685 lines
23 KiB
C
685 lines
23 KiB
C
/* lgp_stddev.c: LGP-30 standard devices
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Copyright (c) 2004-2008, Robert M Supnik
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of Robert M Supnik shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from Robert M Supnik.
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tti typewriter input (keyboard and reader)
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tto typewriter output (printer and punch)
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ptr high speed reader
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ptpp high speed punch
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26-Nov-2008 RMS Changed encode character from # to !
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*/
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#include "lgp_defs.h"
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#include <ctype.h>
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uint32 tt_wait = WPS / 10;
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uint32 tti_buf = 0;
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uint32 tti_rdy = 0;
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uint32 tto_uc = 0;
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uint32 tto_buf = 0;
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uint32 ttr_stopioe = 1;
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uint32 ptr_rdy = 0;
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uint32 ptr_stopioe = 1;
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uint32 ptp_stopioe = 1;
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extern uint32 A;
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extern uint32 inp_strt, inp_done;
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extern uint32 out_strt, out_done;
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extern UNIT cpu_unit;
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extern int32 sim_switches;
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t_stat tti_svc (UNIT *uptr);
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t_stat ttr_svc (UNIT *uptr);
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t_stat tto_svc (UNIT *uptr);
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t_stat tti_reset (DEVICE *uptr);
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t_stat tto_reset (DEVICE *uptr);
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t_stat ptr_svc (UNIT *uptr);
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t_stat ptp_svc (UNIT *uptr);
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t_stat ptr_reset (DEVICE *uptr);
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t_stat ptp_reset (DEVICE *uptr);
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t_stat tap_attach (UNIT *uptr, char *cptr);
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t_stat tap_attable (UNIT *uptr, int32 val, char *cptr, void *desc);
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t_stat read_reader (UNIT *uptr, int32 stop, int32 *c);
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t_stat write_tto (int32 flex);
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t_stat write_punch (UNIT *uptr, int32 flex);
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t_stat tti_rdrss (UNIT *uptr, int32 val, char *cptr, void *desc);
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t_stat punch_feed (UNIT *uptr, int32 val, char *cptr, void *desc);
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t_stat send_start (UNIT *uptr, int32 val, char *cptr, void *desc);
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extern uint32 shift_in (uint32 a, uint32 dat, uint32 sh4);
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/* Conversion tables */
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const int32 flex_to_ascii[128] = {
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-1 , 'z', '0', ' ', '>', 'b', '1', '-',
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'<' , 'y', '2', '+', '|', 'r', '3', ';',
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'\r', 'i', '4', '/','\\', 'd', '5', '.',
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'\t', 'n', '6', ',', -1 , 'm', '7', 'v',
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'\'', 'p', '8', 'o', -1 , 'e', '9', 'x',
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-1 , 'u', 'f', -1 , -1 , 't', 'g', -1 ,
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-1 , 'h', 'j', -1 , -1 , 'c', 'k', -1 ,
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-1 , 'a', 'q', -1 , -1 , 's', 'w', 0 ,
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-1 , 'Z', ')', ' ', -1 , 'B', 'L', '_',
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-1 , 'Y', '*', '=', '|', 'R', '"', ':',
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'\r', 'I', '^', '?','\\', 'D', '%', ']',
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'\t', 'N', '$', '[', -1 , 'M', '~', 'V',
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'\'', 'P', '#', 'O', -1 , 'E', '(', 'X',
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-1 , 'U', 'F', -1 , -1 , 'T', 'G', -1 ,
