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A comment on The Amstrad CPC 472, an unusual case. Parent comment

Re:The Amstrad CPC 472, an unusual case by Doctor_Fegg on Tuesday September 15, 2020 @05:58PM (#24487217)
It wasn't fast. But if you were really concerned about performance on the CPC you wouldn't be using the firmware anyway.

Standard practice to do a delay on the CPC was a loop around CALL &BD19 - that paused until frame flyback, i.e. 1/50th of a second.

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