3.8 Video | 3 Diagnostic Programs |
Subtest 12 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 automa tically by BitBLT engine with minimum CPU intervention.
Satellite M40/M45 TECRA A4 Dynabook Vx/4 Maintenance
Manual 53
