Toshiba SATEGO L300D, PSLCAX/PSLCBX, EQUIUM L300D manual Subtest11 BitBltEngineTest

3.10￿Peripheral￿ 3￿￿Diagnostic￿Programs￿

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NOTE￿1:AMD￿platform￿can’t￿support￿this￿item￿￿

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Subtest￿11￿￿ BitBlt￿Engine￿Test￿￿

This￿test￿item￿is￿to￿check￿whether￿the￿BitBlt￿engine￿works￿normally.￿

BitBlt￿is￿the￿abbreviation￿of￿‘Bit￿Block￿Translate’,￿that￿means￿the￿copy￿of￿data￿ block￿for￿3￿types,￿from￿video￿memory￿to￿video￿memory,￿from￿video￿memory￿to￿ system￿memory,￿and￿from￿system￿memory￿to￿video￿memory.￿￿

What￿should￿be￿done￿is￿to￿write￿the￿data￿of￿the￿type￿of￿BitBLT￿operation￿and￿the￿ location￿of￿BitBLT￿source￿area￿and￿destination￿area￿into￿the￿BitBLT￿registers,￿and￿ all￿those￿operations￿will￿be￿completed￿automatically￿by￿BitBLT￿engine￿with￿ minimum￿CPU￿intervention.￿

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