Sinclair ZX80 / ZX81 / Z88 Forums

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?
(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)
Plugin the card, load the file and take a picture !

All the best.

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.