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-1 , 'H', 'J', -1 , -1 , 'C', 'K', -1 ,
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-1 , 'A', 'Q', -1 , -1 , 'S', 'W', 0
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};
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const int32 ascii_to_flex[128] = {
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-1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 ,
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024, 030, -1 , -1 , -1 , 020, -1 , -1 ,
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-1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 ,
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-1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 ,
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003, -1 , 016, 042, 032, 026, -1 , 040,
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046, 001, 012, 013, 033, 007, 027, 023,
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002, 006, 012, 016, 022, 026, 032, 036,
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042, 046, 017, 017, 004, 013, 010, 023,
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-1 , 071, 005, 065, 025, 045, 052, 056,
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061, 021, 062, 066, 006, 035, 031, 043,
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041, 072, 015, 075, 055, 051, 037, 076,
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047, 011, 001, 033, -1 , 027, 022, 007,
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-1, 071, 005, 065, 025, 045, 052, 056,
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061, 021, 062, 066, 006, 035, 031, 043,
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041, 072, 015, 075, 055, 051, 037, 076,
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047, 011, 001, -1 , 014, -1 , 036, 077
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};
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static const uint8 flex_inp_valid[64] = {
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1, 1, 1, 1, 0, 1, 1, 1,
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0, 1, 1, 1, 0, 1, 1, 1,
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0, 1, 1, 1, 0, 1, 1, 1,
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0, 1, 1, 1, 0, 1, 1, 1,
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1, 1, 1, 1, 0, 1, 1, 1,
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0, 1, 1, 1, 0, 1, 1, 1,
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0, 1, 1, 1, 0, 1, 1, 1,
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0, 1, 1, 1, 0, 1, 1, 1
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};
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/* TTI data structures
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tti_dev TTI device descriptor
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tti_unit TTI unit descriptor
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tti_mod TTI modifier list
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tti_reg TTI register list
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*/
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UNIT tti_unit[] = {
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{ UDATA (&tti_svc, 0, 0) },
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{ UDATA (&ttr_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_ROABLE, 0) }
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};
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REG tti_reg[] = {
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{ HRDATA (BUF, tti_buf, 6) },
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{ FLDATA (RDY, tti_rdy, 0) },
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{ DRDATA (KPOS, tti_unit[0].pos, T_ADDR_W), PV_LEFT },
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{ DRDATA (RPOS, tti_unit[1].pos, T_ADDR_W), PV_LEFT },
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{ DRDATA (TIME, tt_wait, 24), REG_NZ + PV_LEFT },
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{ FLDATA (STOP_IOE, ttr_stopioe, 0) },
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{ NULL }
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};
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MTAB tti_mod[] = {
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{ UNIT_FLEX_D, UNIT_FLEX_D, NULL, "FLEX", &tap_attable },
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{ UNIT_FLEX_D, 0, NULL, "ASCII", &tap_attable },
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{ UNIT_ATT+UNIT_FLEX, UNIT_ATT+UNIT_FLEX,
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"file is Flex", NULL },
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{ UNIT_ATT+UNIT_FLEX, UNIT_ATT,
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"file is ASCII", NULL },
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{ UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE+UNIT_FLEX,
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"default is Flex", NULL },
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{ UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE,
