e2ba672610
RESTRICTION: The PDP-15 FPP is only partially debugged. Do NOT enable this feature for normal operations. 1. New Features in 3.2-1 1.1 SCP and libraries - Added SET CONSOLE subhierarchy. - Added SHOW CONSOLE subhierarchy. - Added limited keyboard mapping capability. 1.2 HP2100 (new features from Dave Bryan) - Added instruction printout to HALT message. - Added M and T internal registers. - Added N, S, and U breakpoints. 1.3 PDP-11 and VAX - Added DHQ11 support (from John Dundas) 2. Bugs Fixed in 3.2-1 2.1 HP2100 (most fixes from Dave Bryan) - SBT increments B after store. - DMS console map must check dms_enb. - SFS x,C and SFC x,C work. - MP violation clears automatically on interrupt. - SFS/SFC 5 is not gated by protection enabled. - DMS enable does not disable mem prot checks. - DMS status inconsistent at simulator halt. - Examine/deposit are checking wrong addresses. - Physical addresses are 20b not 15b. - Revised DMS to use memory rather than internal format. - Revised IBL facility to conform to microcode. - Added DMA EDT I/O pseudo-opcode. - Separated DMA SRQ (service request) from FLG. - Revised peripherals to make SFS x,C and SFC x,C work. - Revised boot ROMs to use IBL facility. - Revised IBL treatment of SR to preserve SR<5:3>. - Fixed LPS, LPT timing. - Fixed DP boot interpretation of SR<0>. - Revised DR boot code to use IBL algorithm. - Fixed TTY input behavior during typeout for RTE-IV. - Suppressed nulls on TTY output for RTE-IV. - Added SFS x,C and SFC x,C to print/parse routines. - Fixed spurious timing error in magtape reads. 2.2 All DEC console devices - Removed SET TTI CTRL-C option. 2.3 PDP-11/VAX peripherals - Fixed bug in TQ reporting write protect status (reported by Lyle Bickley). - Fixed TK70 model number and media ID (found by Robert Schaffrath). - Fixed bug in autoconfigure (found by John Dundas). 2.4 VAX - Fixed bug in DIVBx and DIVWx (reported by Peter Trimmel).
254 lines
8.2 KiB
C
254 lines
8.2 KiB
C
/* pdp8_tt.c: PDP-8 console terminal simulator
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Copyright (c) 1993-2004, 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
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be 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,tto KL8E terminal input/output
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28-May-04 RMS Removed SET TTI CTRL-C
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29-Dec-03 RMS Added console output backpressure support
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25-Apr-03 RMS Revised for extended file support
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02-Mar-02 RMS Added SET TTI CTRL-C
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22-Dec-02 RMS Added break support
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01-Nov-02 RMS Added 7B/8B support
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04-Oct-02 RMS Added DIBs, device number support
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30-May-02 RMS Widened POS to 32b
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07-Sep-01 RMS Moved function prototypes
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*/
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#include "pdp8_defs.h"
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#include <ctype.h>
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#define UNIT_V_8B (UNIT_V_UF + 0) /* 8B */
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#define UNIT_V_KSR (UNIT_V_UF + 1) /* KSR33 */
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#define UNIT_8B (1 << UNIT_V_8B)
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#define UNIT_KSR (1 << UNIT_V_KSR)
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extern int32 int_req, int_enable, dev_done, stop_inst;
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int32 tti (int32 IR, int32 AC);
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int32 tto (int32 IR, int32 AC);
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t_stat tti_svc (UNIT *uptr);
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t_stat tto_svc (UNIT *uptr);
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t_stat tti_reset (DEVICE *dptr);
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t_stat tto_reset (DEVICE *dptr);
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t_stat tty_set_mode (UNIT *uptr, int32 val, char *cptr, void *desc);
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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_reg TTI register list
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tti_mod TTI modifiers list
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*/
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DIB tti_dib = { DEV_TTI, 1, { &tti } };
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UNIT tti_unit = { UDATA (&tti_svc, UNIT_KSR, 0), KBD_POLL_WAIT };
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REG tti_reg[] = {
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{ ORDATA (BUF, tti_unit.buf, 8) },
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{ FLDATA (DONE, dev_done, INT_V_TTI) },
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{ FLDATA (ENABLE, int_enable, INT_V_TTI) },
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{ FLDATA (INT, int_req, INT_V_TTI) },
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{ DRDATA (POS, tti_unit.pos, T_ADDR_W), PV_LEFT },
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{ DRDATA (TIME, tti_unit.wait, 24), REG_NZ + PV_LEFT },
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{ FLDATA (UC, tti_unit.flags, UNIT_V_KSR), REG_HRO },
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{ NULL } };
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MTAB tti_mod[] = {
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{ UNIT_KSR+UNIT_8B, UNIT_KSR, "KSR", "KSR", &tty_set_mode },
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{ UNIT_KSR+UNIT_8B, 0 , "7b" , "7B" , &tty_set_mode },
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{ UNIT_KSR+UNIT_8B, UNIT_8B , "8b" , "8B" , &tty_set_mode },
