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In SYNC Notes {SYNC 1 :5) we gave a test to check whether you had received a defective ROM. The following letter from Nigel Searle will clarify this matter further:
Dear Customer:
The recent mention in Sync magazine of a possible bug in our 8K BASIC ROM could be misleading.
The correct value of 2^32 is 4,294,967,296. This is rounded to 8 significant digits and displayed as 4,294,967,300. 2^32-1 is 4,294,967,295 which, when rounded to 8 significant digits, is also displayed as 4,294,967,300.
This is the appropriate result for a computer of finite (8 digit) capacity.
The bug referred to in Sync will give 1,288,490,200 when 1 is subtracted from 2^32 (4,294,967,300). Only if your ROM has this problem should you return it to us for replacement.