Since I have the famous XT clone Juko Super Turbo motherboard, I decided to write some new small DOS tools related to its chipset (VDL C1 and clones like Tamarack TD3300A, NEC 567 and Hitachi HG62E22R36FS) features. Only natural intelligence and manually written C and inline x86 assembly code were used. No "ai" involved. The tools do not work on things like 86Box, since these emulators do not have proper VDL C1 chipset emulation.

Download latest version 1.2PE

1) JSTWSS "Juko ST Wait States Setter" is a DOS tool for reading and changing the wait states values through VDL C1 chipset registers (it is partially based on JSTWSR code).

JSTWSS looks like this:

The tool is self-explanatory when "/?" or "/H" command line switch is used. If no switches are used, it only shows the current wait states by reading the chipset registers.

2) JSTTMS "Juko ST Turbo Mode Setter" is a DOS tool for reading and changing the CPU speed mode through VDL C1 chipset registers (it is based on JSTWSS code):

JSTTMS looks like this:

The tool is self-explanatory when "/?" or "/H" command line switch is used. If no switch is used, it only shows the current CPU speed mode by reading the chipset registers.

3) JSTWSR or "Juko ST Wait States Reader" is a DOS utility for reading the set wait states values from the VDL C1 chipset registers. Its functionality has been replaced by JSTWSS tool, but still included in the package.

JSTWSR looks like this:

Many thanks to @Babasha for testing JSTWSR on a real hardware!

Any feedback will be appreciated!