26aa6de663
RESTRICTION: The PDP-15 FPP is only partially debugged. Do NOT enable this feature for normal operations. WARNING: The core simulator files (scp.c, sim_*.c) have been reorganized. Unzip V3.2-0 to an empty directory before attempting to compile the source. IMPORTANT: If you are compiling for UNIX, please read the notes for Ethernet very carefully. You may need to download a new version of the pcap library, or make changes to the makefile, to get Ethernet support to work. 1. New Features in 3.2-0 1.1 SCP and libraries - Added SHOW <device> RADIX command. - Added SHOW <device> MODIFIERS command. - Added SHOW <device> NAMES command. - Added SET/SHOW <device> DEBUG command. - Added sim_vm_parse_addr and sim_vm_fprint_addr optional interfaces. - Added REG_VMAD flag. - Split SCP into separate libraries for easier modification. - Added more room to the device and unit flag fields. - Changed terminal multiplexor library to support unlimited. number of async lines. 1.2 All DECtapes - Added STOP_EOR flag to enable end-of-reel error stop - Added device debug support. 1.3 Nova and Eclipse - Added QTY and ALM multiplexors (Bruce Ray). 1.4 LGP-30 - Added LGP-30/LGP-21 simulator. 1.5 PDP-11 - Added format, address increment inhibit, transfer overrun detection to RK. - Added device debug support to HK, RP, TM, TQ, TS. - Added DEUNA/DELUA (XU) support (Dave Hittner). - Add DZ per-line logging. 1.6 18b PDP's - Added support for 1-4 (PDP-9)/1-16 (PDP-15) additional terminals. 1.7 PDP-10 - Added DEUNA/DELUA (XU) support (Dave Hittner). 1.8 VAX - Added extended memory to 512MB (Mark Pizzolato). - Added RXV21 support. 2. Bugs Fixed in 3.2-0 2.1 SCP - Fixed double logging of SHOW BREAK (found by Mark Pizzolato). - Fixed implementation of REG_VMIO. 2.2 Nova and Eclipse - Fixed device enable/disable support (found by Bruce Ray). 2.3 PDP-1 - Fixed bug in LOAD (found by Mark Crispin). 2.4 PDP-10 - Fixed bug in floating point unpack. - Fixed bug in FIXR (found by Phil Stone, fixed by Chris Smith). 2.6 PDP-11 - Fixed bug in RQ interrupt control (found by Tom Evans). 2.6 PDP-18B - Fixed bug in PDP-15 XVM g_mode implementation. - Fixed bug in PDP-15 indexed address calculation. - Fixed bug in PDP-15 autoindexed address calculation. - Fixed bugs in FPP-15 instruction decode. - Fixed clock response to CAF. - Fixed bug in hardware read-in mode bootstrap. - Fixed PDP-15 XVM instruction decoding errors. 2.7 VAX - Fixed PC read fault in EXTxV. - Fixed PC write fault in INSV.
135 lines
4.9 KiB
C
135 lines
4.9 KiB
C
/* pdp1_defs.h: 18b PDP simulator definitions
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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 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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08-Feb-04 PLB Added support for display
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08-Dec-03 RMS Added support for parallel drum
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18-Oct-03 RMS Added DECtape off reel message
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22-Jul-03 RMS Updated for "hardware" RIM loader
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Revised to detect I/O wait hang
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05-Dec-02 RMS Added IOT skip support (required by drum)
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14-Apr-99 RMS Changed t_addr to unsigned
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The PDP-1 was Digital's first computer. The system design evolved during
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its life, and as a result, specifications are sketchy or contradictory.
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This simulator is based on the 1962 maintenance manual.
