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Cirrus, ATI Mach8/32 and XGA fixes.#3861

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OBattler merged 1 commit into
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tc1995
Dec 6, 2023
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Cirrus, ATI Mach8/32 and XGA fixes.#3861
OBattler merged 1 commit into
masterfrom
tc1995

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@TC1995

@TC1995 TC1995 commented Dec 6, 2023

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Summary

  1. Update svga->fast to account for packed chain mode toggles, fixes issues on Descent II for DOS using the Cirrus cards.
  2. Re-organized ATI Mach8/32 LFB access as well as 8514/A/ATI mode toggles, should end the video mode issues once and for all.
  3. Fixed a small but major pattern issue with IBM OS/2 1.30.1's XGA driver (not .2, which is fine as is).

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1. Update svga->fast to account for packed chain mode toggles, fixes issues on Descent II for DOS using the Cirrus cards.
2. Re-organized ATI Mach8/32 LFB access as well as 8514/A/ATI mode toggles, should end the video mode issues once and for all.
3. Fixed a small but major pattern issue with IBM OS/2 1.30.1's XGA driver (not .2, which is fine as is).
@OBattler
OBattler merged commit a5901cb into master Dec 6, 2023
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