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A comment on Reversing Sinclair's 1974 calculator hack (2013). Parent comment

Re:Reversing Sinclair's 1974 calculator hack (2013) by kens on Friday September 17, 2021 @03:23AM (#28562290)
The multiplies are done by repeated BCD addition, one digit at a time, along with BCD shifting, equivalent to multiplication by 10.
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