v0.8b0

Extended Keyboard support - Pre-release Version 0.8b0 (beta) - 01/17/26

New Features

• Complete Extended keyboard (INT 16h, AH=5h, 10h-12h) support #10
• Ctrl Alt + speed switch hot keys toggle three speeds on FE2010A #25

The KB_EXT option implements 100% compatible INT 16h extended keyboard support.

Testing builds

Build	Download	Desc
Standard/Turbo	8088, V20	Supports Turbo (standard Ctrl-Alt-+ speed switching), best choice for most systems.
XT 5160	8088, V20	Best for standard 4.77MHz XT/5160 or clone PCs.
ST-12	8088, V20	Juko ST-12 / UNIQUE UX-12 / TD3300A chipset

NuXT V2.0

• Supports: high-density floppy, RTC, extended keyboard and ROM SETUP

Build	Download	Desc
GLaBIOS only	8088 V20	32K high F800 image use UFLASH-p -i glabios.rom -a F800
GLaBIOS 128K Hybrid	8088/V20	V20 low bank, 8088 high bank
GLaBIOS / 8088_bios 1.0.2	V20	8088_bios low bank, GLaBIOS high bank

Note

Due to 8 KB standard ROM size restrictions, enabling extended keyboard support (KB_EXT) disables POST_HD_PARMS, POST_OPT_ROM, RANDOM_TAGLINE, LIGHT_PEN and CASSETTE.

However, there are two new ways to add extended keyboard while retaining these features:

1. Increase the size of the BIOS ROM image using ROM_SIZE_K to 9k, which will relocate the keyboard code into the upper ROM space. Note: this will require a ROM (or ROM file image) larger than 8 KB to contain and the gla2rom.py will need the -s 9216. Note 2: the current release of JWasm seems to have issues with this ORG relocatement. Until this is fixed MASM is recommended.
2. If using GLaDISK with high density floppy drives, removing floppy support from the BIOS ROM using FDC_ENABLE = 0 will build with extended keyboard support and all of the above features.