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"default is ASCII", NULL },
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{ UNIT_ATTABLE+UNIT_NOCS, UNIT_ATTABLE+UNIT_NOCS,
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"ignore conditional stop", "NOCSTOP", &tap_attable },
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{ UNIT_ATTABLE+UNIT_NOCS, UNIT_ATTABLE ,
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NULL, "CSTOP", &tap_attable },
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{ MTAB_XTD|MTAB_VDV, 0, NULL, "START", &send_start },
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{ MTAB_XTD|MTAB_VDV, 1, NULL, "RSTART", &tti_rdrss },
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{ MTAB_XTD|MTAB_VDV, 0, NULL, "RSTOP", &tti_rdrss },
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{ 0 }
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};
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DEVICE tti_dev = {
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"TTI", tti_unit, tti_reg, tti_mod,
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2, 10, 31, 1, 16, 7,
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NULL, NULL, &tti_reset,
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NULL, &tap_attach, NULL
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};
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/* TTO data structures
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tto_dev TTO device descriptor
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tto_unit TTO unit descriptor
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tto_mod TTO modifier list
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tto_reg TTO register list
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*/
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UNIT tto_unit[] = {
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{ UDATA (&tto_svc, 0, 0) },
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{ UDATA (NULL, UNIT_SEQ+UNIT_ATTABLE, 0) }
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};
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REG tto_reg[] = {
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{ HRDATA (BUF, tto_buf, 6) },
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{ FLDATA (UC, tto_uc, 0) },
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{ DRDATA (TPOS, tto_unit[0].pos, T_ADDR_W), PV_LEFT },
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{ DRDATA (PPOS, tto_unit[1].pos, T_ADDR_W), PV_LEFT },
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{ DRDATA (TIME, tt_wait, 24), PV_LEFT },
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{ NULL }
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};
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MTAB tto_mod[] = {
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{ UNIT_FLEX_D, UNIT_FLEX_D, NULL, "FLEX", &tap_attable },
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{ UNIT_FLEX_D, 0, NULL, "ASCII", &tap_attable },
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{ UNIT_ATT+UNIT_FLEX, UNIT_ATT+UNIT_FLEX,
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"file is Flex", NULL },
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{ UNIT_ATT+UNIT_FLEX, UNIT_ATT,
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"file is ASCII", NULL },
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{ UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE+UNIT_FLEX,
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"default is Flex", NULL },
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{ UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE,
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"default is ASCII", NULL },
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{ MTAB_XTD|MTAB_VUN, 0, NULL, "FEED", &punch_feed },
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{ 0 }
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};
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DEVICE tto_dev = {
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"TTO", tto_unit, tto_reg, tto_mod,
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2, 10, 31, 1, 16, 7,
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NULL, NULL, &tto_reset,
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NULL, &tap_attach, NULL
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};
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/* PTR data structures
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ptr_dev PTR device descriptor
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ptr_unit PTR unit descriptor
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ptr_mod PTR modifier list
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ptr_reg PTR register list
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*/
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UNIT ptr_unit = {
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UDATA (&ptr_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_ROABLE, 0), WPS / 200
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};
