Acorn - Master 512 - Technical Information and Monitor Documentation
The Acorn BBC Master 512 was a BBC Master computer with an 80C186 Co-Processor card fitted and 512 kB memory. It also had the ability to run DOS Plus and the GEM graphical user interface.
From the introduction:
'The information contained in this application note is designed to allow a programmer using the maste 512 to access the standard MOS calls of the master 128 using the software interrupts provided. It details the calls, error trapping, etc which are necessary to write a program that is either to run under DOS+, or as a stand alone application in place of DOS+.'
This exhibit has a reference ID of CH41363. Please quote this reference ID in any communication with the Centre for Computing History.