Table of Contents
BIOS 3.4 – released 20-Oct-2020 – DO NOT USE
[BIOS 3.4 is a minor update to BIOS 3.3; the update to 3.4 is optional]
* A major bug has been found in this release. The floppy disk driver no longer works. Use version 3.3 instead. *
- Minor segment changes to the FPU emulator. This is not a bug fix.
- Bug fix in INT 16h, FN 05 that affects the FreeDOS loader.
- Cosmetic update to SETUP for the NVRAM backup. This fix is long overdue, and makes the SETUP choice very simple.
For the SBC-188 v1/v2 boards use these binaries: :software:firmwareos:sbc-188:v1distro-3.4.zip
For the SBC-188 v3 board use these binaries: :software:firmwareos:sbc-188:v3distro-3.4.zip
Each binary distribution file contains a README with instructions for selecting the binary files depending upon the Terminal you are using: ANSI, Wyse, VGA3 or CVDU. Each one of those zip files contains .bin files for ROMs of 3 sizes. The basic ROM is 64K. But larger chips may be burned; they just have unused, unburned, space in them.
FDISK86, compatible with FDISK68 and FDISK80, is here: :software:firmwareos:sbc-188:fdisk.zip
MSDOS version of ADVENTURE is here: :software:firmwareos:sbc-188:adv350kp.zip
And EMM4MEM.SYS for the 4MEM Expanded Memory board is here: :software:firmwareos:sbc-188:emm4mem.zip
The common source code to the above is contained here: :software:firmwareos:sbc-188:bios-3.4.0_src.tar.gz