NOTE: It seems the RAM can only be accessed after the red button has been pressed.
The ROM is made visible by pressing the red button which causes an [[NMI ]] and execution starts at 0066. The ROM is visible at 0000-1fff with a mirror at 2000-ffff. The ROM overrides the internal CPC OS ROM and also disables the RAM where it is mapped (i.e. RAM in the range 0000-3fff is disabled). Therefore writing to RAM under the ROM is not possible.
The ROM state is also toggled by reading an opcode from an address >0x03000 and less than <0x03fff. The ROM itself uses 3FFB which contains a RET
== Weblinks ==
* [https://framagit.org/offset/mirage-imager-acepansion Mirage Imager ACEpansion] on Framagit
* [http://www.cpc-power.com/index.php?page=detail&num=5317 ''Mirage Imager'' from CPC-Power]
* [https://cpcrulez.fr/hardware-interface_debug-mirage_imager.htm ''Mirage Imager'' from CPCrulez]
* [http://www.worldofspectrum.org/showmag.cgi?mag=YourComputer/Issue8609/Pages/YourComputer860900015.jpg Review (english)] - Your Computer, 09/1986
* [http://www.stcarchiv.de/hc1986/11_mirageimager.php Review (german)] - Happy Computer, 11/1986
* [http://hardware.speccy.org/temp/Amstrad-Mirage.html ''Mirage Imager'' from hardware.speccy.org]
== References ==