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Bug 5443

Summary: [PATCH] Implement SDL_MostSignificantBitIndex32 with MSVC intrinsics
Product: SDL Reporter: Cameron Gutman <cameron.gutman>
Component: *don't know*Assignee: Sam Lantinga <slouken>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2    
Version: HG 2.0   
Hardware: All   
OS: Windows 10   
Attachments: Patch

Description Cameron Gutman 2021-01-03 20:06:37 UTC 
Created attachment 4636 [details]
Patch

MSVC provides a _BitScanReverse() intrinsic that we can use to implement SDL_MostSignificantBitIndex32().
Comment 1 Sam Lantinga 2021-01-03 21:57:31 UTC 
Patch added, thanks!
https://hg.libsdl.org/SDL/rev/2dd9827ac682