Eduardo Casino added the FDC support. Now not only the SD Shield but also the upd765 based FDC support allows to run CP/M-65 and the native CODOS for KIM-1 operating systems.

Eduardo Casino reverse engineered CODOS for the KIM-1 form teh MTU-130 based CODOS V2

And now Eduardo has ported a version special to the KIM-1 Simulator with K-`013 simulation. See CODOS on his github archive.

The main changes are to support the KIM-1 Simulator character I/O, using the ACIA simulation instead of low level KIM-1, for non-blocking character input.

How to start CODOS

To start using the K-1013 FDC go to the menu settings.

1. Enable MTU K-1013 emulation
2. Copy the folder from the KIM-1 Simulator setup distribution archive called K-1013 to your disk.
3. Choose the Disk images directory pointing to the folder K-1013. You will see the files on Disk 0 etc filled in, DSK files are for operating systems like CODOS

Make sure the first disk mounted is codos17.imd. The IMD files are in the K-1013 folder.

Now you start CODOS.

1. Load the file bootrom.bin into memory with File – Load file in Memory – binary. Start address $FF00
   The file is in the K-1013 folder.
2. Start the console by pressing the TTY Console button on the main window\
3. Start the Simulator by pressing Run/Stop button
4. Start CODOS with
   FF00 G
   and see the CODOS prompt.
   Note that this boot program gets overwritten by CP/M-65, so you have to load it again after a reset.

Working with disks

The disks, stored in files with type .imd are in the K-1013 folder. You can mount/dismount/create disks from the Settings screen.
You can have as many as four.

On the Settings screen the disks mounts are shown. Click on the name of a mounted disk or an empty Mount, to go to the Mount Disk dialog. Mount/Dismount here, in Write or read Only mode.

Press the the three … next to the field Image file to select or create a disk image.
Press New and you get the New diskimage dialog.

There is also the IMU utility in CP/M-65 to work with disks: mount/unmount, list the directory of the K-1013 folder. create/delete and copy.

The option switch

The option switch does this:

It just sets bit 6 in the HSR. For example, the boot PROM can use it to decide whether to boot the OS or just follow the normal KIM 1 boot procedure.

Currently you can cross-assemble programs from a PC, as well as a working C toolchain with llvm-mos. For native development, there’s a basic assembler, a couple of editors, a BASIC, and a byte-compiled Pascal subset and interpreter.

Eduardo Casino ported CP/M-65 to the KIM-1 with an MTU K-1013 FDC, directly connected SD card module, the 1541 drive or Corsham Technology SD CARD/RTC Shield.
And now Eduardo has ported a version special to the KIM-1 Simulator with SD Card/RTC Shield simulation. See his fork of CP/M-65 on his github archive. Several branches are available, development versions with a.o. the KIM-1 Simulator version.
The main changes are to support the KIM-1 Simulator character I/O, using the ACIA simulation instead of low level KIM-1, for non-blocking character input.

How to start CP/M-65

To start using the K-1013 FDC go to the menu settings.

1. Enable MTU K-1013 emulation
2. Copy the folder from the KIM-1 Simulator setup distribution archive called K-1013 to your disk.
3. Choose the Disk images directory pointing to the folder K-1013. You will see the files on Disk 0 etc filled in, DSK files are for operating systems like CP-M/65

Make sure the first disk mounted is diskimage.imd. The IMD files are in the K-1013 folder.

Now you start CP/M-65.

1. 

   Load the file boot.pap into memory with File – Load file in Memory – papertape.
   The file is in the K-1013 folder.

2. Start the console by pressing the TTY Console button on the main window
3. Start the Simulator by pressing Run/Stop button
4. Start CP/M with
   0200 G
   and see the CP/M-65 prompt.
   Note that this boot program gets overwritten by CP/M-65, so you have to load it again after a reset.
   
   

Working with disks

The disks, stored in files with type .imd are in the K-1013 folder. You can mount/dismount/create disks from the Settings screen.
You can have as many as four.

On the Settings screen the disks mounts are shown. Click on the name of a mounted disk or an empy Mount, to go to the Mount Disk dialog. Mount/Dismount here, in Write or read Only mode.

