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Implemented strstr in IOP SYSCLIB.

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This commit is contained in:
Jean-Philip Desjardins 2015-06-03 23:58:08 -04:00
parent 394c6abf8e
commit 828a70e89a
2 changed files with 20 additions and 0 deletions
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19
Source/iop/Iop_Sysclib.cpp
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@ -74,6 +74,9 @@ std::string CSysclib::GetFunctionName(unsigned int functionId) const
case 32:
return "strrchr";
break;
case 34:
return "strstr";
break;
case 36:
return "strtol";
break;
@ -196,6 +199,12 @@ void CSysclib::Invoke(CMIPS& context, unsigned int functionId)
context.m_State.nGPR[CMIPS::A1].nV0
);
break;
case 34:
context.m_State.nGPR[CMIPS::V0].nD0 = __strstr(
context.m_State.nGPR[CMIPS::A0].nV0,
context.m_State.nGPR[CMIPS::A1].nV0
);
break;
case 36:
assert(context.m_State.nGPR[CMIPS::A1].nV0 == 0);
context.m_State.nGPR[CMIPS::V0].nD0 = static_cast<int32>(__strtol(
@ -326,6 +335,16 @@ uint32 CSysclib::__strrchr(uint32 strPtr, uint32 character)
return strPtr + ptrDiff;
}
uint32 CSysclib::__strstr(uint32 str1Ptr, uint32 str2Ptr)
{
auto str1 = reinterpret_cast<const char*>(m_ram + str1Ptr);
auto str2 = reinterpret_cast<const char*>(m_ram + str2Ptr);
auto result = strstr(str1, str2);
if(result == nullptr) return 0;
size_t ptrDiff = result - str1;
return str1Ptr + ptrDiff;
}
uint32 CSysclib::__strcspn(uint32 str1Ptr, uint32 str2Ptr)
{
auto str1 = reinterpret_cast<const char*>(m_ram + str1Ptr);

1
Source/iop/Iop_Sysclib.h
View File

@ -30,6 +30,7 @@ namespace Iop
void __strncpy(char*, const char*, unsigned int);
uint32 __strchr(uint32, uint32);
uint32 __strrchr(uint32, uint32);
uint32 __strstr(uint32, uint32);
uint32 __strcspn(uint32, uint32);
uint32 __strtol(const char*, unsigned int);
uint8* m_ram;