(WIP) Video memory concurrency
- bank7 selector to address video or attribute RAM
- found read and write data paths leading to video RAMs (F11, F12).
- video RAMs CS generation.
by
giuliof
1 year 6 months
(WIP) Other steps in video generation
- Some notes regarding video attributes.
- Found some stuck-at inputs.
by
giuliof
1 year 6 months
(WIP) A long job in analog video output
! Read comments inside video_memory_management sheet for more
informations.
- Completed path between dot pattern output of character shift register
and beam output transistor.
- Found behavior of video attribute signals: blink, underline, stretch,
hide.
- Completed wiring of 28L22 ROM, which is involved in video attributes.
- TODO: video_memory_management must be cleaned up, since schematics has grown
outside sheet.
by
giuliof
1 year 6 months
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