folkert/simh-testsetgenerator
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
simh-testsetgenerator/NOVA/nova_defs.h
Bob Supnik 701f0fe028 Notes For V2.8 
1. New Features

1.1 Directory and documentation

- Only common files (SCP and libraries) are in the top level
  directory.  Individual simulator files are in their individual
  directories.
- simh_doc.txt has been split up.  simh_doc.txt now documents
  only SCP.  The individual simulators are documented in separate
  text files in their own directories.
- mingw_build.bat is a batch file for the MINGW/gcc environment
  that will build all the simulators, assuming the root directory
  structure is at c:\sim.
- Makefile is a UNIX make file for the gcc environment that will
  build all the simulators, assuming the root directory is at
  c:\sim.

1.2 SCP

- DO <file name> executes the SCP commands in the specified file.
- Replicated registers in unit structures can now be declared as
  arrays for examine, modify, save, and restore.  Most replicated
  unit registers (for example, mag tape position registers) have
  been changed to arrays.
- The ADD/REMOVE commands have been replaced by SET unit ONLINE
  and SET unit OFFLINE, respectively.
- Register names that are unique within an entire simulator do
  not have to be prefaced with the device name.
- The ATTACH command can attach files read only, either under
  user option (-r), or because the attached file is ready only.
- The SET/SHOW capabilities have been extended.  New forms include:

	SET <dev> param{=value}{ param ...}
	SET <unit> param{=value}{ param ...}
	SHOW <dev> {param param ...}
	SHOW <unit> {param param ...}

- Multiple breakpoints have been implemented.  Breakpoints are
  set/cleared/displayed by:

	BREAK addr_list{[count]}
	NOBREAK addr_list
	SHOW BREAK addr_list

1.3 PDP-11 simulator

- Unibus map implemented, with 22b RP controller (URH70) or 18b
  RP controller (URH11) (in debug).
- All DMA peripherals rewritten to use map.
- Many peripherals modified for source sharing with VAX.
- RQDX3 implemented.
- Bugs fixed in RK11 and RL11 write check.

1.4 PDP-10 simulator

- ITS 1-proceed implemented.
- Bugs fixed in ITS PC sampling and LPMR

1.5 18b PDP simulator

- Interrupts split out to multiple levels to allow easier
  expansion.

1.5 IBM System 3 Simulator

- Written by Charles (Dutch) Owen.

1.6 VAX Simulator (in debug)

- Simulates MicroVAX 3800 (KA655) with 16MB-64MB memory, RQDX3,
  RLV12, TSV11, DZV11, LPV11, PCV11.
- CDROM capability has been added to the RQDX3, to allow testing
  with VMS hobbyist images.

1.7 SDS 940 Simulator (not tested)

- Simulates SDS 940, 16K-64K memory, fixed and moving head
  disk, magtape, line printer, console.

1.8 Altair Z80

- Revised from Charles (Dutch) Owen's original by Peter Schorn.
- MITS 8080 with full Z80 simulation.
- 4K and 8K BASIC packages, Prolog package.

1.9 Interdata

The I4 simulator has been withdrawn for major rework.  Look for
a complete 16b/32b Interdata simulator sometime next year.

2. Release Notes

2.1 SCP

SCP now allows replicated registers in unit structures to be
modelled as arrays.  All replicated register declarations have
been replaced by register array declarations.  As a result,
save files from prior revisions will generate errors after
restoring main memory.

2.2 PDP-11

The Unibus map code is in debug.  The map was implemented primarily
to allow source sharing with the VAX, which requires a DMA map.
DMA devices work correctly with the Unibus map disabled.

The RQDX3 simulator has run a complete RSTS/E SYSGEN, with multiple
drives, and booted the completed system from scratch.

2.3 VAX

The VAX simulator will run the boot code up to the >>> prompt.  It
can successfully process a SHOW DEVICE command.  It runs the HCORE
instruction diagnostic.  It can boot the hobbyist CD through SYSBOOT
and through the date/time dialog and restore the hobbyist CD, using
standalone backup.  On the boot of the restored disk, it gets to the
date/time dialog, and then crashes.

2.4 SDS 940

The SDS 940 is untested, awaiting real code.

2.5 GCC Optimization

At -O2 and above, GCC does not correctly compile the simulators which
use setjmp-longjmp (PDP-11, PDP-10, VAX).  A working hypothesis is
that optimized state maintained in registers is being used in the
setjmp processing routine.  On the PDP-11 and PDP-10, all of this
state has been either made global, or volatile, to encourage GCC to
keep the state up to date in memory.  The VAX is still vulnerable.

