pfds[i + dc11_n_lines].fd != -1) {
registers[i * 4 + 0] |= 1;
registers[i * 4 + 2] |= 2;
registers[i * 4 + 2] |= 128;
}
}
}
DOLOG(info, true, "DC11 thread terminating");
@ -179,6 +166,21 @@ uint16_t dc11::read_word(const uint16_t addr)
int reg = (addr - DC11_BASE) / 2;
int line_nr = reg / 4;
// emulate DTR, CTS & READY
for(int i=0; i<dc11_n_lines; i++) {
registers[i * 4 + 0] &= ~1; // DTR: bit 0
registers[i * 4 + 0] &= ~4; // CD : bit 2
registers[i * 4 + 2] &= ~2; // CTS: bit 1
registers[i * 4 + 2] &= ~128; // READY: bit 7
if (pfds[i + dc11_n_lines].fd != -1) {
registers[i * 4 + 0] |= 1;
registers[i * 4 + 0] |= 4;
registers[i * 4 + 2] |= 2;
registers[i * 4 + 2] |= 128;
}
}
uint16_t vtemp = registers[reg];
if ((reg & 3) == 1) { // read data register
@ -200,8 +202,8 @@ uint16_t dc11::read_word(const uint16_t addr)
}
}
DOLOG(debug, true, "DC11: read register %06o (%d): %06o", addr, reg, vtemp);
printf("DC11: read register %06o (%d): %06o\r\n", addr, reg, vtemp);
DOLOG(debug, true, "DC11: read register %06o (%d line %d): %06o", addr, reg, line_nr, vtemp);
printf("DC11: read register %06o (%d line %d): %06o\r\n", addr, reg, line_nr, vtemp);
return vtemp;
}
@ -227,8 +229,8 @@ void dc11::write_word(const uint16_t addr, uint16_t v)
int reg = (addr - DC11_BASE) / 2;
int line_nr = reg / 4;
DOLOG(debug, true, "DC11: write register %06o (%d) to %06o", addr, reg, v);
printf("DC11: write register %06o (%d) to %06o\r\n", addr, reg, v);
DOLOG(debug, true, "DC11: write register %06o (%d line_nr %d) to %06o", addr, reg, line_nr, v);
printf("DC11: write register %06o (%d line_nr %d) to %06o\r\n", addr, reg, line_nr, v);
if ((reg & 3) == 3) { // transmit buffer
char c = v;