t_stat clk_svc (UNIT *uptr)
{
if (clk_dev.flags & DEV_DIS) /* disabled? */
return SCPE_OK;
tmxr_poll = sim_rtcn_calb (CLK_TPS, TMR_CLK); /* calibrate clock */
sim_activate (&clk_unit, tmxr_poll); /* reactivate unit */
clk_cntr = clk_cntr + CLK_CNTS; /* incr counter */
if ((clk_cntr % CLK_C32MS) == 0) /* 32ms interval? */
dev_req_int (clk32ms_sbs); /* req intr */
if (clk_cntr >= CLK_C1MIN) { /* 1min interval? */
dev_req_int (clk1min_sbs); /* req intr */
clk_cntr = 0; /* reset counter */
}
return SCPE_OK;
}
t_stat tto_svc (UNIT *uptr)
{
int32 c;
t_stat r;
if (tty_buf == FIODEC_UC) /* upper case? */
tty_uc = UC;
else if (tty_buf == FIODEC_LC) /* lower case? */
tty_uc = 0;
else {
c = fiodec_to_ascii[tty_buf | tty_uc]; /* translate */
if (c && ((r = sim_putchar_s (c)) != SCPE_OK)) { /* output; error? */
sim_activate (uptr, uptr->wait); /* retry */
return ((r == SCPE_STALL)? SCPE_OK: r);
}
}
if (cpls & CPLS_TTO) { /* completion pulse? */
ios = 1; /* restart */
cpls = cpls & ~CPLS_TTO;
}
iosta = iosta | IOS_TTO; /* set flag */
dev_req_int (tto_sbs); /* req interrupt */
uptr->pos = uptr->pos + 1;
if (c == '\r') { /* cr? add lf */
sim_putchar ('\n');
uptr->pos = uptr->pos + 1;
}
return SCPE_OK;
}
t_stat tto_svc (UNIT *uptr)
{
t_stat r;
int32 c;
static const char *red_str = "[red]\r\n";
static const char *black_str = "[black]\r\n";
if (tty_buf == FIODEC_UC) /* upper case? */
tty_uc = UC;
else if (tty_buf == FIODEC_LC) /* lower case? */
tty_uc = 0;
else if (((uptr->flags & UNIT_ET) != 0) && /* ET ribbon chg? */
((tty_buf == FIODEC_BLACK) || (tty_buf == FIODEC_RED)) &&
(tty_buf != tty_ribbon)) {
tto_puts ((tty_buf == FIODEC_RED)? red_str: black_str);
tty_ribbon = tty_buf;
}
else if (tty_buf == FIODEC_CR)
tto_puts ("\r\n");
else {
c = fiodec_to_ascii[tty_buf | tty_uc]; /* translate */
if ((c != 0) && ((r = sim_putchar_s (c)) != SCPE_OK)) { /* output; error? */
sim_activate (uptr, uptr->wait); /* retry */
return ((r == SCPE_STALL)? SCPE_OK: r);
}
}
if (cpls & CPLS_TTO) { /* completion pulse? */
ios = 1; /* restart */
cpls = cpls & ~CPLS_TTO;
}
iosta = iosta | IOS_TTO; /* set flag */
dev_req_int (tto_sbs); /* req interrupt */
uptr->pos = uptr->pos + 1;
return SCPE_OK;
}
t_stat ptr_svc (UNIT *uptr)
{
int32 temp;
if ((uptr->flags & UNIT_ATT) == 0) { /* attached? */
if (ptr_wait) /* if wait, clr ioh */
ptr_wait = ioh = 0;
if ((cpls & CPLS_PTR) || ptr_stopioe)
return SCPE_UNATT;
return SCPE_OK;
}
if ((uptr->flags & UNIT_ASCII) && (ptr_state == 0)) /* ASCII mode, alpha read? */
temp = ptr_get_ascii (uptr); /* get processed char */
else if ((temp = getc (uptr->fileref)) != EOF) /* no, get raw char */
uptr->pos = uptr->pos + 1; /* if not eof, count */
if (temp == EOF) { /* end of file? */
if (ptr_wait) /* if wait, clr ioh */
ptr_wait = ioh = 0;
if (feof (uptr->fileref)) {
if ((cpls & CPLS_PTR) || ptr_stopioe)
printf ("PTR end of file\n");
else return SCPE_OK;
}
else perror ("PTR I/O error");
clearerr (uptr->fileref);
return SCPE_IOERR;
}
if (ptr_state == 0) /* alpha */
