S3 bank update (October 29th, 2024) #4929
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1. Simplified 4bpp rendering mode. 2. Implement CRTC31 bit 0 functionality which enables/disables the vendor banks. Fixes Diamond Stealth 64 964 VRAM (VLB/PCI) detection on NT 3.1 (and possibly other cards) while keeping NT 3.1 347.1's full screen Command Prompt test normal without garbage using the 911/924 chips.
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