uint32 ptpio (DIB *dibptr, IOCYCLE signal_set, uint32 stat_data)
{
IOSIGNAL signal;
IOCYCLE working_set = IOADDSIR (signal_set); /* add ioSIR if needed */
while (working_set) {
signal = IONEXT (working_set); /* isolate next signal */
switch (signal) { /* dispatch I/O signal */
case ioCLF: /* clear flag flip-flop */
ptp.flag = ptp.flagbuf = CLEAR;
break;
case ioSTF: /* set flag flip-flop */
case ioENF: /* enable flag */
ptp.flag = ptp.flagbuf = SET;
break;
case ioSFC: /* skip if flag is clear */
setstdSKF (ptp);
break;
case ioSFS: /* skip if flag is set */
setstdSKF (ptp);
break;
case ioIOI: /* I/O data input */
if ((ptp_unit.flags & UNIT_ATT) == 0) /* not attached? */
stat_data = IORETURN (SCPE_OK, PTP_LOW); /* report as out of tape */
else
stat_data = IORETURN (SCPE_OK, 0);
break;
case ioIOO: /* I/O data output */
ptp_unit.buf = IODATA (stat_data); /* clear supplied status */
break;
case ioPOPIO: /* power-on preset to I/O */
ptp.flag = ptp.flagbuf = SET; /* set flag and flag buffer */
ptp_unit.buf = 0; /* clear output buffer */
break;
case ioCRS: /* control reset */
case ioCLC: /* clear control flip-flop */
ptp.control = CLEAR;
break;
case ioSTC: /* set control flip-flop */
ptp.control = SET;
sim_activate (&ptp_unit, ptp_unit.wait);
break;
case ioSIR: /* set interrupt request */
setstdPRL (ptp); /* set standard PRL signal */
setstdIRQ (ptp); /* set standard IRQ signal */
setstdSRQ (ptp); /* set standard SRQ signal */
break;
case ioIAK: /* interrupt acknowledge */
ptp.flagbuf = CLEAR;
break;
default: /* all other signals */
break; /* are ignored */
}
working_set = working_set & ~signal; /* remove current signal from set */
}
return stat_data;
}
uint32 lptio (DIB *dibptr, IOCYCLE signal_set, uint32 stat_data)
{
uint16 data;
IOSIGNAL signal;
IOCYCLE working_set = IOADDSIR (signal_set); /* add ioSIR if needed */
while (working_set) {
signal = IONEXT (working_set); /* isolate next signal */
switch (signal) { /* dispatch I/O signal */
case ioCLF: /* clear flag flip-flop */
lpt.flag = lpt.flagbuf = CLEAR;
break;
case ioSTF: /* set flag flip-flop */
case ioENF: /* enable flag */
lpt.flag = lpt.flagbuf = SET;
break;
case ioSFC: /* skip if flag is clear */
setstdSKF (lpt);
break;
case ioSFS: /* skip if flag is set */
setstdSKF (lpt);
break;
case ioIOI: /* I/O data input */
data = 0;
if (lpt_unit.flags & UNIT_POWEROFF) /* power off? */
data = LPT_PWROFF;
else if (!(lpt_unit.flags & UNIT_OFFLINE)) { /* online? */
if (lpt_unit.flags & UNIT_ATT) { /* paper loaded? */
data = LPT_RDY;
if (!sim_is_active (&lpt_unit)) /* printer busy? */
data = data | LPT_NBSY;
}
else if (lpt_lcnt == LPT_PAGELNT - 1) /* paper out, at BOF? */
data = LPT_PAPO;
}
stat_data = IORETURN (SCPE_OK, data); /* merge in return status */
break;
case ioIOO: /* I/O data output */
lpt_unit.buf = IODATA (stat_data) & (LPT_CTL | 0177);
break;
case ioPOPIO: /* power-on preset to I/O */
lpt.flag = lpt.flagbuf = SET; /* set flag and flag buffer */
lpt_unit.buf = 0; /* clear output buffer */
break;
case ioCRS: /* control reset */
case ioCLC: /* clear control flip-flop */
lpt.control = CLEAR;
break;
case ioSTC: /* set control flip-flop */
lpt.control = SET;
sim_activate (&lpt_unit, /* schedule op */
(lpt_unit.buf & LPT_CTL)? lpt_ptime: lpt_ctime);
break;
case ioSIR: /* set interrupt request */
setstdPRL (lpt); /* set standard PRL signal */
setstdIRQ (lpt); /* set standard IRQ signal */
setstdSRQ (lpt); /* set standard SRQ signal */
break;
case ioIAK: /* interrupt acknowledge */
lpt.flagbuf = CLEAR;
break;
default: /* all other signals */
break; /* are ignored */
}
working_set = working_set & ~signal; /* remove current signal from set */
}
return stat_data;
}
uint32 clkio (DIB *dibptr, IOCYCLE signal_set, uint32 stat_data)
{
IOSIGNAL signal;
IOCYCLE working_set = IOADDSIR (signal_set); /* add ioSIR if needed */
while (working_set) {
signal = IONEXT (working_set); /* isolate next signal */
switch (signal) { /* dispatch I/O signal */