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REG ptr_reg[] = {
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{ HRDATA (BUF, ptr_unit.buf, 6) },
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{ FLDATA (RDY, ptr_rdy, 0) },
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{ DRDATA (POS, ptr_unit.pos, T_ADDR_W), PV_LEFT },
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{ DRDATA (TIME, ptr_unit.wait, 24), REG_NZ + PV_LEFT },
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{ FLDATA (STOP_IOE, ptr_stopioe, 0) },
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{ NULL }
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};
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MTAB ptr_mod[] = {
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{ UNIT_FLEX_D, UNIT_FLEX_D, NULL, "FLEX", &tap_attable },
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{ UNIT_FLEX_D, 0, NULL, "ASCII", &tap_attable },
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{ UNIT_ATT+UNIT_FLEX, UNIT_ATT+UNIT_FLEX,
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"file is Flex", NULL },
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{ UNIT_ATT+UNIT_FLEX, UNIT_ATT,
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"file is ASCII", NULL },
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{ UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE+UNIT_FLEX,
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"default is Flex", NULL },
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{ UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE,
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"default is ASCII", NULL },
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{ 0 }
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};
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DEVICE ptr_dev = {
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"PTR", &ptr_unit, ptr_reg, ptr_mod,
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1, 10, 31, 1, 16, 7,
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NULL, NULL, &ptr_reset,
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NULL, &tap_attach, NULL
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};
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/* PTP data structures
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ptp_dev PTP device descriptor
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ptp_unit PTP unit descriptor
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ptp_mod PTP modifier list
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ptp_reg PTP register list
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*/
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UNIT ptp_unit = {
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UDATA (&ptp_svc, UNIT_SEQ+UNIT_ATTABLE, 0), WPS / 20
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};
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REG ptp_reg[] = {
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{ ORDATA (BUF, ptp_unit.buf, 8) },
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{ DRDATA (POS, ptp_unit.pos, T_ADDR_W), PV_LEFT },
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{ DRDATA (TIME, ptp_unit.wait, 24), PV_LEFT },
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{ FLDATA (STOP_IOE, ptp_stopioe, 0) },
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{ NULL }
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};
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MTAB ptp_mod[] = {
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{ UNIT_FLEX_D, UNIT_FLEX_D, NULL, "FLEX", &tap_attable },
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{ UNIT_FLEX_D, 0, NULL, "ASCII", &tap_attable },
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{ UNIT_ATT+UNIT_FLEX, UNIT_ATT+UNIT_FLEX,
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"file is Flex", NULL },
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{ UNIT_ATT+UNIT_FLEX, UNIT_ATT,
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"file is ASCII", NULL },
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{ UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE+UNIT_FLEX,
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"default is Flex", NULL },
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{ UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE,
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"default is ASCII", NULL },
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{ 0 }
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};
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DEVICE ptp_dev = {
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"PTP", &ptp_unit, ptp_reg, ptp_mod,
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1, 10, 31, 1, 16, 7,
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NULL, NULL, &ptp_reset,
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NULL, &tap_attach, NULL
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};
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/* Input instruction */
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void op_i_strt (uint32 dev)
