Toshiba A105 S4064 Maintenance Manual - Page 134
Subtest 11, BitBlt Engine Test, minimum CPU intervention.
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3 Diagnostic Programs 3.8 Video 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. 58 Satellite A100/A105 / TECRA A7 Maintenance Manual
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3
Diagnostic Programs
3.8 Video
58
Satellite A100/A105 / TECRA A7 Maintenance Manual
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.