Software for your emulating needs.
| File | Description |
| DeHex.zip DeHEX utility *Updated 02/06/2023 |
Converts OSI (or any) HEX dump files into binary
Use this to convert OSI disk HEX dumps to binary Compiled to run in Windows Console under x86 and x64 Usage: DeHex infile outfile or DeHex < infile > outfile Now output file defaults to source filename.bin, Drag src onto dehex & have it decode! Includes source and Visual Studio project files & makefile for Mac/Linux |
| A65v125w.zip A65 v1.25 65C02 Assembler *Updated 6/25/2023 Previous version:A65v124w.zip |
A65 macro assembler for 65C02/6502
Assembles source files written using standard MOS Technology assembler syntax Derived from as6502 by J. H. Van Ornum and J. Swank, updated by Ed @ dxforth.mirrors.minimaltype.com Use this to build OSI disk dump and other utilities Compiled to run in Windows Console under x86 and x64 or Mac/Linux console Updated to be more compatible with OSI Macro Assembler and can generate OSI 65V, OSI 65A object files. *V125 Adds conditional assembly directives .IF .ELSE .ENDIF in addition to .IFE .IFN previously used Includes source, makefile for Mac/Linux and Visual Studio project files for Windows |
| sim6502_OSI.zip 6502 simulator V1.3.5.4 by Michal Kowalski updated by Daryl Rictor *Updated 8/26/2023 Source:sim6502_OSI source.zip |
Sim6502 is a 6502 Macro Assembler/Disassembler/Editor for 6502/65C02/65816 and 6502 simulator
Sim6502 was originally written by Michal Kowalski, later updated and maintained by Daryl Rictor This version has been modified to read & write OSI 65V & 65A Monitor file formats (.65a/.lod) as well as OSI/MOS Checksum formats This program has been compiled to run on any version of Windows from Windows 2000 to the latest version.
*V1.3.5.4 - Fix C1P serial port read, validate stored tool window coordinates to the visible screen(s)
*V1.3.5.3 - Includes built-in OSI/UK101 Simulator - display/keyboard/serial. screenshot |
| BootThis.zip Bootable floppy disk creator *Updated 12/11/2024 |
Make bootable floppy image from OSI object file/executable
Convert binary data/OSI assembler executable into bootable floppy image for 5.25" or 8" systems, video or serial based. Data can be loaded anywhere into system memory except zero page. Generated floppy image is compatible with OS65D format so disk can be copied with standard copiers although it isn't loadable with OS65D. *V1.4 correct overwriting $02xx addresses V1.4.1 fixes 65A processor status reg for Go address *V1.2 correct 65A Go address for restarting from monitor, V1.2.2 correct header on last track *V1.1 add track header for blank tracks, add raw boot track inclusion option Contains makefile for Mac/Linux and Visual Studio project files for Windows. |
| OSIALod_v1.08.zip OSIALod Utility *V1.08 Updated 02/10/2023 |
Converts binary object files into OSI 65V/65A loadable files
Can generate '.lod' files for C1/C2/C4 or serial loadable files for C3 systems Can also generate MOS checksum loaders and other formats Use this to generate OSI loadable files from assembled binary Compiled to run in Windows Console under x86 and x64 Includes source and Visual Studio project files and makefile for Mac/Linux *Improved OS65A loading & auto-start; Corrected possible unexpected IRQ on 65A at exec time; Removed extra NUL in output |
| OSIKCS.zip OSIKCS_v1.3.zip exact 1200/2400Hz update OSI Kansas City Standard audio encoder/decoder |
Convert sampled OSI Audio Cassette data into files or files into OSI audio
OSIKCS is a utility that converts audio data stored in the Kansas City Standard format to binary, and binary to KCS audio. Input audio WAV PCM 8/16/32bit 20K+ samples per second format for decoding or encode any data into 300Bps 22050 8bit mono audio A variety of options allow for 600bps format, appending of data or WAV files & processing of EOL into OSI BASIC format. Uses fixed waveform data when generating audio which compresses greatly, based on ED's CUTS encoder. Includes Windows console & Mac build, source and Visual Studio project files. |
| DeToken.zip OSI BASIC detokenizer/retokenizer |
Convert OSI tokenized binary BASIC programs to text or convert text to tokenized OSI BASIC
Useful for converting memory dumps or disk images tracks into human readable BASIC text Supports 7 different OSI BASIC varieties for 5.25" and 8" diskettes including OSI BASIC in ROM, OS65DV3.1, OS65DV3.3, Plot BASIC, OS65UV1.44, OS65UV1.42 (some OSI versions use the same token set) Compiled to run in Windows Console under x86 and x64 Includes source and Visual Studio project files |