Press the the three … next to the field Image file to select or create a disk image.
Press New and you get the New diskimage dialog.

There is also the IMU utility in CP/M-65 to work with disks from within CP/M-65: mount/unmount, list the directory of the K-1013 folder. create/delete and copy.

Example session

KIM                                                   
0200 D8                                               
KIM                                                   
0200 D8 G                                             
                                                      
CP/M-65 for the KIM-1                                 
                                                      
A>dir                                                 
A: SCRVT100 COM : IMU      COM                        
A: IMU      TXT : SYS      COM                        
A: PASC     PAS : ASM      TXT                        
A: HELLO    ASM : DEMO     SUB                        
A: ASM      COM : ATTR     COM                        
A: BEDIT    COM : CAPSDRV  COM                        
A: COPY     COM : CPUINFO  COM                        
A: DEVICES  COM : DINFO    COM                        
A: DUMP     COM : LS       COM                        
A: STAT     COM : SUBMIT   COM                        
A: MORE     COM : BEDIT    ASM                        
A: BEDIT    TXT : DUMP     ASM                        
A: LS       ASM : CPM65    INC                        
A: DRIVERS  INC : ATBASIC  COM                        
A: ATBASIC  TXT : OBJDUMP  COM                        
A: MKFS     COM : ADM3ADRV COM                        
A: ADM3ATST COM : CLS      COM                        
A: LIFE     COM : QE       COM                        
A: SCRNTEST COM : VT52DRV  COM                        
A: VT52TEST COM : KBDTEST  COM                        
A: MBROT    COM : DS       COM                        
A: DS       TXT : PINT     COM                        
A: PASC     OBB : PLOAD    COM                        
A: HELLO    PAS : IMU3     TXT                        
A: HELLO    SYM                                       
                                                      
A>pint PASC.OBB PASC.PAS PASC.OBS                     
Pascal-M interpreter for CP/M-65: B66F bytes free     
Pascal-M compiler V2k1 for CP/M-65                    
Processing: writeerr                                  
Processing: beginlin                                  
Processing: endline                                   
Processing: error                                     
Processing: stringsi                                  
Processing: nextchar                                  
Processing: insymbol                                  
Processing: enterid                                   
Processing: searchse                                  
Processing: searchid                                  
Processing: getbound                                  
Processing: hexout                                    
Processing: writeout                                  
Processing: bytegen                                   
Processing: wordgen                                   
Processing: genujpen                                  
Processing: plantwor                                  
Processing: skip                                      
Processing: test1                                     
Processing: test2                                     
Processing: intest                                    
Processing: constant                                  
Processing: comptype                                  
Processing: isstring                                  
Processing: simplety                                  
Processing: fieldlis                                  
Processing: typ                                       
Processing: constdec                                  
Processing: typedecl                                  
Processing: vardecla                                  
Processing: paramete                                  
Processing: procdecl                                  
Processing: ldcigen                                   
Processing: ldagen                                    
Processing: lodgen                                    
Processing: condgen                                   
Processing: loadsetc                                  
Processing: cspgen                                    
Processing: incgen                                    
Processing: load                                      
Processing: store                                     
Processing: loadaddr                                  
Processing: falsejum                                  
Processing: calluser                                  
Processing: selector                                  
Processing: variable                                  
Processing: processt                                  
Processing: readproc                                  
Processing: processt                                  
Processing: writepro                                  
Processing: newstate                                  
Processing: releases                                  
Processing: resetrew                                  
Processing: closepro                                  
Processing: assignpr                                  
Processing: getcomma                                  
Processing: ordfunc                                   
Processing: succfunc                                  
Processing: predfunc                                  
Processing: chrfunc                                   
Processing: oddfunc                                   
Processing: eofeolns                                  
Processing: callnons                                  
Processing: call                                      
Processing: opgen                                     
Processing: setexpre                                  
Processing: factor                                    
Processing: term                                      
Processing: simpleex                                  
Processing: expressi                                  
Processing: assignme                                  
Processing: compound                                  
Processing: ifstatem                                  
Processing: casestat                                  
Processing: repeatst                                  
Processing: whilesta                                  
Processing: forstate                                  
Processing: statemen                                  
Processing: body                                      
Processing: block                                     
Processing: stdnames                                  
Processing: enterstd                                  
Processing: enterstn                                  
Processing: enterund                                  
Processing: initiali                                  
Processing: compileh                                  
Processing: compilep                                  
Processing: skipspac                                  
Processing: getword                                   
Processing: findend                                   
Processing: openfile                                  
Processing: closefil                                  
Processing: dumperro                                  
Processing: cpascalm                                  
Compilation successful.                               
No compilation errors PASC.PAS                        
                                                      
