6809 FLEX Plus 10TM
(This page is still under construction.)
(Currently in development)6809 FLEX Plus 10TM is an enhanced version of TSC 6809 FLEX v3.02, created by David C. Wiens (dba Sardis Technologies).
6809 FLEX Plus 10TM currently consists of 4 components:
- 6809 FLEX Plus 10TM Core
- 6809 FLEX Plus 10TM Driver Executive
- 6809 FLEX Plus 10TM ST-2900 Driver Package
- 6809 FLEX Plus 10TM OF_Link for CoCo 3 (FLEX under OS-9)
Its Core and the Driver Executive can be used in most 6809 FLEX systems, while the driver package is specific to the ST-2900 system from Sardis Technologies, and OF_Link is specific to the CoCo 3.
6809 FLEX Plus 10TM Core
Features:
- supports 10 drives (0..9) instead of only four (0..3)
- supports adding time of file creation to all new directory entries (optional -- requires a timer or clock chip and matching driver)
- can replace the existing FLEX.COR file in most 6809 systems
- FLEX.COR still fits into its original address ranges of $C000-$CCBF, $CCF8-$D36F, $D3FD-$DDFF, so should be compatible with most existing console drivers and disk drivers
- includes the NEW-COR.CMD program that lets you quickly and easily replace the old FLEX.COR code in your existing FLEX.SYS file with new 6809 FLEX Plus 10 code, while retaining your existing console driver and disk driver code
- includes the BINCOPY.CMD program that lets you separate FLEX.SYS into FLEX.COR and the drivers (for console and disk)
- includes the KWIKLOAD.CMD program that installs a faster replacement for the FLEX LOAD ($CD30) routine, speeding up program loads from RAM-Disks by up to 8x!
- includes a sample disk driver for a tiny RAM-Disk that occupies some RAM below MEMEND, that can be installed as drive 9, and shows how to implement a driver for drives 4..9 without using the new Driver Executive
- includes a sample program to implement time of file creation, that you can modify for your particular system configuration
- includes new versions of several existing commands, modified to support 10 drives, properly handle dates after 1999, and display file creation times
- FLEX.COR is based mostly on original genuine commented TSC source code for 6809 FLEX v3.02 as found in the FLEX-4-UniFLEX archives, not on poorly commented disassemblies
- all source code files are supplied, both for the new improved version, as well as for the original unmodified TSC FLEX v3.02 source code
6809 FLEX Plus 10TM Driver Executive
Features:
- can be used on most 6809 FLEX systems, but requires all disk drivers to be modified
- allows drivers and physical drives to be associated with any of the 10 FLEX logical drive numbers (0..9)
- includes the SYSGEN.CMD program that creates new FLEX.SYS boot files; it allows selecting which drivers and drives to include and where to load them, and which FLEX logical drive number to assign to each physical drive
- includes the DRVSHOW.CMD program to display details of installed drivers and drives, and the DRVSET.CMD program to change some settings
- includes a driver for a small RAM-Disk that uses a portion of user memory to implement up to 10 virtual drives for testing and demo purposes
- source code files are included
6809 FLEX Plus 10TM ST-2900 Driver Package
Features:
- greatly improved from the original set of drivers supplied in the September 1984 version of the ST-2900 FLEX Conversion Package
- uses the new Core and Driver Executive
- new CLOCK module supplies a software real-time-clock (RTC) that increments at 100Hz, using interrupts from the 6522/VIA Timer 1 on the FDC board
- new driver for the ST-2900 NVRAM/RTC board for NVSRAM-Disk, EEPROM-Disk, and RTC
- new driver for DSKdrv/DSKserv (similar function as DriveWire or FLEXnet) to access up to four virtual disk images (.DSK files) on a Windows host computer, using DUART port B @ 115200 bps
- modified and improved drivers for floppy disk controller, and for RAM-512 board
- all source code files are included
6809 FLEX Plus 10TM
OF_Link for CoCo 3
(FLEX under OS-9)
Version 2.0 of OF_Link will also use the new Core and Driver Executive, to support 10 drives, as well as file timestamping.
"FLEX" was a trademark of Technical System Consultants (TSC).
"6809 FLEX Plus 10" is a trademark of David C. Wiens, dba Sardis Technologies.
"OS-9" is a registered trademark of Microware LP.
"Radio Shack" and "Color Computer" are trademarks of Tandy Corp.
Last revised 2025-Sep-04 12:42 PDT.
Copyright 2018- David C. Wiens.
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