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{ MTAB_XTD|MTAB_VDV, 0, "DEVNO", NULL, NULL, &show_dev, NULL },
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{ 0 } };
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DEVICE tti_dev = {
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"TTI", &tti_unit, tti_reg, tti_mod,
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1, 10, 31, 1, 8, 8,
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NULL, NULL, &tti_reset,
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NULL, NULL, NULL,
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&tti_dib, 0 };
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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_reg TTO register list
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*/
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DIB tto_dib = { DEV_TTO, 1, { &tto } };
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UNIT tto_unit = { UDATA (&tto_svc, UNIT_KSR, 0), SERIAL_OUT_WAIT };
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REG tto_reg[] = {
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{ ORDATA (BUF, tto_unit.buf, 8) },
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{ FLDATA (DONE, dev_done, INT_V_TTO) },
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{ FLDATA (ENABLE, int_enable, INT_V_TTO) },
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{ FLDATA (INT, int_req, INT_V_TTO) },
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{ DRDATA (POS, tto_unit.pos, T_ADDR_W), PV_LEFT },
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{ DRDATA (TIME, tto_unit.wait, 24), PV_LEFT },
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{ NULL } };
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MTAB tto_mod[] = {
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{ UNIT_KSR+UNIT_8B, UNIT_KSR, "KSR", "KSR", &tty_set_mode },
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{ UNIT_KSR+UNIT_8B, 0 , "7b" , "7B" , &tty_set_mode },
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{ UNIT_KSR+UNIT_8B, UNIT_8B , "8b" , "8B" , &tty_set_mode },
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{ MTAB_XTD|MTAB_VDV, 0, "DEVNO", NULL, NULL, &show_dev },
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{ 0 } };
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DEVICE tto_dev = {
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"TTO", &tto_unit, tto_reg, tto_mod,
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1, 10, 31, 1, 8, 8,
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NULL, NULL, &tto_reset,
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NULL, NULL, NULL,
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&tto_dib, 0 };
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/* Terminal input: IOT routine */
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int32 tti (int32 IR, int32 AC)
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{
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switch (IR & 07) { /* decode IR<9:11> */
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case 0: /* KCF */
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dev_done = dev_done & ~INT_TTI; /* clear flag */
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int_req = int_req & ~INT_TTI;
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return AC;
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case 1: /* KSF */
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return (dev_done & INT_TTI)? IOT_SKP + AC: AC;
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case 2: /* KCC */
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dev_done = dev_done & ~INT_TTI; /* clear flag */
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int_req = int_req & ~INT_TTI;
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return 0; /* clear AC */
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case 4: /* KRS */
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return (AC | tti_unit.buf); /* return buffer */
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case 5: /* KIE */
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if (AC & 1) int_enable = int_enable | (INT_TTI+INT_TTO);
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else int_enable = int_enable & ~(INT_TTI+INT_TTO);
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int_req = INT_UPDATE; /* update interrupts */
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return AC;
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case 6: /* KRB */
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dev_done = dev_done & ~INT_TTI; /* clear flag */
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int_req = int_req & ~INT_TTI;
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return (tti_unit.buf); /* return buffer */
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default:
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return (stop_inst << IOT_V_REASON) + AC; } /* end switch */
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}
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/* Unit service */
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t_stat tti_svc (UNIT *uptr)
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{
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int32 c;
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sim_activate (&tti_unit, tti_unit.wait); /* continue poll */
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if ((c = sim_poll_kbd ()) < SCPE_KFLAG) return c; /* no char or error? */
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if (c & SCPE_BREAK) tti_unit.buf = 0; /* break? */
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else if (tti_unit.flags & UNIT_KSR) { /* KSR? */
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c = c & 0177;
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if (islower (c)) c = toupper (c);
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tti_unit.buf = c | 0200; } /* add TTY bit */
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else tti_unit.buf = c & ((tti_unit.flags & UNIT_8B)? 0377: 0177);
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tti_unit.pos = tti_unit.pos + 1;