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{
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switch (dev) { /* case on device */
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case DEV_PT: /* ptr */
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sim_activate (&ptr_unit, ptr_unit.wait); /* activate */
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break;
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case DEV_TT: /* tti/ttr */
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if (Q_MANI) /* manual input? */
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sim_putchar ('`');
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else sim_activate (&tti_unit[1], tt_wait); /* no, must be ttr */
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break;
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}
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return;
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}
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t_stat op_i (uint32 dev, uint32 ch, uint32 sh4)
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{
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if (Q_LGP21 && out_strt) /* LGP-21? must be idle */
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return STOP_STALL;
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if (!inp_strt) { /* input started? */
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inp_strt = 1; /* no, set start */
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inp_done = 0; /* clear done */
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A = shift_in (A, ch, sh4);
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tti_rdy = ptr_rdy = 0; /* no input */
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if (Q_LGP21 || Q_INPT) /* LGP-21 or PTR? start */
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op_i_strt (dev);
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}
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switch (dev) { /* case on device */
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case DEV_PT: /* ptr */
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if (ptr_rdy) { /* char ready? */
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ptr_rdy = 0; /* reset ready */
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if ((ptr_unit.buf != FLEX_DEL) && /* ignore delete and */
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(!Q_LGP21 || ((ptr_unit.buf & 3) == 2))) /* LGP-21 4b? zone != 2 */
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A = shift_in (A, ptr_unit.buf, sh4); /* shift data in */
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}
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break;
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case DEV_TT: /* tti/ttr */
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if (tti_rdy) { /* char ready? */
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tti_rdy = 0; /* reset ready */
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if ((tti_buf != FLEX_DEL) && /* ignore delete and */
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(!Q_LGP21 || ((tti_buf & 3) != 0))) /* LGP-21 4b? zone == 0 */
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A = shift_in (A, tti_buf, sh4); /* shift data in */
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}
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break;
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default: /* nx device */
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return STOP_NXDEV; /* return error */
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}
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if (inp_done) { /* done? */
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inp_strt = inp_done = 0; /* clear start, done */
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return SCPE_OK; /* no stall */
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}
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return STOP_STALL; /* stall */
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}
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/* Terminal keyboard unit service */
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t_stat tti_svc (UNIT *uptr)
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{
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int32 c, flex;
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sim_activate (uptr, tt_wait); /* continue poll */
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if ((c = sim_poll_kbd ()) < SCPE_KFLAG) /* no char or error? */
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return c;
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flex = ascii_to_flex[c & 0x1FF]; /* cvt to flex */
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if (flex > 0) { /* it's a typewriter... */
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write_tto (flex); /* always echos */
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if (tto_unit[1].flags & UNIT_ATT) /* ttp attached? */
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write_punch (&tto_unit[1], tto_buf); /* punch to ttp */
