[Memotech] Help me to target ROMs patchs !

[XavSnap]

Hi,

I had to write a tool to target any patchs on Memotech ROMs.
Memotext, Ci/f, Si/f …



The main ZX81's monitor rom will be compared with the ZX81A (EO ROM).
I haven't any Memotech card, and i try to emulate them in Vb81.

Is it possible to target them?

CompRom.jpg (23.87 KiB) Viewed 1654 times

(Vb81's ROM patchs to bypass the display, Load command…)


(A wav file is enclosed in the zip file, to load it without other dedicated cards)

Rom_Compare.zip

(412.09 KiB) Downloaded 196 times

Plugin the card, load the file and take a picture !

All the best.

[XavSnap]

Hi,

You had to move the Memotext switch on, to retrieve the ROM patchs.
On the Memotech CIF, the patchs are installed while ZX81 warming up.

Have fun.