df6475181c
1. New Features 1.1 GRI-909 - This is a new simulator for the GRI-909. - It has been hand-tested; so far, no software has been discovered. 1.2 VAX - SET CPU CONHALT will cause a HALT instruction to return to the boot ROM console rather than to SIMH. SET CPU SIMHALT restores the default behavior. - BRB/W self at IPL 1F stops the simulator. This is the default behavior of VMS at exit. 1.3 PDP-18b - ATTACH -A PTR/PTP attaches the reader and punch in ASCII mode. In ASCII mode, the reader automatically sets the high order bit of incoming alphabetic data, and the punch clears the high order bit of outgoing data. 1.4 SCP - DO -V echoes commands from the file as they are executed. - Under Windows, execution priority is set BELOW_NORMAL when the simulator is running. 2. Release Notes 2.1 Bugs Fixed - PDP-11 CPU: fixed updating of MMR0 on a memory management error. - VAX FPA: changed function names to avoid conflict with C math library. - 1401 MT: read end of record generates group mark without word mark. - 1401 DP: fixed address generation and checking. - SCP: an EXIT within a DO command will cause the simulator to exit. 3. In Progress - Interdata 16b/32b: coded, not tested. - SDS 940: coded, not tested. - IBM 1620: coded, not tested. If you would like to help with the debugging of the untested simulators, they can be made available by special request.
203 lines
6.3 KiB
C
203 lines
6.3 KiB
C
/* nova_pt.c: NOVA paper tape read/punch simulator
|
||
|
||
Copyright (c) 1993-2002, Robert M. Supnik
|
||
|
||
Permission is hereby granted, free of charge, to any person obtaining a
|
||
copy of this software and associated documentation files (the "Software"),
|
||
to deal in the Software without restriction, including without limitation
|
||
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||
and/or sell copies of the Software, and to permit persons to whom the
|
||
Software is furnished to do so, subject to the following conditions:
|
||
|
||
The above copyright notice and this permission notice shall be included in
|
||
all copies or substantial portions of the Software.
|
||
|
||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||
ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
||
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||
|
||
Except as contained in this notice, the name of Robert M Supnik shall not
|
||
be used in advertising or otherwise to promote the sale, use or other dealings
|
||
in this Software without prior written authorization from Robert M Supnik.
|
||
|
||
ptr paper tape reader
|
||
ptp paper tape punch
|
||
|
||
30-May-02 RMS Widened POS to 32b
|
||
29-Nov-01 RMS Added read only unit support
|
||
*/
|
||
|
||
#include "nova_defs.h"
|
||
|
||
extern int32 int_req, dev_busy, dev_done, dev_disable;
|
||
int32 ptr_stopioe = 0, ptp_stopioe = 0; /* stop on error */
|
||
t_stat ptr_svc (UNIT *uptr);
|
||
t_stat ptp_svc (UNIT *uptr);
|
||
t_stat ptr_reset (DEVICE *dptr);
|
||
t_stat ptp_reset (DEVICE *dptr);
|
||
|
||
/* PTR data structures
|
||
|
||
ptr_dev PTR device descriptor
|
||
ptr_unit PTR unit descriptor
|
||
ptr_reg PTR register list
|
||
*/
|
||
|
||
UNIT ptr_unit = {
|
||
UDATA (&ptr_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_ROABLE, 0),
|
||
SERIAL_IN_WAIT };
|
||
|
||
REG ptr_reg[] = {
|
||
{ ORDATA (BUF, ptr_unit.buf, 8) },
|
||
{ FLDATA (BUSY, dev_busy, INT_V_PTR) },
|
||
{ FLDATA (DONE, dev_done, INT_V_PTR) },
|
||
{ FLDATA (DISABLE, dev_disable, INT_V_PTR) },
|
||
{ FLDATA (INT, int_req, INT_V_PTR) },
|
||
{ DRDATA (POS, ptr_unit.pos, 32), PV_LEFT },
|
||
{ DRDATA (TIME, ptr_unit.wait, 24), PV_LEFT },
|
||
{ FLDATA (STOP_IOE, ptr_stopioe, 0) },
|
||
{ NULL } };
|
||
|
||
DEVICE ptr_dev = {
|
||
"PTR", &ptr_unit, ptr_reg, NULL,
|
||
1, 10, 31, 1, 8, 8,
|
||
NULL, NULL, &ptr_reset,
|
||
NULL, NULL, NULL };
|
||
|
||
/* PTP data structures
|
||
|
||
ptp_dev PTP device descriptor
|
||
ptp_unit PTP unit descriptor
|
||
ptp_reg PTP register list
|
||
*/
|
||
|
||
UNIT ptp_unit = {
|
||
UDATA (&ptp_svc, UNIT_SEQ+UNIT_ATTABLE, 0), SERIAL_OUT_WAIT };