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}
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else write_tto ('\a'); /* don't echo bad */
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if (Q_MANI && (flex > 0) && flex_inp_valid[flex]) { /* wanted, valid? */
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if (flex == FLEX_CSTOP) /* conditional stop? */
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inp_done = 1;
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else tti_rdy = 1; /* no, set ready */
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tti_buf = flex; /* save char */
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uptr->pos = uptr->pos + 1;
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}
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return SCPE_OK;
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}
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/* Terminal reader unit service */
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t_stat ttr_svc (UNIT *uptr)
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{
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t_stat r;
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if ((r = read_reader (uptr, ttr_stopioe, (int32 *) &tti_buf)))
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return r;
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if (!(uptr->flags & UNIT_NOCS) && /* cstop enable? */
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(tti_buf == FLEX_CSTOP)) /* cond stop? */
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inp_done = 1;
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else {
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tti_rdy = 1; /* no, set ready */
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sim_activate (uptr, tt_wait); /* cont reading */
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}
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write_tto (tti_buf); /* echo to tto */
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if (tto_unit[1].flags & UNIT_ATT) /* ttp attached? */
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return write_punch (&tto_unit[1], tti_buf); /* punch to ttp */
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return SCPE_OK;
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}
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/* Paper tape reader unit service */
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t_stat ptr_svc (UNIT *uptr)
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{
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t_stat r;
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if ((r = read_reader (uptr, ptr_stopioe, &uptr->buf)))
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return r;
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if (uptr->buf == FLEX_CSTOP) /* cond stop? */
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inp_done = 1;
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else {
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ptr_rdy = 1; /* no, set ready */
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sim_activate (uptr, uptr->wait); /* cont reading */
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}
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return SCPE_OK;
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}
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/* Output instruction */
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t_stat op_p (uint32 dev, uint32 ch)
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{
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switch (dev) { /* case on device */
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case DEV_PT: /* paper tape punch */
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if (sim_is_active (&ptp_unit)) /* busy? */
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return (Q_LGP21? STOP_STALL: SCPE_OK); /* LGP-21: stall */
|
|
ptp_unit.buf = ch; /* save char */
|
|
sim_activate (&ptp_unit, ptp_unit.wait); /* activate ptp */
|
|
break;
|
|
|
|
case DEV_TT: /* typewriter */
|
|
if (ch == 0) { /* start input? */
|
|
if (!Q_LGP21 && !Q_INPT) /* ignore if LGP-21, ptr */
|
|
op_i_strt (DEV_TT); /* start tti */
|
|
return SCPE_OK; /* no stall */
|
|
}
|
|
if (sim_is_active (&tto_unit[0])) /* busy? */
|
|
return (Q_LGP21? STOP_STALL: SCPE_OK); /* LGP-21: stall */
|
|
tto_buf = ch; /* save char */
|
|
sim_activate (&tto_unit[0], tt_wait); /* activate tto */
|
|
break;
|
|
|
|
default: /* unknown */
|
|
return STOP_NXDEV; /* return error */
|
|
}
|
|
|
|
if (out_strt == 0) { /* output started? */
|
|
out_strt = 1; /* flag start */
|
|
out_done = 0; /* clear done */
|
|
}
|
|
return SCPE_OK; /* no stall */
|
|
}
|
|
|
|
/* Terminal printer unit service */
|
|
|
|
t_stat tto_svc (UNIT *uptr)
|
|
{
|
|
t_stat r;
|
|
|
|
if ((r = write_tto (tto_buf)) != SCPE_OK) { /* output; error? */
|
|
sim_activate (uptr, tt_wait); /* try again */
|
|
return ((r == SCPE_STALL)? SCPE_OK: r); /* !stall? report */
|
|
}
|
|
out_strt = 0;
|
|
out_done = 1;
|
|
if (tto_unit[1].flags & UNIT_ATT) /* ttp attached? */
|
|