3. Work list

3.1 SCP

- Better ENABLE/DISABLE.

3.2 PDP-11 RQDX3

Software mapped mode, RCT read simulation, VMS debug.
2011-04-15 08:33:38 -07:00

235 lines
7.9 KiB
C
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* nova_defs.h: NOVA/Eclipse simulator definitions
Copyright (c) 1993-2001, 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.
22-Dec-00 RMS Added Bruce Ray's second terminal support
10-Dec-00 RMS Added Charles Owen's Eclipse support
08-Dec-00 RMS Added Bruce Ray's plotter support
15-Oct-00 RMS Added stack, byte, trap instructions
14-Apr-99 RMS Changed t_addr to unsigned
16-Mar-95 RMS Added dynamic memory size
06-Dec-95 RMS Added magnetic tape
The author gratefully acknowledges the help of Tom West, Diana Englebart,
Carl Friend, Bruce Ray, and Charles Owen in resolving questions about
the NOVA.
*/
#include "sim_defs.h" /* simulator defns */
/* Simulator stop codes */
#define STOP_RSRV 1 /* must be 1 */
#define STOP_HALT 2 /* HALT */
#define STOP_IBKPT 3 /* breakpoint */
#define STOP_IND 4 /* indirect loop */
#define STOP_IND_INT 5 /* ind loop, intr */
#define STOP_IND_TRP 6 /* ind loop, trap */
/* Memory */
#if defined (ECLIPSE)
#define MAXMEMSIZE 1048576 /* max memory size */
#else
#define MAXMEMSIZE 32768 /* max memory size */
#endif
#define AMASK 077777 /* logical addr mask */
#define PAMASK (MAXMEMSIZE - 1) /* physical addr mask */
#define MEMSIZE (cpu_unit.capac) /* actual memory size */
#define A_V_IND 15 /* ind: indirect */
#define A_IND (1 << A_V_IND)
#define MEM_ADDR_OK(x) (((t_addr) (x)) < MEMSIZE)
/* Architectural constants */
#define SIGN 0100000 /* sign */
#define DMASK 0177777 /* data mask */
#define CBIT (DMASK + 1) /* carry bit */
#define CMASK (CBIT | DMASK) /* carry + data */
/* Reserved memory locations */
#define INT_SAV 0 /* intr saved PC */
#define INT_JMP 1 /* intr jmp @ */
#define STK_JMP 3 /* stack jmp @ */
#define TRP_SAV 046 /* trap saved PC */
#define TRP_JMP 047 /* trap jmp @ */
#define AUTO_INC 020 /* start autoinc */
#define AUTO_DEC 030 /* start autodec */
/* Instruction format */
#define I_OPR 0100000 /* operate */
#define I_M_SRC 03 /* OPR: src AC */
#define I_V_SRC 13
#define I_GETSRC(x) (((x) >> I_V_SRC) & I_M_SRC)
#define I_M_DST 03 /* dst AC */
#define I_V_DST 11
#define I_GETDST(x) (((x) >> I_V_DST) & I_M_DST)
#define I_M_ALU 07 /* OPR: ALU op */
#define I_V_ALU 8
#define I_GETALU(x) (((x) >> I_V_ALU) & I_M_ALU)
#define I_M_SHF 03 /* OPR: shift */
#define I_V_SHF 6
#define I_GETSHF(x) (((x) >> I_V_SHF) & I_M_SHF)
#define I_M_CRY 03 /* OPR: carry */
#define I_V_CRY 4
#define I_GETCRY(x) (((x) >> I_V_CRY) & I_M_CRY)
#define I_V_NLD 3 /* OPR: no load */
#define I_NLD (1 << I_V_NLD)
#define I_M_SKP 07 /* OPR: skip */
#define I_V_SKP 0
#define I_GETSKP(x) (((x) >> I_V_SKP) & I_M_SKP)
#define I_M_OPAC 017 /* MRF: opcode + AC */
#define I_V_OPAC 11
#define I_GETOPAC(x) (((x) >> I_V_OPAC) & I_M_OPAC)
#define I_V_IND 10 /* MRF: indirect */
#define I_IND (1 << I_V_IND)
#define I_M_MODE 03 /* MRF: mode */
#define I_V_MODE 8
#define I_GETMODE(x) (((x) >> I_V_MODE) & I_M_MODE)
#define I_M_DISP 0377 /* MRF: disp */
#define I_V_DISP 0
#define I_GETDISP(x) (((x) >> I_V_DISP) & I_M_DISP)
#define DISPSIZE (I_M_DISP + 1) /* page size */
#define DISPSIGN (DISPSIZE >> 1) /* page sign */