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This simulator implements the following options:
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Automatic multiply/divide Type 10
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Memory extension control Type 15
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Parallel drum Type 23
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Serial drum Type 24
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Graphic display Type 30
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Line printer control Type 62
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Microtape (DECtape) control Type 550
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*/
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#include "sim_defs.h"
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/* Simulator stop codes */
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#define STOP_RSRV 1 /* must be 1 */
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#define STOP_HALT 2 /* HALT */
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#define STOP_IBKPT 3 /* breakpoint */
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#define STOP_XCT 4 /* nested XCT's */
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#define STOP_IND 5 /* nested indirects */
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#define STOP_WAIT 6 /* IO wait hang */
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#define STOP_DTOFF 7 /* DECtape off reel */
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/* Memory */
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#define ASIZE 16 /* address bits */
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#define MAXMEMSIZE (1u << ASIZE) /* max mem size */
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#define AMASK (MAXMEMSIZE - 1) /* address mask */
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#define MEMSIZE (cpu_unit.capac) /* actual memory size */
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#define MEM_ADDR_OK(x) (((uint32) (x)) < MEMSIZE)
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/* Architectural constants */
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#define DMASK 0777777 /* data mask */
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#define DAMASK 0007777 /* direct addr */
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#define EPCMASK (AMASK & ~DAMASK) /* extended addr */
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#define IA 0010000 /* indirect flag */
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#define IO_WAIT 0010000 /* I/O sync wait */
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#define IO_CPLS 0004000 /* completion pulse */
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#define OP_DAC 0240000 /* DAC */
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#define OP_DIO 0320000 /* DIO */
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#define OP_JMP 0600000 /* JMP */
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#define GEN_CPLS(x) (((x) ^ ((x) << 1)) & IO_WAIT) /* completion pulse? */
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/* IOT subroutine return codes */
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#define IOT_V_SKP 18 /* skip */
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#define IOT_SKP (1 << IOT_V_SKP)
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#define IOT_V_REASON (IOT_V_SKP + 1) /* reason */
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#define IOT_REASON (1 << IOT_V_REASON)
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#define IORETURN(f,v) ((f)? (v): SCPE_OK) /* stop on error */
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/* I/O status flags */
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#define IOS_V_LPN 17 /* light pen */
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#define IOS_V_PTR 16 /* paper tape reader */
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#define IOS_V_TTO 15 /* typewriter out */
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#define IOS_V_TTI 14 /* typewriter in */
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#define IOS_V_PTP 13 /* paper tape punch */
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#define IOS_V_DRM 12 /* drum */
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#define IOS_V_SQB 11 /* sequence break */
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#define IOS_V_PNT 2 /* print done */
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#define IOS_V_SPC 1 /* space done */
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#define IOS_V_DRP 0 /* parallel drum busy */
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#define IOS_LPN (1 << IOS_V_LPN)
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#define IOS_PTR (1 << IOS_V_PTR)
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#define IOS_TTO (1 << IOS_V_TTO)
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#define IOS_TTI (1 << IOS_V_TTI)
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#define IOS_PTP (1 << IOS_V_PTP)
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#define IOS_DRM (1 << IOS_V_DRM)
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#define IOS_SQB (1 << IOS_V_SQB)
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#define IOS_PNT (1 << IOS_V_PNT)
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#define IOS_SPC (1 << IOS_V_SPC)
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#define IOS_DRP (1 << IOS_V_DRP)
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/* Completion pulses */
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#define CPLS_V_PTR 5
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#define CPLS_V_PTP 4
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#define CPLS_V_TTO 3
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#define CPLS_V_LPT 2
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#define CPLS_V_DPY 1
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#define CPLS_PTR (1 << CPLS_V_PTR)
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#define CPLS_PTP (1 << CPLS_V_PTP)
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#define CPLS_TTO (1 << CPLS_V_TTO)
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#define CPLS_LPT (1 << CPLS_V_LPT)
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#define CPLS_DPY (1 << CPLS_V_TTY)
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/* Sequence break flags */
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#define SB_V_IP 0 /* in progress */
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#define SB_V_RQ 1 /* request */
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#define SB_V_ON 2 /* enabled */
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#define SB_IP (1 << SB_V_IP)
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#define SB_RQ (1 << SB_V_RQ)
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#define SB_ON (1 << SB_V_ON)
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