| ILLUSTRATING MORE SHADOWS focusing on education and interesting practical aspects of sundial design |
| Book purchase options are here... |
| Email comments or questions to the author at: illustratingshadows at yahoo dot com |
| programming JAVA sundials sun dials |
| LISP for ProgeCAD (or AutoCAD) |
| MAIN TURBO-CAD FILE PAGE ( vbs macros, notes on programming, and tcw files ) |
| IBM 1401 SPS system There are several simulators for the IBM 1401, this one supports SPS, check:- http://www.members.optushome.com.au/intaemul/Emul1401.htm Download B1401D15.ZIP and unzip it. The author makes the source (Delphi) available, and welcomes your playing around with the sim. This is a complete system, namely the simulator, and an SPS assembler (two phase). Useful materials may be found at:- http://www.bitsavers.org/pdf/ibm/140x/ J28-200-1_Jan60_1401asm.pdf good insights A24-1403-5_1401RefMan_Apr62.pdf details of op codes A24-3071-2_1401_specFeature.pdf special features R29-0044-2_1401SPStraining.pdf fair details I programmed the IBM 1401 back in the mid 1960s before moving on to the IBM 360, then later the IBM 370. This is presented as an echo of what programming was like over 40 years ago. I also wrote a simulator for the IBM 1401 to run on an IBM 360 model 30, this was because the simulators available then did not support the sterling feature, and my company had old 1401 programs using sterling. |
| Oct 7, 2009 Happy 50th Birthday 1401 ~ Oct 5, 2009 |
| IBM 7094 sundial stuff also |
| IBM 1401 Autocoder system A GUI simulator for Windows with an integrated editor, autocoder, and execution system is here: http://www.ed-thelen.org/1401Project/SimulatorStatus.html#SIMH and about half way down there is a section entitled "Ron Mak's Graphical User's Development Environment "ROPE". Autocoder came after SPS (see next simulalor) and the author's history of the ROPE simulator is fascinating. Of interest is:- http://www.apropos-logic.com/ROPE1401v07.zip this should be downloaded into a file in the root directory or into folders whose names have no blanks in them. Do not unzip it into a folder elsewhere as the Autocoder assembler will fail with ERROR 3. I created a folder in the root directory called: "c:\z-rope1401v7", placed this zip there, and unzipped the file. There is a BAT file, which should be double clicked. This needs the JAVA system installed. It also works first time. It is so nice when programs work first time and you don't have to fiddle with them. The BAT file brings up an IDE with an editor and in it you may code an Autocoder program. And you may assemble it, which brings up the assembler window. |
There are three graphical simulators available.
Like the IBM 360 simulator I wrote using Lazarus, my
IBM 1401 one (open source) works with the HDIAL and
VDIAL programs in the ZIP file, see below. I have
Autocoder and SPS programs, and some use "cards"
some use switches. This works in Vista Win64 as well
as Win32 on XP. Lazarus itself is also cross platform.
Another was written in JAVA, and the Autocoder which is
integrated into a GUI IDE, was written in FORTRAN.
Another is oriented towards SPS, and it runs the two pass
SPS system, and was written in Delphi. All these
simulators are small and work first time.
Like the IBM 360 simulator I wrote using Lazarus, my
IBM 1401 one (open source) works with the HDIAL and
VDIAL programs in the ZIP file, see below. I have
Autocoder and SPS programs, and some use "cards"
some use switches. This works in Vista Win64 as well
as Win32 on XP. Lazarus itself is also cross platform.
Another was written in JAVA, and the Autocoder which is
integrated into a GUI IDE, was written in FORTRAN.
Another is oriented towards SPS, and it runs the two pass
SPS system, and was written in Delphi. All these
simulators are small and work first time.
| OTHER IBM 1401 RESOURCES The IBM 1401 Restoration Project and Computer History Museum |
| free IBM 1401 Autocoder & SPS complete system (Simon's GUI 1401 simulator together with SPS and Autocodes sundial V and H dial programs) is like my Lazarus (a free Pascal open source IDE) based IBM 360 system simulator, includes an SPS and Autocoder 2 pass assembler, loader, and simulator with trace and dump facilities. Implementation: all opcodes except multiply and divide ( multiply, divide, sin/cos/tan/cot/atn routines provided), and R/W/P combinations, and chaining where the 1401 implemented it The HDIAL and VDIAL programs for this simulator are fully functional. True arithmetic on signed numbers works, and MN, MZ, MCW, LCA, ZA, ZS, A, S, MA, and C fully support the signs. Arithmetic handles up to 99 character fields but this can easily be expanded dramatically as the only limit is one parameter. BLC, BSS B-G, BH, BL, BE, BU, BIN are supported, as are index registers 1-3, and console support (MU). HDIAL/VDIAL parameters are from the "card reader", and HDIALSW uses the sense switches as does HDIAL.SPS. The dial programs can do east or west of meridian. You can use Lazarus to extend this system, and to change core size which is currently set to 8192 as well as other system parameters. The 1401 panel in the simulator shown to the right, allows the CE or customer engineer to change device:file names in the configuration and loop detect limit. The simulator assumes the source code is Autocoder, but you can tell it the code is SPS when it will convert SPS to Autocoder on the fly. If you download the ZIP file, unzip it and click on ibm1401project.exe then it runs the default program which is HDIAL. You just do POWER ON and keep hitting START. All other switches and buttons are optional. A true turnkey system but with the option to configure only if you want to. Oh, the SPS HDIAL output differs from the Autocoder program by a couple of degrees because it uses BE/BU and not BH/BL in its multi pass ATAN routine, BH/BL was a special feature on the 1401. Notes Simulator & programs for Windows XP this works on win32 XP and also on Vista win64 Please let me know by email if you like this simulator. Oct 5, 2009 was the 50th anniversary of the IBM 1401 announcement. |
| Illustrating Time's Shadow ~ ISBN 0-9765286-8-1 plus 0-9765286-9-X ~ Lib Cong 2005900674 plus 2006930654 Merges Illustrating Shadows and Illustrating More Shadows, deletes duplicated material, and complex techniques are replaced by easier methods, adds much new material. Hands on, empirical, geometric, trigonometric, CAD, and spreadsheet dial design for small dials plus garden dials using common masonry supplies, clay, and glass, with emphasis on many calendar line techniques, and inclined decliners, while providing details on the use of DeltaCAD programming including the animation of many sheets as parameters vary. Get CD here. Case studies abound with associated problems solved, and cover the infamous inclined decliner, as well as all the other kinds of outdoor dials. You get a free CD of booklets, spreadsheets, VRML/WRL files, templates, etc with the book. The CD has all books and booklets and programs along with source code. PayPal here to buy. |
This page, at the bottom, has links to IBM 1401 manuals.
http://www.ed-thelen.org/1401Project/SimulatorStatus.html
IBM 1401 manuals:
http://www.bitsavers.org/pdf/ibm/140x/
http://www.ed-thelen.org/1401Project/SimulatorStatus.html
IBM 1401 manuals:
http://www.bitsavers.org/pdf/ibm/140x/