I target the code to reinit the Memotech HRG:
I had to create a buffer (ram 0 to &400) in Vb81...;------------------------------------
;-Basic sub-routine entry. -
;+----------------------------------+
; Lb4082 ; <- USR Basic Enty.
;+----------------------------------+
ORG $4082 ; [@16514/@h4082]
Lb4082: ; <- USR Basic Enty.
LD HL,$0000
LD DE,$0000
LD BC,$0400
LDIR
RET ; ==========================
But, in EO... this program can't work properly: Text&P file:http://zx81.ordi5.free.fr/programmes/Me ... ncais.zip (Type RUN, and NEW)
... the ROM steel in read-only statement.
A "write" process (POKE/LD/LDIR...) seem to be the trigger to read the mirrored ROM.