ATPL Sidewise Sideways ROM RAM expansion board

The ATPL Sidewise Sideways ROM board provides ROM and EPROM expansion capacity internally to the BBC Micro, allowing the machine to access a full complement of 15 installed ROMs. ROM bank 15 is split into two banks of 8KB of RAM which allows for a ROM image to be loaded into the ROM bank or for the extra Sideways RAM to be used under certain circumstances by expanded games that took advantage of the memory if fitted.

The ATPL Sidewise Sideways ROM board

Fitting the board

Fitting the board can be a solderless affair however, if yo