uptr->buf = temp & 0377;
else if (temp & 0200) { /* binary */
ptr_state = ptr_state - 6;
uptr->buf = uptr->buf | ((temp & 077) << ptr_state);
}
if (ptr_state == 0) { /* done? */
if (cpls & CPLS_PTR) { /* completion pulse? */
iosta = iosta & ~IOS_PTR; /* clear flag */
IO = uptr->buf; /* fill IO */
ios = 1; /* restart */
cpls = cpls & ~CPLS_PTR;
}
else { /* no, interrupt */
iosta = iosta | IOS_PTR; /* set flag */
dev_req_int (ptr_sbs); /* req interrupt */
}
}
else sim_activate (uptr, uptr->wait); /* get next char */
return SCPE_OK;
}
t_stat ptp_svc (UNIT *uptr)
{
if (cpls & CPLS_PTP) { /* completion pulse? */
ios = 1; /* restart */
cpls = cpls & ~CPLS_PTP;
}
iosta = iosta | IOS_PTP; /* set flag */
dev_req_int (ptp_sbs); /* req interrupt */
if ((uptr->flags & UNIT_ATT) == 0) /* not attached? */
return IORETURN (ptp_stopioe, SCPE_UNATT);
if (putc (uptr->buf, uptr->fileref) == EOF) { /* I/O error? */
perror ("PTP I/O error");
clearerr (uptr->fileref);
return SCPE_IOERR;
}
uptr->pos = uptr->pos + 1;
return SCPE_OK;
}
t_stat ptp_svc (UNIT *uptr)
{
int32 c;
if (cpls & CPLS_PTP) { /* completion pulse? */
ios = 1; /* restart */
cpls = cpls & ~CPLS_PTP;
}
iosta = iosta | IOS_PTP; /* set flag */
dev_req_int (ptp_sbs); /* req interrupt */
if ((uptr->flags & UNIT_ATT) == 0) /* not attached? */
return IORETURN (ptp_stopioe, SCPE_UNATT);
if ((uptr->flags & UNIT_ASCII) != 0) { /* ASCII mode? */
int32 c1 = uptr->buf & 077;
if (uptr->buf == 0) /* ignore nulls */
return SCPE_OK;
if (c1 == FIODEC_UC) { /* UC? absorb */
ptp_uc = UC;
return SCPE_OK;
}
else if (c1 == FIODEC_LC) { /* LC? absorb */
ptp_uc = 0;
return SCPE_OK;
}
else c = fiodec_to_ascii[c1 | ptp_uc];
if (c == 0)
return SCPE_OK;
if (c == '\n') { /* new line? */
putc ('\r', uptr->fileref); /* cr first */
uptr->pos = uptr->pos + 1;
}
}
else c = uptr->buf;
if (putc (c, uptr->fileref) == EOF) { /* I/O error? */
sim_perror ("PTP I/O error");
clearerr (uptr->fileref);
return SCPE_IOERR;
}
uptr->pos = uptr->pos + 1;
return SCPE_OK;
}
t_stat tti_svc (UNIT *uptr)
{
int32 in, temp;
sim_activate (uptr, uptr->wait); /* continue poll */
if (tti_hold & CW) { /* char waiting? */
tty_buf = tti_hold & TT_WIDTH; /* return char */
tti_hold = 0; /* not waiting */
}
else {
if ((temp = sim_poll_kbd ()) < SCPE_KFLAG)
return temp;
if (temp & SCPE_BREAK) /* ignore break */
return SCPE_OK;
temp = temp & 0177;
if (temp == 0177) /* rubout? bs */
temp = '\b';
sim_putchar (temp); /* echo */
if (temp == '\r') /* cr? add nl */
sim_putchar ('\n');
in = ascii_to_fiodec[temp]; /* translate char */
if (in == 0) /* no xlation? */
return SCPE_OK;
if ((in & BOTH) || ((in & UC) == (tty_uc & UC)))
tty_buf = in & TT_WIDTH;
else { /* must shift */
tty_uc = in & UC; /* new case */
tty_buf = tty_uc? FIODEC_UC: FIODEC_LC;
tti_hold = in | CW; /* set 2nd waiting */
}
}
iosta = iosta | IOS_TTI; /* set flag */
dev_req_int (tti_sbs); /* req interrupt */
PF = PF | PF_SS_1; /* set prog flag 1 */
uptr->pos = uptr->pos + 1;
return SCPE_OK;
}