return write_punch (&tto_unit[1], tto_buf); /* punch to ttp */
|
|
return SCPE_OK;
|
|
}
|
|
|
|
/* Paper tape punch unit service */
|
|
|
|
t_stat ptp_svc (UNIT *uptr)
|
|
{
|
|
out_strt = 0;
|
|
out_done = 1;
|
|
if ((uptr->flags & UNIT_ATT) == 0) /* not attached? */
|
|
return IORETURN (ptp_stopioe, SCPE_UNATT); /* error */
|
|
return write_punch (uptr, uptr->buf); /* write to ptp */
|
|
}
|
|
|
|
/* Utility routines */
|
|
|
|
t_stat read_reader (UNIT *uptr, int32 stop, int32 *fl)
|
|
{
|
|
int32 ch, flex;
|
|
|
|
if ((uptr->flags & UNIT_ATT) == 0) /* attached? */
|
|
return IORETURN (stop, SCPE_UNATT);
|
|
do {
|
|
if ((ch = getc (uptr->fileref)) == EOF) { /* read char */
|
|
if (feof (uptr->fileref)) { /* err or eof? */
|
|
if (stop)
|
|
printf ("Reader end of file\n");
|
|
else return SCPE_OK;
|
|
}
|
|
else perror ("Reader I/O error");
|
|
clearerr (uptr->fileref);
|
|
return SCPE_IOERR;
|
|
}
|
|
if (uptr->flags & UNIT_FLEX) /* transposed flex? */
|
|
flex = ((ch << 1) | (ch >> 5)) & 0x3F; /* undo 612345 */
|
|
else if (ch == '!') { /* encoded? */
|
|
int32 d1 = getc (uptr->fileref); /* get 2 digits */
|
|
int32 d2 = getc (uptr->fileref);
|
|
if ((d1 == EOF) || (d2 == EOF)) { /* error? */
|
|
if (feof (uptr->fileref)) { /* eof? */
|
|
if (stop)
|
|
printf ("Reader end of file\n");
|
|
else return SCPE_OK;
|
|
}
|
|
else perror ("Reader I/O error");
|
|
clearerr (uptr->fileref);
|
|
return SCPE_IOERR;
|
|
}
|
|
flex = (((d1 - '0') * 10) + (d2 - '0')) & 0x3F;
|
|
uptr->pos = uptr->pos + 2;
|
|
}
|
|
else flex = ascii_to_flex[ch & 0x7F]; /* convert */
|
|
uptr->pos = uptr->pos + 1;
|
|
} while (flex < 0); /* until valid */
|
|
*fl = flex; /* return char */
|
|
return SCPE_OK;
|
|
}
|
|
|
|
t_stat write_tto (int32 flex)
|
|
{
|
|
int32 ch;
|
|
t_stat r;
|
|
|
|
if (flex == FLEX_UC) /* UC? set state */
|
|
tto_uc = 1;
|
|
else if (flex == FLEX_LC) /* LC? set state */
|
|
tto_uc = 0;
|
|
else {
|
|
if (flex == FLEX_BS) /* backspace? */
|
|
ch = '\b';
|
|
else ch = flex_to_ascii[flex | (tto_uc << 6)]; /* cvt flex to ascii */
|
|
if (ch > 0) { /* legit? */
|
|
if ((r = sim_putchar_s (ch))) /* write char */
|
|
return r;
|
|
tto_unit[0].pos = tto_unit[0].pos + 1;
|
|
if (flex == FLEX_CR) { /* cr? */
|
|
sim_putchar ('\n'); /* add lf */
|
|
tto_unit[0].pos = tto_unit[0].pos + 1;
|
|
}
|
|
}
|
|
}
|
|
return SCPE_OK;
|
|
}
|
|
|
|
t_stat write_punch (UNIT *uptr, int32 flex)
|
|
{
|
|
int32 c, sta;
|
|
|
|
if (uptr->flags & UNIT_FLEX) /* transposed flex? */
|
|
c = ((flex >> 1) | (flex << 5)) & 0x3F; /* reorder to 612345 */
|
|
else c = flex_to_ascii[flex]; /* convert to ASCII */
|
|
if (c >= 0) /* valid? */
|
|
sta = fputc (c, uptr->fileref);
|
|
else sta = fprintf (uptr->fileref, "!%02d", flex); /* no, encode */
|
|
if (sta == EOF) { /* error? */
|
|
perror ("Punch I/O error"); /* error? */
|
|
clearerr (uptr->fileref);
|
|
return SCPE_IOERR;
|
|
}
|
|
uptr->pos = uptr->pos + ((c >= 0)? 1: 3); /* incr position */
|
|
return SCPE_OK;
|
|
}
|
|
|
|
/* Reset routines */
|
|
|
|
t_stat tti_reset (DEVICE *dptr)
|
|
{
|
|
sim_activate (&tti_unit[0], tt_wait);
|
|
sim_cancel (&tti_unit[1]);
|
|
tti_buf = 0;
|
|
tti_rdy = 0;
|
|
return SCPE_OK;
|
|
}
|
|
|
|
t_stat tto_reset (DEVICE *dptr)
|
|
{
|
|
sim_cancel (&tto_unit[0]);
|
|
tto_buf = 0;
|
|
tto_uc = 0;
|
|
return SCPE_OK;
|
|
}
|
|
|
|
t_stat ptr_reset (DEVICE *dptr)
|
|
{
|
|
sim_cancel (&ptr_unit);
|
|
ptr_unit.buf = 0;
|
|
ptr_rdy = 0;
|
|
return SCPE_OK;
|
|
}
|
|
|
|
t_stat ptp_reset (DEVICE *dptr)
|
|
{
|
|
sim_cancel (&ptp_unit);
|
|
ptp_unit.buf = 0;
|
|
return SCPE_OK;
|
|
}
|
|
|
|
/* Attach paper tape unit */
|
|
|
|
t_stat tap_attach (UNIT *uptr, char *cptr)
|
|
{
|
|
t_stat r;
|
|
|
|
if ((r = attach_unit (uptr,cptr)) != SCPE_OK)
|
|
return r;
|
|
if ((sim_switches & SWMASK ('F')) ||
|
|
((uptr->flags & UNIT_FLEX_D) && !(sim_switches & SWMASK ('A'))))
|
|
uptr->flags = uptr->flags | UNIT_FLEX;
|
|
else uptr->flags = uptr->flags & ~UNIT_FLEX;
|
|
return SCPE_OK;
|
|
}
|
|
|
|
/* Validate unit is attachable */
|
|
|
|
t_stat tap_attable (UNIT *uptr, int32 val, char *cptr, void *desc)
|
|
{
|
|
if (uptr->flags & UNIT_ATTABLE)
|
|
return SCPE_OK;
|
|
return SCPE_NOFNC;
|
|
}
|
|
|
|
/* Typewriter reader start/stop */
|
|
|
|
t_stat tti_rdrss (UNIT *uptr, int32 val, char *cptr, void *desc)
|
|
{
|
|
if (val) {
|
|
if ((tti_unit[1].flags & UNIT_ATT) == 0)
|
|
return SCPE_UNATT;
|
|
sim_activate (&tti_unit[1], tt_wait);
|
|
}
|
|
else sim_cancel (&tti_unit[1]);
|
|
return SCPE_OK;
|
|
}
|
|
|
|
/* Punch feed routine */
|
|
|
|
t_stat punch_feed (UNIT *uptr, int32 val, char *cptr, void *desc)
|
|
{
|
|
int32 cnt;
|
|
t_stat r;
|
|
|
|
if ((uptr->flags & UNIT_ATT) == 0)
|
|
return SCPE_UNATT;
|
|
if (cptr) {
|
|
cnt = (int32) get_uint (cptr, 10, 512, &r);
|
|
if ((r != SCPE_OK) || (cnt == 0))
|
|
return SCPE_ARG;
|
|
}
|
|
else cnt = 10;
|
|
while (cnt-- > 0) {
|
|
r = write_punch (uptr, 0);
|
|
if (r != SCPE_OK)
|
|
return r;
|
|
}
|
|
return SCPE_OK;
|
|
}
|
|
|
|
/* Send start signal */
|
|
|
|
t_stat send_start (UNIT *uptr, int32 val, char *cptr, void *desc)
|
|
{
|
|
if (inp_strt)
|
|
inp_done = 1;
|
|
else if (out_strt)
|
|
out_done = 1;
|
|
return SCPE_OK;
|
|
}
|