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Notes For V3.9

Browse Source 
The makefile now works for Linux and most Unix's. However, for Solaris
and MacOS, you must first export the OSTYPE environment variable:

> export OSTYPE
> make

Otherwise, you will get build errors.

1. New Features

1.1 3.9-0

1.1.1 SCP and libraries

	- added *nix READLINE support (Mark Pizzolato)
	- added "SHOW SHOW" and "SHOW <dev> SHOW" commands (Mark Pizzolato)
	- added support for BREAK key on Windows (Mark Pizzolato)

1.1.2 PDP-8

	- floating point processor is now enabled

2. Bugs Fixed

Please see the revision history on http://simh.trailing-edge.com or
in the source module sim_rev.h.

3. Status Report

This is the last release of SimH for which I will be sole editor. After this
release, the source is moving to a public repository:

under the general editorship of Dave Hittner and Mark Pizzolato. The status
of the individual simulators is as follows:

3.1 PDP-1

Stable and working; runs available software.

3.2 PDP-4/7/9/15

Stable and working; runs available software.

3.3 PDP-8

Stable and working; runs available software.

3.4 PDP-10 [KS-10 only]

Stable and working; runs available software.

3.5 PDP-11

Stable and working; runs available system software. The emulation of individual
models has numerous errors of detail, which prevents many diagnostics from
running correctly.

3.6 VAX-11/780

Stable and working; runs available software.

3.7 MicroVAX 3900 (VAX)

Stable and working; runs available software. Thanks to the kind generosity of
Camiel Vanderhoeven, this simulator has been verified with AXE, the VAX
architectural exerciser.

3.8 Nova

Stable and working; runs available software.

3.9 Eclipse

Stable and working, but not really supported. There is no Eclipse-specific
software available under a hobbyist license.

3.10 Interdata 16b

Stable and working, but no software for it has been found, other than
diagnostics.

3.11 Interdata 32b

Stable and working; runs 32b UNIX and diagnostics.

3.12 IBM 1401

Stable and working; runs available software.

3.13 IBM 1620

Hand debug only.  No software for it has been found or tested.

3.14 IBM 7094

Stable and working as a stock system; runs IBSYS. The CTSS extensions
have not been debugged.

3.15 IBM S/3

Stable and working, but not really supported. Runs available software.

3.16 IBM 1130

Stable and working; runs available software.  Supported and edited by
Brian Knittel.

3.17 HP 2100/1000

Stable and working; runs available software. Supported and edited by
Dave Bryan.

3.18 Honeywell 316/516

Stable and working; runs available software.

3.19 GRI-909/99

Hand debug only.  No software for it has been found or tested.

3.20 SDS-940

Hand debug only, and a few diagnostics.

3.21 LGP-30

Unfinished; hand debug only. Does not run available software, probably
due to my misunderstanding of the LGP-30 operational procedures.

3.22 Altair (original 8080 version)

Stable and working, but not really supported. Runs available software.

3.23 AltairZ80 (Z80 version)

Stable and working; runs available software. Supported and edited by
Peter Schorn.

3.24 SWTP 6800

Stable and working; runs available software. Supported and edited by
Bill Beech

3.25 Sigma 32b

Incomplete; more work is needed on the peripherals for accuracy.

3.26 Alpha

Incomplete; essentially just an EV-5 (21164) chip emulator.

4. Suggestions for Future Work

4.1 General Structure

	- Multi-threading, to allow true concurrency between SCP and the simulator
	- Graphics device support, particularly for the PDP-1 and PDP-11

4.2 Current Simulators

	- PDP-1 graphics, to run Space War
	- PDP-11 GT40 graphics, to run Lunar Lander
	- PDP-15 MUMPS-15
	- Interdata native OS debug, both 16b and 32b
	- SDS 940 timesharing operating system debug
	- IBM 7094 CTSS feature debug and operating system debug
	- IBM 1620 debug and software
	- GRI-909 software
	- Sigma 32b completion and debug
	- LGP-30 debug

4.3 Possible Future Simulators

	- Data General MV8000 (if a hobbyist license can be obtained for AOS)
	- Alpha simulator
	- HP 3000 (16b) simulator with MPE
This commit is contained in:
Mark Pizzolato
2012-03-18 09:43:12 -07:00
parent a9fd3dd518
commit 3071894c78
158 changed files with 32250 additions and 15125 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
PDP11/pdp11_io.c
View File

@@ -1,6 +1,6 @@
/* pdp11_io.c: PDP-11 I/O simulator
Copyright (c) 1993-2008, Robert M Supnik
Copyright (c) 1993-2011, 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"),
@@ -23,6 +23,7 @@
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from Robert M Supnik.
12-Dec-11 RMS Fixed Qbus interrupts to treat all IO devices as BR4
19-Nov-08 RMS Moved I/O support routines to I/O library
16-May-08 RMS Added multiple DC11 support
Renamed DL11 in autoconfigure
@@ -79,6 +80,11 @@ static const int32 pirq_bit[7] = {
INT_V_PIR5, INT_V_PIR6, INT_V_PIR7
};
static const int32 int_internal[IPL_HLVL] = {
INT_INTERNAL7, INT_INTERNAL6, INT_INTERNAL5, INT_INTERNAL4,
INT_INTERNAL3, INT_INTERNAL2, INT_INTERNAL1, 0
};
/* I/O page lookup and linkage routines
Inputs:
@@ -118,27 +124,32 @@ if (iodispW[idx]) {
return SCPE_NXM;
}
/* Calculate interrupt outstanding */
/* Calculate interrupt outstanding
In a Qbus system, all device interrupts are treated as BR4 */
int32 calc_ints (int32 nipl, int32 trq)
{
int32 i;
int32 i, t;
t_bool all_int = (UNIBUS || (nipl < IPL_HMIN));
for (i = IPL_HLVL - 1; i > nipl; i--) {
if (int_req[i])
t = all_int? int_req[i]: (int_req[i] & int_internal[i]);
if (t)
return (trq | TRAP_INT);
}
return (trq & ~TRAP_INT);
}
/* Find vector for highest priority interrupt */
/* Find vector for highest priority interrupt
In a Qbus system, all device interrupts are treated as BR4 */
int32 get_vector (int32 nipl)
{
int32 i, j, t, vec;
t_bool all_int = (UNIBUS || (nipl < IPL_HMIN));
for (i = IPL_HLVL - 1; i > nipl; i--) { /* loop thru lvls */
t = int_req[i]; /* get level */
t = all_int? int_req[i]: (int_req[i] & int_internal[i]);
for (j = 0; t && (j < 32); j++) { /* srch level */
if ((t >> j) & 1) { /* irq found? */
int_req[i] = int_req[i] & ~(1u << j); /* clr irq */