A>pload PASC.OBS PASC.OBB                             
Opening input file...                                 
Opening output file...                                
Reading OBP...                                        
Seen 94 procedures                                    
Writing output file...                                
Closing output file...                                
Success.                                              
A>type HELLO.PAS                                      
program HelloWorld;                                   
                                                      
begin                                                 
    writeln('Hello from Pascal!')                     
end.                                                  
                                                      
A>                                                    
A>pint PASC.OBB HELLO.PAS HELLO.OBS                   
Pascal-M interpreter for CP/M-65: B66F bytes free     
Pascal-M compiler V2k1 for CP/M-65                    
Processing: hellowor                                  
Compilation successful.                               
No compilation errors HELLO.PAS                       
                                                      
B>A:pload A:HELLO.OBS HELLO.OBB                       
Opening input file...                                 
Opening output file...                                
Reading OBP...                                        
Seen 1 procedures                                     
Writing output file...                                
Closing output file...                                
Success.                                              
B>A:pint HELLO.OBB                                    
Pascal-M interpreter for CP/M-65: B66F bytes free     
Hello from Pascal!                                    
                                                      
B>                                                    

Replica by Eduardo Casino

The K-1013 emulation uses the same resources as the K-1013 card, but onlky if enabled.

The supporting files for the K-1013 are in the folder K-1013 and contain:

boot.pap
bootrom.bin
codos17.imd
diskimage.imd
mounts.cfg
t.txt

The usage of these files is explained on this page. You can add any file there at wish.

To start using the K-1013 go to the menu settings.

1. Enable K-1013 emulation
2. Copy the folder from the KIM-1 Simulator setup distribution archive called K-1013 to your disk.
3. Choose the Disk images directory pointing to the folder K-1013. You will see the files on Disk 0 etc filled in, IMD files are for operating systems like CP-M/65 and CODOS. See below.
4. Put the KIM-1 in TTY mode on the main window and start the emulator. The usual KIM prompt will appear and you are in the KIM-1 monitor.

Now you either start CP/M-65 or CODOS.

• CP/M-65 on the K-1013 FDC
• CODOS on the K-1013 FDC

One of the cases you saw quite often was this case. It came with one of my KIM-1’s. Small, simple and effective

A perfect solution for an unexpanded KIM-1. Quite popular in education. Add a power supply and you can start using it without exposing the electronics. The LED display was behind a red plexiglas cover, so that improves readability.

One of the cases you saw quite often was this case. It came with one of my KIM-1’s. Small, simple and effective

A perfect solution for an unexpanded KIM-1. Quite popular in education. Add a power supply and you can start using it without exposing the electronics. The LED display was behind a red plexiglas cover, so that improves readability.

Gerben Voort acquired a 6502 system and made photos of the system. A backplane, the BEM bus, a 6502 based CPU card, a double VIA card, a battery backed up memory card.
Read more about Brutech here.

What changed between these revisions?

Not much. The PCB underwent several changes around the logo area, from KIM-1 MOS to Commodore C-MOS. That happened from Rev A to Rev D, indicating the takeover by Commodore of MOS Technology. And some small numbers/artefacts etched in various Revs. The big change was in the clock circuit between the first edition and Rev A.

Some have serial numbers, the first ones on the back on the right, later had stamped/written numbers like PAxxx (Palo Alto) and SCxxx (Santa Clara) of Commodore production facilities

Clock circuit change
The first batch of KIM-1 suffered from the issue that the clock would not start. It was fixed in Rev A, with more components and a change in PCB layout.

Read more