VOGONS


First post, by aVd

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Since I have the famous XT-clone Juko Super Turbo motherboard, I decided to write some new small DOS tools related ot 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 ware used. No "ai" involved.

1) JSTWSR or "Juko ST Wait States Reader" version 1.0 is tool for reading the set wait states values from the VDL C1 chipset registers:

The attachment JSTWSR10.zip is no longer available

JSTWSR looks like this:

The attachment JSTWSR10.jpg is no longer available

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

2) JSTWSS "Juko ST Wait States Setter" version 1.0 is tool for reading and changing the wait states values in VDL C1 chipset registers (it is partially based on JSTWSR code):

The attachment JSTWSS10.zip is no longer available

JSTWSS looks like this:

The attachment JSTWSS10.jpg is no longer available

The tool is self-explanatory when "/?" or "/H" command line switch is used. If no switches are used, it only shows current wait states read from VDL C1 registers.

I hope, that JSTWSS will work flawlessly on a real hardware, since my Juko ST motherboard is still missing 8-bit ISA FDD and HDD controllers, so I can't test the tool by myself and I wrote it blindly by using some dummy-tests.

Any feedback will be appreciated!

Last edited by aVd on 2026-08-13, 21:19. Edited 1 time in total.

I like the quieter planets, this one became pretty noisy 😀

Reply 1 of 1, by aVd

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JSTWSS "Juko ST Wait States Setter" version 1.0 tool for reading and changing the wait states values in VDL C1 chipset (and clones like Tamarack TD3300A, NEC 567 and Hitachi HG62E22R36FS) registers released.

Download attachment is in the first post.

I like the quieter planets, this one became pretty noisy 😀