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[saco] Implement/match FUNC_100B44E0, FUNC_100B6470, VectorScale, FUNC_100B51E0 and FUNC_100B5180; the quaternion norm needs its tail sum parenthesised or MSVC folds the first square to the top of the x87 stack

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This commit is contained in:
ricardoofnl
2026-09-05 10:31:13 +07:00
parent 78cf6daf38
commit ea57e6af81
2 changed files with 64 additions and 0 deletions
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saco/game/util.cpp
+59
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@@ -1655,3 +1655,62 @@ void __stdcall FUNC_100B4730(int iModel, WORD wValue)
_asm mov [edx+8], bx
}
}
//-----------------------------------------------------------
BOOL __stdcall FUNC_100B44E0(DWORD *pModelInfo)
{
if(pModelInfo && (*pModelInfo == 0x85BBF0 || *pModelInfo == 0x85BC30 ||
*pModelInfo == 0x85BC70 || *pModelInfo == 0x85BCB0 || *pModelInfo == 0x85BCF0))
{
return TRUE;
}
return FALSE;
}
//-----------------------------------------------------------
WORD FUNC_100B6470(int a1, int a2, int a3, int a4, int a5)
{
if(!a1) return 0;
WORD wRet = 0;
_asm lea edx, a1
_asm xor eax, eax
_asm mov ax, [edx+0x12]
_asm mov wRet, ax
return wRet;
}
//-----------------------------------------------------------
void VectorScale(VECTOR *vecOut, VECTOR *vecIn, float fScale)
{
vecOut->X = fScale * vecIn->X;
vecOut->Y = fScale * vecIn->Y;
vecOut->Z = fScale * vecIn->Z;
}
//-----------------------------------------------------------
void FUNC_100B51E0(int a1, int a2)
{
DWORD dwFunc = (iGtaVersion != GTASA_VERSION_USA10) ? 0x7EB600 : 0x7EB5C0;
_asm push a2
_asm push a1
_asm mov eax, dwFunc
_asm call eax
_asm pop edx
_asm pop edx
}
//-----------------------------------------------------------
float FUNC_100B5180(float *pQuat)
{
return pQuat[0] * pQuat[0] + (pQuat[1] * pQuat[1] + pQuat[2] * pQuat[2] +
pQuat[3] * pQuat[3]);
}
saco/game/util.h
+5
View File
@@ -140,6 +140,11 @@ void __stdcall FUNC_100B4630(int iModel, int a2); // .text:100B4630
DWORD __stdcall FUNC_100B46D0(int iModel); // .text:100B46D0
WORD __stdcall FUNC_100B4700(int iModel); // .text:100B4700
void __stdcall FUNC_100B4730(int iModel, WORD wValue); // .text:100B4730
BOOL __stdcall FUNC_100B44E0(DWORD *pModelInfo); // .text:100B44E0
WORD FUNC_100B6470(int a1, int a2, int a3, int a4, int a5); // .text:100B6470
void VectorScale(VECTOR *vecOut, VECTOR *vecIn, float fScale); // .text:100B51B0
void FUNC_100B51E0(int a1, int a2); // .text:100B51E0
float FUNC_100B5180(float *pQuat); // .text:100B5180
void FUNC_100B5210(int a1, void *a2); // .text:100B5210, __cdecl: the caller's
// stack cleanup is folded into the next call's argument setup