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Newsgroups: comp.os.msdos.djgpp
Date: Sat, 6 Aug 2022 08:52:20 -0700 (PDT)
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Subject: Re: BUGREPORT: ___dpmi_get_raw_mode_switch_addr() modifies SI
 register and doesn't save it
From: "Stefan Ring (stefanrin AT gmail DOT com) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
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> src\libc\dpmi\api\d0306.S, line 2-line 4. 
> 
> code before fix: 
> #define USE_EBX 
> #define USE_EDI 
> #include "dpmidefs.h" 
> 
> possible fix: 
> #define USE_EBX 
> #define USE_EDI 
> #define USE_ESI 
> #include "dpmidefs.h" 

Yes, looks very reasonable, given that the DPMI call explicitly changes (e)si.