The "odd couple": STM32F030R8 + CPU V20

[Just4Fun]

Hi all, I'm currently playing with a new "retro project" (an other useless stuff... ) using a V20 CPU (uPD70108HCZ).
It is a special version of the Intel 8088 CPU (that one used on the IBM PC) that can also run 8080 code.

I'm using a STM32F030R8 MCU (on the white custom board ARMando) as "companion" I/O processor that emulates all the "legacy" I/O chips:




Here the first "Hello world" test (uPD70108HCZ @ 8MHz):



It is possible follow the development here.

[ag123]

maybe you can run dos on it, memory is pretty tight though
https://www.freedos.org/

[Just4Fun]

maybe you can run dos on it, memory is pretty tight though

Yes may be...
The final board will have 1MByte RAM (all the address space fitted...)

[arpruss]

Or cp/m on the 8080.