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Implement index SYSCLIB function.

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This commit is contained in:
Jean-Philip Desjardins 2018-02-06 19:18:29 -05:00
parent 05d939aaf0
commit b11821322d
2 changed files with 18 additions and 0 deletions
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17
Source/iop/Iop_Sysclib.cpp
View File

@ -68,6 +68,9 @@ std::string CSysclib::GetFunctionName(unsigned int functionId) const
case 24:
return "strcspn";
break;
case 25:
return "index";
break;
case 27:
return "strlen";
break;
@ -201,6 +204,12 @@ void CSysclib::Invoke(CMIPS& context, unsigned int functionId)
context.m_State.nGPR[CMIPS::A1].nV0
);
break;
case 25:
context.m_State.nGPR[CMIPS::V0].nD0 = __index(
context.m_State.nGPR[CMIPS::A0].nV0,
context.m_State.nGPR[CMIPS::A1].nV0
);
break;
case 27:
context.m_State.nGPR[CMIPS::V0].nD0 = static_cast<int32>(__strlen(
reinterpret_cast<char*>(&m_ram[context.m_State.nGPR[CMIPS::A0].nV0])
@ -507,6 +516,14 @@ uint32 CSysclib::__strcspn(uint32 str1Ptr, uint32 str2Ptr)
return result;
}
uint32 CSysclib::__index(uint32 sPtr, uint32 c)
{
auto s = reinterpret_cast<const char*>(m_ram + sPtr);
auto result = strchr(s, c);
if(result == nullptr) return 0;
return reinterpret_cast<const uint8*>(result) - m_ram;
}
uint32 CSysclib::__strtol(uint32 stringPtr, uint32 endPtrPtr, uint32 radix)
{
auto string = reinterpret_cast<const char*>(GetPtr(stringPtr, 0));

1
Source/iop/Iop_Sysclib.h
View File

@ -54,6 +54,7 @@ namespace Iop
uint32 __strstr(uint32, uint32);
uint32 __strtok(uint32, uint32);
uint32 __strcspn(uint32, uint32);
uint32 __index(uint32, uint32);
uint32 __strtol(uint32, uint32, uint32);
uint32 __wmemcopy(uint32, uint32, uint32);
uint32 __vsprintf(CMIPS&, uint32, uint32, uint32);