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8514/A compatible changes of the day (March 6th, 2025)#5289

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OBattler merged 1 commit into
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tc1995
Mar 6, 2025
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8514/A compatible changes of the day (March 6th, 2025)#5289
OBattler merged 1 commit into
masterfrom
tc1995

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@TC1995

@TC1995 TC1995 commented Mar 6, 2025

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Summary

  1. Follow the Mach32 manual more closely regarding vblank support.
  2. The subsystem status now takes account of the other bits more accurately.
  3. The Mach32 PCI, when used with the ATI 68860 ramdac, has its own bpp's when in accelerator mode, separate from the VGA compatible side, so fix this accordingly.
  4. Reset the vram when a mapping change occurs, should clear the messups in the ATI Mach8/32 accel video mode tests.

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References

Mach32 manual for the subsystem stuff

1. Follow the Mach32 manual more closely regarding vblank support.
2. The subsystem status now takes account of the other bits more accurately.
3. The Mach32 PCI, when used with the ATI 68860 ramdac, has its own bpp's when in accelerator mode, separate from the VGA compatible side, so fix this accordingly.
4. Reset the vram when a mapping change occurs, should clear the messups in the ATI Mach8/32 accel video mode tests.
@OBattler OBattler merged commit 66dabc4 into master Mar 6, 2025
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