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dev_done = dev_done | INT_TTI; /* set done */
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int_req = INT_UPDATE; /* update interrupts */
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return SCPE_OK;
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}
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/* Reset routine */
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t_stat tti_reset (DEVICE *dptr)
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{
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tti_unit.buf = 0;
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dev_done = dev_done & ~INT_TTI; /* clear done, int */
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int_req = int_req & ~INT_TTI;
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int_enable = int_enable | INT_TTI; /* set enable */
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sim_activate (&tti_unit, tti_unit.wait); /* activate unit */
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return SCPE_OK;
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}
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/* Terminal output: IOT routine */
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int32 tto (int32 IR, int32 AC)
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{
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switch (IR & 07) { /* decode IR<9:11> */
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case 0: /* TLF */
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dev_done = dev_done | INT_TTO; /* set flag */
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int_req = INT_UPDATE; /* update interrupts */
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return AC;
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case 1: /* TSF */
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return (dev_done & INT_TTO)? IOT_SKP + AC: AC;
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case 2: /* TCF */
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dev_done = dev_done & ~INT_TTO; /* clear flag */
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int_req = int_req & ~INT_TTO; /* clear int req */
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return AC;
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case 5: /* SPI */
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return (int_req & (INT_TTI+INT_TTO))? IOT_SKP + AC: AC;
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case 6: /* TLS */
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dev_done = dev_done & ~INT_TTO; /* clear flag */
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int_req = int_req & ~INT_TTO; /* clear int req */
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case 4: /* TPC */
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sim_activate (&tto_unit, tto_unit.wait); /* activate unit */
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tto_unit.buf = AC; /* load buffer */
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return AC;
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default:
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return (stop_inst << IOT_V_REASON) + AC; } /* end switch */
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}
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/* Unit service */
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t_stat tto_svc (UNIT *uptr)
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{
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int32 c;
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t_stat r;
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if (tto_unit.flags & UNIT_KSR) { /* UC only? */
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c = tto_unit.buf & 0177;
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if (islower (c)) c = toupper (c); }
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else c = tto_unit.buf & ((tto_unit.flags & UNIT_8B)? 0377: 0177);
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if ((r = sim_putchar_s (c)) != SCPE_OK) { /* output char; error? */
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sim_activate (uptr, uptr->wait); /* try again */
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return ((r == SCPE_STALL)? SCPE_OK: r); } /* if !stall, report */
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dev_done = dev_done | INT_TTO; /* set done */
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int_req = INT_UPDATE; /* update interrupts */
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tto_unit.pos = tto_unit.pos + 1;
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return SCPE_OK;
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}
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/* Reset routine */
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t_stat tto_reset (DEVICE *dptr)
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{
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tto_unit.buf = 0;
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dev_done = dev_done & ~INT_TTO; /* clear done, int */
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int_req = int_req & ~INT_TTO;
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int_enable = int_enable | INT_TTO; /* set enable */
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sim_cancel (&tto_unit); /* deactivate unit */
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return SCPE_OK;
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}
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t_stat tty_set_mode (UNIT *uptr, int32 val, char *cptr, void *desc)
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{
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tti_unit.flags = (tti_unit.flags & ~(UNIT_KSR | UNIT_8B)) | val;
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tto_unit.flags = (tto_unit.flags & ~(UNIT_KSR | UNIT_8B)) | val;
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return SCPE_OK;
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}
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