|
||
|
||
REG ptp_reg[] = {
|
||
{ ORDATA (BUF, ptp_unit.buf, 8) },
|
||
{ FLDATA (BUSY, dev_busy, INT_V_PTP) },
|
||
{ FLDATA (DONE, dev_done, INT_V_PTP) },
|
||
{ FLDATA (DISABLE, dev_disable, INT_V_PTP) },
|
||
{ FLDATA (INT, int_req, INT_V_PTP) },
|
||
{ DRDATA (POS, ptp_unit.pos, 32), PV_LEFT },
|
||
{ DRDATA (TIME, ptp_unit.wait, 24), PV_LEFT },
|
||
{ FLDATA (STOP_IOE, ptp_stopioe, 0) },
|
||
{ NULL } };
|
||
|
||
DEVICE ptp_dev = {
|
||
"PTP", &ptp_unit, ptp_reg, NULL,
|
||
1, 10, 31, 1, 8, 8,
|
||
NULL, NULL, &ptp_reset,
|
||
NULL, NULL, NULL };
|
||
|
||
/* Paper tape reader: IOT routine */
|
||
|
||
int32 ptr (int32 pulse, int32 code, int32 AC)
|
||
{
|
||
int32 iodata;
|
||
|
||
iodata = (code == ioDIA)? ptr_unit.buf & 0377: 0;
|
||
switch (pulse) { /* decode IR<8:9> */
|
||
case iopS: /* start */
|
||
dev_busy = dev_busy | INT_PTR; /* set busy */
|
||
dev_done = dev_done & ~INT_PTR; /* clear done, int */
|
||
int_req = int_req & ~INT_PTR;
|
||
sim_activate (&ptr_unit, ptr_unit.wait); /* activate unit */
|
||
break;
|
||
case iopC: /* clear */
|
||
dev_busy = dev_busy & ~INT_PTR; /* clear busy */
|
||
dev_done = dev_done & ~INT_PTR; /* clear done, int */
|
||
int_req = int_req & ~INT_PTR;
|
||
sim_cancel (&ptr_unit); /* deactivate unit */
|
||
break; } /* end switch */
|
||
return iodata;
|
||
}
|
||
|
||
/* Unit service */
|
||
|
||
t_stat ptr_svc (UNIT *uptr)
|
||
{
|
||
int32 temp;
|
||
|
||
if ((ptr_unit.flags & UNIT_ATT) == 0) /* attached? */
|
||
return IORETURN (ptr_stopioe, SCPE_UNATT);
|
||
if ((temp = getc (ptr_unit.fileref)) == EOF) { /* end of file? */
|
||
if (feof (ptr_unit.fileref)) {
|
||
if (ptr_stopioe) printf ("PTR end of file\n");
|
||
else return SCPE_OK; }
|
||
else perror ("PTR I/O error");
|
||
clearerr (ptr_unit.fileref);
|
||
return SCPE_IOERR; }
|
||
dev_busy = dev_busy & ~INT_PTR; /* clear busy */
|
||
dev_done = dev_done | INT_PTR; /* set done */
|
||
int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable);
|
||
ptr_unit.buf = temp & 0377;
|
||
ptr_unit.pos = ptr_unit.pos + 1;
|
||
return SCPE_OK;
|
||
}
|
||
|
||
/* Reset routine */
|
||
|
||
t_stat ptr_reset (DEVICE *dptr)
|
||
{
|
||
ptr_unit.buf = 0;
|
||
dev_busy = dev_busy & ~INT_PTR; /* clear busy */
|
||
dev_done = dev_done & ~INT_PTR; /* clear done, int */
|
||
int_req = int_req & ~INT_PTR;
|
||
sim_cancel (&ptr_unit); /* deactivate unit */
|
||
return SCPE_OK;
|
||
}
|
||
|
||
/* Paper tape punch: IOT routine */
|
||
|
||
int32 ptp (int32 pulse, int32 code, int32 AC)
|
||
{
|
||
if (code == ioDOA) ptp_unit.buf = AC & 0377;
|
||
switch (pulse) { /* decode IR<8:9> */
|
||
case iopS: /* start */
|
||
dev_busy = dev_busy | INT_PTP; /* set busy */
|
||
dev_done = dev_done & ~INT_PTP; /* clear done, int */
|
||
int_req = int_req & ~INT_PTP;
|
||
sim_activate (&ptp_unit, ptp_unit.wait); /* activate unit */
|
||
break;
|
||
case iopC: /* clear */
|
||
dev_busy = dev_busy & ~INT_PTP; /* clear busy */
|
||
dev_done = dev_done & ~INT_PTP; /* clear done, int */
|
||
int_req = int_req & ~INT_PTP;
|
||
sim_cancel (&ptp_unit); /* deactivate unit */
|
||
break; } /* end switch */
|
||
return 0;
|
||
}
|
||
|
||
/* Unit service */
|
||
|
||
t_stat ptp_svc (UNIT *uptr)
|
||
{
|
||
dev_busy = dev_busy & ~INT_PTP; /* clear busy */
|
||
dev_done = dev_done | INT_PTP; /* set done */
|
||
int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable);
|
||
if ((ptp_unit.flags & UNIT_ATT) == 0) /* attached? */
|
||
return IORETURN (ptp_stopioe, SCPE_UNATT);
|
||
if (putc (ptp_unit.buf, ptp_unit.fileref) == EOF) {
|
||
perror ("PTP I/O error");
|
||
clearerr (ptp_unit.fileref);
|
||
return SCPE_IOERR; }
|
||
ptp_unit.pos = ptp_unit.pos + 1;
|
||
return SCPE_OK;
|
||
}
|
||
|
||
/* Reset routine */
|
||
|
||
t_stat ptp_reset (DEVICE *dptr)
|
||
{
|
||
ptp_unit.buf = 0;
|
||
dev_busy = dev_busy & ~INT_PTP; /* clear busy */
|
||
dev_done = dev_done & ~INT_PTP; /* clear done, int */
|
||
int_req = int_req & ~INT_PTP;
|
||
sim_cancel (&ptp_unit); /* deactivate unit */
|
||
return SCPE_OK;
|
||
}
|