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Rainbow III |
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Company Ingenieurbüro Helfrich, Germany | | Date 1994 | | Amiga A3000, A4000
| | Interface Zorro III
| | Autoconfig ID 2145 / 33
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RTG graphics card
- most cards have an Inmos G360 with 110 MHz pixel clock
- a few have G364-10S (100 MHz dot clock) or G365 CLT-RAMDAC (175 MHz dot clock)
- 128 bit pixelbus
- 4 MB, 20 ns, dualported VRAM in 32 ZIP sockets
- video memory is linearly mapped into the Zorro III address space
- hardware panning for processing oversized images
- interrupt during the vertical blank (for cursor- and double buffering manipulations)
- supports multiple screens and double buffering
screen modes
- 1600×1280×16 interlaced
- 640×480×24
notes
- 64×64 hardware cursor with 3 colours
- CyberGraphX 4.2 and EGS drivers
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