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Add support for printing floating point numbers in XMM/YMM

This commit is contained in:
torusrxxx 2021-12-25 17:36:29 +08:00
parent 025fcf5125
commit d7d9e95272
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GPG Key ID: A795C73A0F1CFADD
1 changed files with 92 additions and 45 deletions
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137
src/dbg/stringformat.cpp
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@ -21,12 +21,103 @@ enum class StringValueType
FloatingPointDouble
};
template<class T> String printFloatValue(FormatValueType value)
{
assert(std::is_same<T, double>() || std::is_same<T, float>());
String result;
char buf[16];
memset(buf, 0, sizeof(buf));
strcpy_s(buf, value);
_strlwr_s(buf);
size_t offset = 0;
bool bad = false;
if(buf[1] == 'm' && buf[2] == 'm' && (buf[0] == 'x' || buf[0] == 'y'))
{
int index = 0;
int bufptr = 0;
if(buf[3] >= '0' && buf[3] <= '9' && buf[4] >= '0' && buf[4] <= '9')
{
char temp[3] = { buf[3], buf[4], '\0' };
index = atoi(temp);
if(index >= ArchValue(8, 16))
bad = true;
bufptr = 5;
}
else if(buf[3] >= '0' && buf[3] <= '9')
{
char temp[2] = { buf[3], '\0' };
index = atoi(temp);
if(index >= ArchValue(8, 16))
bad = true;
bufptr = 4;
}
else
bad = true;
if(!bad)
{
if(buf[bufptr] == '\0') // [xy]mm\d{1,2}
offset = offsetof(REGDUMP, regcontext.XmmRegisters[index]);
else if(std::is_same<T, double>() && buf[0] == 'x' && buf[bufptr] == 'h' && buf[bufptr + 1] == '\0') // xmm\d{1,2}h
offset = offsetof(REGDUMP, regcontext.XmmRegisters[index].High);
else if(buf[bufptr] == '[')
{
if(buf[bufptr + 1] >= '0' && buf[bufptr + 1] <= '9' && buf[bufptr + 2] == ']' && buf[bufptr + 3] == '\0') // [xy]mm\d{1,2}\[\d\]
{
int item = buf[bufptr + 1] - '0';
if(buf[0] == 'x' && item >= 0 && item < 16 / sizeof(T))
offset = offsetof(REGDUMP, regcontext.XmmRegisters[index]) + item * sizeof(T);
else if(buf[0] == 'y' && item >= 0 && item < 32 / sizeof(T))
offset = offsetof(REGDUMP, regcontext.YmmRegisters[index]) + item * sizeof(T);
else
bad = true;
}
else
bad = true;
}
else
bad = true;
}
}
else
bad = true;
REGDUMP registers;
if(!bad && DbgGetRegDumpEx(&registers, sizeof(registers)))
{
T* ptr = (T*)((char*)&registers + offset);
std::stringstream wFloatingStr;
wFloatingStr << std::setprecision(std::numeric_limits<T>::digits10) << *ptr;
result = wFloatingStr.str();
}
else
{
T data;
duint valuint = 0;
if(valfromstring(value, &valuint) && DbgMemRead(valuint, &data, sizeof(data)))
{
std::stringstream wFloatingStr;
wFloatingStr << std::setprecision(std::numeric_limits<float>::digits10) << data;
result = wFloatingStr.str();
}
else
result = "???";
}
return result;
}
static String printValue(FormatValueType value, StringValueType type)
{
duint valuint = 0;
char string[MAX_STRING_SIZE] = "";
String result = "???";
if(valfromstring(value, &valuint))
if(type == StringValueType::FloatingPointDouble)
{
result = printFloatValue<double>(value);
}
else if(type == StringValueType::FloatingPointSingle)
{
result = printFloatValue<float>(value);
}
else if(valfromstring(value, &valuint))
{
switch(type)
{
@ -87,50 +178,6 @@ static String printValue(FormatValueType value, StringValueType type)
result = info.instruction;
}
break;
case StringValueType::FloatingPointSingle:
{
// 0~7 prints ST(0)-ST(7)
if(valuint < 8)
{
// TO DO
result = "???";
}
else
{
float data;
if(DbgMemRead(valuint, &data, sizeof(data)))
{
std::stringstream wFloatingStr;
wFloatingStr << std::setprecision(std::numeric_limits<float>::digits10) << data;
result = wFloatingStr.str();
}
else
result = "???";
}
}
break;
case StringValueType::FloatingPointDouble :
{
// 0~7 prints ST(0)-ST(7)
if(valuint < 8)
{
// TO DO
result = "???";
}
else
{
double data;
if(DbgMemRead(valuint, &data, sizeof(data)))
{
std::stringstream wFloatingStr;
wFloatingStr << std::setprecision(std::numeric_limits<double>::digits10) << data;
result = wFloatingStr.str();
}
else
result = "???";
}
}
break;
default:
break;
}