ROM Tuning equipments.
Access Monitor and ROM Tuner.
Access Monitor is displays access of ROM address.
ROM address 0000-FFFF is latched and an access situation is displayed.
ROM Tuner is 8bit and 16bit real-time ROM emulator.
It rewrites in real time by a hand carry controller by byte and the word of 27C64 to 27C512.
On the market in 1998. Sale was ended in 2002.