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An extended BASIC with a full-screen text editor for programming and full support for the new hardware was the least the UK market deserved. Which meant modifying the original ROM. Which first meant being able to rebuild that ROM from the source code. Which was a huge heap of mostly uncommented Z80 mnemonics living, somewhat bizarrely, on a VAX 11/750. I was given a seat, a VT-220 terminal, manuals for VMS and CP/M, and left to get on with it.
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