Toshiba HX-33 or HX-34 owners

By zeilemaker54

Champion (312)

zeilemaker54's picture

07-05-2019, 19:48

Hello,

I am looking for Toshiba HX-33 or HX-34 owners for correctly dumping the firmware ROM. I am developing a tool to create such a dump, as the HX-33/HX-34 use a special mapper.
You can contact me at my e-mail adres (see my profile in msx.org)

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By Manuel

Ascended (18162)

Manuel's picture

07-05-2019, 21:50

Together with zeilemaker54, the openMSX team will also attempt to get these machines fully emulated! So, please step up and help us out!

By msxholder

Champion (382)

msxholder's picture

07-05-2019, 22:49

Hoezo special mapper ?
Custom made Toshiba chips perhaps like the Sony HB-5 and 7?

By zeilemaker54

Champion (312)

zeilemaker54's picture

08-05-2019, 20:04

msxholder wrote:

Hoezo special mapper ?
Custom made Toshiba chips perhaps like the Sony HB-5 and 7?

You mean sony hb-f500/hb-f700 ?
No, this mapper is at address 07FFFH, and also include the addressing of 2K SRAM. It would not supprise me if the logic is incorperated in the toshiba chipset TCX-2001/TCX-2002

By msxholder

Champion (382)

msxholder's picture

24-12-2020, 22:27

There are only 4 values at register 7FFFh 9C,9D,9E and 9F hex.

By Gradius2

Hero (625)

Gradius2's picture

16-01-2021, 23:32

Please, if you have this file, pvt me or send me an e-mail.

Toshiba HX-34:
ROM: hx-34_disk.rom
SHA1: c88ef953b21370cbaef5e82575d093d6f9047ec6

TIA!