Changes between Version 12 and Version 13 of geniuspc

geniuspc

-              v12
+              v13
 The Genius PC is a home computer from VTech. Released in the late 90s, it is one of the last microcomputers.
+Not very much about it is known, the computer doesn't come with any useful hardware documentation and the integration of everything in a big ASIC makes it hard to know how it works.
+Moreover, this computer have different names in each country, making it even harder to track down the information.
+ * France : VTech Genius PC
+ * Germany : VTech Genius IQ 128
+ * UK : VTech IT Unlimited
+ * Also mentioned on the french packaging : Switzerland, the Netherlands, USA, Canada.
 = Hardware : =
 …
 With the help of an AT90USBkey a dump of the ROM was made. You can download it in the attachment section below.
 The rom is 2MB big, but there is a big chunk of it which is actually text, graphics and audio sample, and disassembling the remaining 68000 code should not be too hard.
+For now I only have the French ROM, but people are going to send me the German and UK ROM chips so I can dump them as well (thanks guys !). If you have other info about the hardware, let us know !
+= MESS core =
+I'm in the process of writing a MESS driver for this machine. So far it has the CPU, ROM and RAM (that was the easy part). Now I'm trying to figure out the memory mapping and the use of the hardware registers, as well as studying the ROM code and trying to understand how it works.