#define I_M_IOT 07 /* IOT: code */
#define I_V_IOT 8
#define I_GETIOT(x) (((x) >> I_V_IOT) & I_M_IOT)
#define I_M_PULSE 03 /* IOT pulse */
#define I_V_PULSE 6
#define I_GETPULSE(x) (((x) >> I_V_PULSE) & I_M_PULSE)
#define I_M_DEV 077 /* IOT: device */
#define I_V_DEV 0
#define I_GETDEV(x) (((x) >> I_V_DEV) & I_M_DEV)
#define I_M_XOP 037 /* XOP: code */
#define I_V_XOP 6
#define I_GETXOP(x) (((x) >> I_V_XOP) & I_M_XOP)
/* IOT return codes */
#define IOT_V_REASON 16 /* set reason */
#define IORETURN(f,v) ((f)? (v): SCPE_OK) /* stop on error */
/* IOT fields */
#define ioNIO 0 /* opcode field */
#define ioDIA 1
#define ioDOA 2
#define ioDIB 3
#define ioDOB 4
#define ioDIC 5
#define ioDOC 6
#define ioSKP 7
#define iopN 0 /* pulse field */
#define iopS 1
#define iopC 2
#define iopP 3
/* Device numbers */
#define DEV_LOW 010 /* lowest intr dev */
#define DEV_HIGH 051 /* highest intr dev */
#define DEV_MDV 001 /* multiply/divide */
#define DEV_MAP 003 /* MMPU control */
#define DEV_ECC 002 /* ECC memory control */
#define DEV_CPU 077 /* CPU control */
/* I/O structure
The NOVA I/O structure is tied together by dev_table, indexed by
the device number. Each entry in dev_table consists of
mask device mask for busy, done (simulator representation)
pi pi disable bit (hardware representation)
routine IOT action routine
*/
struct ndev {
int32 mask; /* done/busy mask */
int32 pi; /* assigned pi bit */
int32 (*routine)(); /* dispatch routine */
};
/* Device flags (simulator representation)
Priority (for INTA) runs from low numbers to high
*/
#define INT_V_DKP 3 /* moving head disk */
#define INT_V_DSK 4 /* fixed head disk */
#define INT_V_MTA 5 /* magnetic tape */
#define INT_V_LPT 6 /* line printer */
#define INT_V_CLK 7 /* clock */
#define INT_V_PTR 8 /* paper tape reader */
#define INT_V_PTP 9 /* paper tape punch */
#define INT_V_PLT 10 /* plotter */
#define INT_V_TTI 11 /* keyboard */
#define INT_V_TTO 12 /* terminal */
#define INT_V_TTI1 13 /* second keyboard */
#define INT_V_TTO1 14 /* second terminal */
#define INT_V_STK 15 /* stack overflow */
#define INT_V_NO_ION_PENDING 16 /* ion delay */
#define INT_V_ION 17 /* interrupts on */
#define INT_DKP (1 << INT_V_DKP)
#define INT_DSK (1 << INT_V_DSK)
#define INT_MTA (1 << INT_V_MTA)
#define INT_LPT (1 << INT_V_LPT)
#define INT_CLK (1 << INT_V_CLK)
#define INT_PTR (1 << INT_V_PTR)
#define INT_PTP (1 << INT_V_PTP)
#define INT_PLT (1 << INT_V_PLT)
#define INT_TTI (1 << INT_V_TTI)
#define INT_TTO (1 << INT_V_TTO)
#define INT_TTI1 (1 << INT_V_TTI1)
#define INT_TTO1 (1 << INT_V_TTO1)
#define INT_STK (1 << INT_V_STK)
#define INT_NO_ION_PENDING (1 << INT_V_NO_ION_PENDING)
#define INT_ION (1 << INT_V_ION)
#define INT_DEV ((1 << INT_V_STK) - 1) /* device ints */
#define INT_PENDING INT_ION+INT_NO_ION_PENDING
/* PI disable bits */
#define PI_DKP 0000400
#define PI_DSK 0000100
#define PI_MTA 0000040
#define PI_LPT 0000010
#define PI_CLK 0000004
#define PI_PTR 0000020
#define PI_PTP 0000004
#define PI_PLT 0000010
#define PI_TTI 0000002
#define PI_TTO 0000001
#define PI_TTI1 PI_TTI
#define PI_TTO1 PI_TTO
/* #define PI_CDR 0000040 */
/* #define PI_DCM 0100000 */
/* #define PI_CAS 0000040 */
/* #define PI_ADCV 0000002 */
Reference in a new issue View git blame Copy permalink