| OSIHFE_V2.21.zip OSI Disk & Flash Floppy convertor V2.21 OSIHFE_V2.22B.zip (Beta Version *5/13/24) OSIHFE.zip (old version V1.4f) *Updated 5/13/2024 |
Convert OSI Disk Dump Images to FlashFloppy HFE RAW FM Floppy Images and back
* Processes SCP (SuperCopyPro) flux images & Hex Dumps * Converts between HxC/HFE Flash Floppy Emulator disk files and OSI OS65D, OS65U, Hexdos, DOS/65, CP/M, & P-System disk images * Can also be used to test, identify, show contents, & clean up OSI disk images by removing noise bytes and bad data. Compiled to run in Windows Console under x86 and x64 Includes source and Visual Studio project files as well as a Mac & Linux build. |
| File | Description |
| DiskTool.zip OSI Disk Dump & Writer program for all disk systems *Updated 07/13/2022 V1.4 added bootable floppy images |
OSI Disk Tool
A program for all OSI disk systems to dump OS65D 5.25" or 8" & compatible or OS65U 8-inch disk images, and write OSI disk images back to floppies! Requires 16K working RAM. Replaces OSIDump programs. Uses XModem/CRC to upload disk images to OSI. Automatically cleans garbage data from disk images to generate perfect copies. Compatible with OS65U, HexDos, Dos/65, OS65D and similar formats (OSI CPM, UCSD P-System, PicoDos, Fourth) *Added vanilla Xmodem for systems without Xmodem/CRC. Includes programs for video based and serial based OSI Machines, floppy disk images for faster booting, along with 6502 assembler source & build tools. Ensure data transfer to OSI uses 8N2 serial word format for best results! |
| C3dump.zip Disk dump for OSI C3 (serial) systems *Updated 3/1/2021 *bug fixes |
C3 Dump + HD
A program for OSI serial systems to dump OS65D & compatible or OS65U 8-inch disk images. Requires only 8K working RAM. OS65U uses both 8E1 and 8N1 serial word formats on tracks. This dump program is aware of these changes and can dump either OS65D (home) or OS65U (business) formats. Transfer via ASCII HEX dump or Xmodem/Xmodem CRC. To load via connected serial cable, start OSI, enter Monitor, Press 'L', send this file with your favorite terminal program, and press R then G if it does not start automatically. *Add Standard Xmodem, fix Xmodem protocol negotiations, fix CD-7 header checksum calculation & time-out Now includes OSI CD-7 Hard Disk Support to test disk and dump contents. Includes working serial load program, and 6502 assembler source & build tools. Ensure data transfer to OSI uses 8N2 serial word format for best results! |
| OSIDump.zip Universal disk dump for C1/C2/C3/C4/C8 systems! *Updated 07/30/2023 |
Universal OSIDump
A program for OSI floppy disk systems to dump 5.25 or 8-inch disk images. Requires only 8K working RAM. This dump program works on OSI C1/C2/C4/C8 video based systems and serial systems. Transfer via ASCII HEX dump or Xmodem/CRC. To load via connected serial cable, start OSI, enter Monitor, Press 'L', send osidump.lod or osidump.65A file with your favorite terminal program. *Added vanilla Xmodem for systems without Xmodem/CRC. Includes working OS65V & OS65A monitor load programs, and 6502 assembler source. Ensure data transfer to OSI uses 8N2 serial word format for best results! |
| TestMem.zip Memory Test program for all systems *Updated 9/10/2023 Added disk images & moved C4P display top down |
Tiny 1K Universal Memory Test program for C1/C2/C3/C4/C8 & OSI400 systems
A program for OSI systems to test memory, based on the program published in the OSI Small Systems Jounal Vol.1 No.3 Sept 1977. Requires only 1K RAM to run! The first $400 bytes are used by this program, the rest are available for testing. Includes versions for OSI video based systems and C3 serial systems. It includes assembler source, as well as loadable files for serial, cassette and disk systems. |
| floppytest_v1.04u.zip David Gesswein's excellent OSI floppy test *Updated 08/2022 Added bootable disk images, UK101 support |
David Gesswein's OSI floppy disk test program for 5.25" and 8" drives reqs. up to 16K RAM
A program for OSI systems to test floppy disk drives. Auto configures for serial and video systems. You can use it via serial on video based systems such as C1PMF that has a smaller display, which allows you to see complete diagnostic information. Can check RPM speed, disk interface signals, Read & Write ability and more. Includes versions for OSI video based systems, C3 serial systems and bootable disk images with assembler source. This is an update to the original floppytest V1.04, with better UK101 support, keypress fix for video systems. Visit David's OSI Floppy Test home for the official version and detailed information |