OS-9 GMX for GIMIX

The GMX boot disk was recovered from an Internet archive. The distribution is notable for the fact that some utilities are designed for an 80-column terminal. This applies to Dir, Mdir, Login etc.

For ImageDisk packaged files, see my IMD repository.

Empty formatted disk (GMX_DSDD_80_T0SD.Empty-hfe.zip) (55,237 bytes): Dual-sided, 80 tracks, 16 sectors/track. GMX formats track 0 on side 1 as single-density (FM) format with 10 sectors and all other tracks as MFM format with 16 sectors. This is done to be compatible with older floppy disks.
Empty formatted disk (GMX_SSSD_80_Empty-hfe.zip) (33,514 bytes): FM format, single density, single-sided, 80 tracks, 10 sectors/track, Interleave 3.
GIMIX 2-Port RS-232 Serial Interface (GIMIX 2-Port RS-232 Serial.pdf) (1,135,327 bytes)
GIMIX 6809+ CPU Board (GIMIX_6809_CPU.pdf) (5,369,897 bytes)
GIMIX DMA Double Density Disk Controller #68 (GIMIX DMA Disk Controller.pdf) (3,449,011 bytes)
GIMIX DMA III Disk Controller #68 Schematic (GIMIX DMA III Disk Controller Schematic.pdf) (182,469 bytes)
GIMIX DMA III Double Density Disk Controller #68 (GIMIX DMA III Disk Controller.pdf) (1,098,632 bytes)
GIMIX DMA SASI Interface Board Users Manual (GIMIX DMA SASI Interface Board.pdf) (464,642 bytes)
GIMIX System Configuration Information Dec 82 (Gimix System Configuration Information.pdf) (586,918 bytes)
List of contents of diskette (OS9_V1.2.pdf) (213,080 bytes)
OS-9 Boot disk for GIMIX system (OS9_GMX_V1.2.dsk) (204,800 bytes): This is a disk for OS-9 Level I v. 1.2.
OS-9 GMX III Manual Addenda - Version 1.2 19830914 REV J (OS-9 GMX III Manual Addenda.pdf) (1,034,119 bytes)
OS-9 GMX III Support ROM - Users Manual - REV C (OS-9 GMX III Support ROM.pdf) (346,578 bytes)
OS-9 Version 1.2 Announcement (GIMIX_OS-9_Ver_1.2_Ann.pdf) (437,712 bytes)
Reading and Writing Color Computer OS-9 Disks on GIMIX OS-9 Systems - REV B.pdf (Reading and Writing Color Computer OS-9 Disks on GIMIX OS-9 Systems - REV B.pdf) (62,384 bytes)
Software: BASIC09 for GMX (GMX_SSSD_80_Basic-hfe.zip) (158,075 bytes): Contains Basic09, RunB, various utilities and example BASIC programs.
Software: Dynacalc 4.7.3 (GMX_SSSD_80_Dynacalc-hfe.zip) (95,307 bytes): Configured for VT100/ANSI terminal
Software: Stylograph for GMX (GMX_SSSD_80_Stylo-hfe.zip) (85,009 bytes): Configured for VT100/ANSI terminal
Software: Various tools - asm, date, setime, kermit, archivers (GMX_SSSD_80_Tools-hfe.zip) (216,307 bytes): Y2K updates

The GIMIX Inc. company was located at: 1337 W. 37th, Place, Chicago, IL 60609.

Level 1 ROMs

The only OS-9 software that has been saved for GIMIX is a boot floppy disk and two sets of ROMs for respectively Level I system version 1.1 and version 1.2. GIMIX is however a profile on Microware's source code disk and it was also possible for me to assemble a new kernel for version 1.2. The profile assumes a RAM limit at address $E000, a 58167 real time clock device at $E231 and will initialize a DAT register located from $FFF0 to $FFFF.

OS9p1 boot rom - level 1 v. 1.1 (os9p1-l1v11.bin) (2,048 bytes): Part 1 of the kernel to be available in ROM at address $F800. This is a module from OS-9 version 1.1. It can also be found on the Internet under the name os9l1v11.u6
OS9p1 boot rom - level 1 v. 1.2 (os9p1-l1v12.bin) (2,048 bytes): Part 1 of the kernel to be available in ROM at address $F800. This is a module from OS-9 version 1.2. This module has been built from the OS-9 source distribution. It is to be used when a DAT is present and the devices are located at $FE000 and the kernel at $FF000.
OS9p1 boot rom - level 1 v. 1.2 (OS-9_GMX_1_v1.2_p1_1982_msc.bin) (2,048 bytes): Part 1 of the kernel to be available in ROM at address $F800. This is a module from OS-9 version 1.2. It was extracted from a ROM. The only difference from os9p1-l1v12.bin is in the DAT initialisation. If a DAT is present, then the devices are to be available at $0E000 and the kernel at $0F000.
OS9p2, Init and Boot - level 1 v. 1.1 (os9p2-l1v11.bin) (2,048 bytes): Part 2 of the kernel to be available in ROM at address $F000. The Boot module will load the rest of the kernel from a GIMIX #68 floppy disk device. This is a module from OS-9 version 1.1. It can also be found under the name os9l1v12.u7
OS9p2, Init and Boot - level 1 v. 1.2 (OS-9_GMX_1_v1.2_p2-68_1982_msc.bin) (2,048 bytes): Part 2 of the kernel to be available in ROM at address $F000. The Boot module will load the rest of the kernel from a GIMIX #68 floppy disk device. The only difference from os9p2-l1v12.bin is that the Boot module has a higher edition number and is 15 bytes longer.
OS9p2, Init and Boot - level 1 v. 1.2 (os9p2-l1v12.bin) (1,876 bytes): Part 2 of the kernel to be available in ROM at address $F000. The Boot module will load the rest of the kernel from a GIMIX #68 floppy disk device. These modules have been built from the OS-9 source distribution. Note that it is not padded like the others to be 2048 bytes.

Level 2 ROM

OS-9 Level 2 is for computers with 128 KB RAM or more. It allows full use of the 64 KB address space for each process.

Installing OS-9 Level 2 on GIMIX

Other resources

GIMIX on Bitsavers