case ioCLF: /* clear flag flip-flop */
clk.flag = clk.flagbuf = CLEAR;
break;
case ioSTF: /* set flag flip-flop */
case ioENF: /* enable flag */
clk.flag = clk.flagbuf = SET;
break;
case ioSFC: /* skip if flag is clear */
setstdSKF (clk);
break;
case ioSFS: /* skip if flag is set */
setstdSKF (clk);
break;
case ioIOI: /* I/O data input */
stat_data = IORETURN (SCPE_OK, clk_error); /* merge in return status */
break;
case ioIOO: /* I/O data output */
clk_select = IODATA (stat_data) & 07; /* save select */
sim_cancel (&clk_unit); /* stop the clock */
clk.control = CLEAR; /* clear control */
working_set = working_set | ioSIR; /* set interrupt request (IOO normally doesn't) */
break;
case ioPOPIO: /* power-on preset to I/O */
clk.flag = clk.flagbuf = SET; /* set flag and flag buffer */
break;
case ioCRS: /* control reset */
case ioCLC: /* clear control flip-flop */
clk.control = CLEAR;
sim_cancel (&clk_unit); /* deactivate unit */
break;
case ioSTC: /* set control flip-flop */
clk.control = SET;
if (clk_unit.flags & UNIT_DIAG) /* diag mode? */
clk_unit.flags = clk_unit.flags & ~UNIT_IDLE; /* not calibrated */
else
clk_unit.flags = clk_unit.flags | UNIT_IDLE; /* is calibrated */
if (!sim_is_active (&clk_unit)) { /* clock running? */
clk_tick = clk_delay (0); /* get tick count */
if ((clk_unit.flags & UNIT_DIAG) == 0) /* calibrated? */
if (clk_select == 2) /* 10 msec. interval? */
clk_tick = sync_poll (INITIAL); /* sync poll */
else
sim_rtcn_init (clk_tick, TMR_CLK); /* initialize timer */
sim_activate (&clk_unit, clk_tick); /* start clock */
clk_ctr = clk_delay (1); /* set repeat ctr */
}
clk_error = 0; /* clear error */
break;
case ioSIR: /* set interrupt request */
setstdPRL (clk); /* set standard PRL signal */
setstdIRQ (clk); /* set standard IRQ signal */
setstdSRQ (clk); /* set standard SRQ signal */
break;
case ioIAK: /* interrupt acknowledge */
clk.flagbuf = CLEAR;
break;
default: /* all other signals */
break; /* are ignored */
}
working_set = working_set & ~signal; /* remove current signal from set */
}
return stat_data;
}
uint32 ttyio (DIB *dibptr, IOCYCLE signal_set, uint32 stat_data)
{
uint16 data;
IOSIGNAL signal;
IOCYCLE working_set = IOADDSIR (signal_set); /* add ioSIR if needed */
while (working_set) {
signal = IONEXT (working_set); /* isolate next signal */
switch (signal) { /* dispatch I/O signal */
case ioCLF: /* clear flag flip-flop */
tty.flag = tty.flagbuf = CLEAR;
break;
case ioSTF: /* set flag flip-flop */
case ioENF: /* enable flag */
tty.flag = tty.flagbuf = SET;
break;
case ioSFC: /* skip if flag is clear */
setstdSKF (tty);
break;
case ioSFS: /* skip if flag is set */
setstdSKF (tty);
break;
case ioIOI: /* I/O data input */
data = (uint16) tty_buf;
if (!(tty_mode & TM_KBD) && sim_is_active (&tty_unit[TTO]))
data = data | TP_BUSY;
stat_data = IORETURN (SCPE_OK, data); /* merge in return status */
break;
case ioIOO: /* I/O data output */
data = IODATA (stat_data); /* clear supplied status */
if (data & TM_MODE)
tty_mode = data & (TM_KBD|TM_PRI|TM_PUN);
tty_buf = data & 0377;
break;
case ioCRS: /* control reset */
tty.control = CLEAR; /* clear control */
tty.flag = tty.flagbuf = SET; /* set flag and flag buffer */
tty_mode = TM_KBD; /* set tty, clear print/punch */
tty_shin = 0377; /* input inactive */
tty_lf = 0; /* no lf pending */
break;
case ioCLC: /* clear control flip-flop */
tty.control = CLEAR;
break;
case ioSTC: /* set control flip-flop */
tty.control = SET;
if (!(tty_mode & TM_KBD)) /* output? */
sim_activate (&tty_unit[TTO], tty_unit[TTO].wait);
break;
case ioSIR: /* set interrupt request */
setstdPRL (tty); /* set standard PRL signal */
setstdIRQ (tty); /* set standard IRQ signal */
setstdSRQ (tty); /* set standard SRQ signal */
break;
case ioIAK: /* interrupt acknowledge */
tty.flagbuf = CLEAR;
break;
default: /* all other signals */
break; /* are ignored */
}
working_set = working_set & ~signal; /* remove current signal from set */
}
return stat_data;
}