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bus/pci/promotion.cpp: notes

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Angelo Salese 2024-02-21 17:53:27 +01:00 committed by GitHub
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1 changed files with 8 additions and 2 deletions
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10
src/devices/bus/pci/promotion.cpp
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@ -4,12 +4,18 @@
Alliance Semiconductor ProMotion family
- aT3D is the 2d base of 3dfx Voodoo Rush on Hercules Stingray 128/3D cards at least
(thru THP i/f, reportedly slow)
- On its own aT3D is infamously known to be a terrible 3D card
cfr. https://www.youtube.com/watch?v=vCz-rSlSREA
TODO:
- Requires own family of VGA based devices;
- Catch is that said device mirrors the PCI space in memory mapped regs, along with the
(more or less) typical SVGA regs of the mid-90s;
- Black screens when mounted;
- Bare documentation, covering pinout and register names only;
- Bare documentation, covering pinout and register names only. aT3D datasheet available for
crosschecking;
**************************************************************************************************/
@ -31,7 +37,7 @@ DEFINE_DEVICE_TYPE(PROMOTION3210, promotion3210_device, "promotion3210", "
//DEFINE_DEVICE_TYPE(PROMOTION6424, promotion6424_device, "promotion6424", "Alliance Semiconductor ProMotion 6424")
// Alias of above?
//DEFINE_DEVICE_TYPE(PROMOTIONAT24, promotionat24_device, "promotionat24", "Alliance Semiconductor ProMotion aT24")
//DEFINE_DEVICE_TYPE(PROMOTIONAT3D, promotionat3d_device, "promotionat3d", "Alliance Semiconductor ProMotion aT3d")
//DEFINE_DEVICE_TYPE(PROMOTIONAT3D, promotionat3d_device, "promotionat3d", "Alliance Semiconductor ProMotion aT3D")
//DEFINE_DEVICE_TYPE(PROMOTIONAT25, promotionat25_device, "promotionat25", "Alliance Semiconductor ProMotion aT25")