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Don't write on pixtrans reads (8514/A compatibles)#6786

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OBattler merged 1 commit into
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TC1995
Feb 8, 2026
Merged

Don't write on pixtrans reads (8514/A compatibles)#6786
OBattler merged 1 commit into
masterfrom
TC1995

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@TC1995

@TC1995 TC1995 commented Feb 7, 2026

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Summary

  1. See above.
  2. Reuse the 4k ROM with proper loading mechanism so that extended ATI modes can be used with the ATI 8514 Ultra 4k ROM (add-on).
  3. Disable excess logging.
  4. Apparently 8514/A bresenham line must always draw the last pixel unlike the vector lines, fixes missing pixels in some programs e.g.: calculator on Windows 3.x using 8514/A drivers.

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1. See above.
2. Reuse the 4k ROM with proper loading mechanism so that extended ATI modes can be used with the ATI 8514 Ultra 4k ROM (add-on).
3. Disable excess logging.
4. Apparently 8514/A bresenham line must always draw the last pixel unlike the vector lines, fixes missing pixels in some programs e.g.: calculator on Windows 3.x using 8514/A drivers.
@OBattler OBattler merged commit 8d95f7a into master Feb 8, 2026
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2 participants