sanchayanmaity/gem5
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Fiddled with the floating point accessors.

Browse source 
--HG--
extra : convert_revision : 78cbd0c28d3fa1109eb2eacaf2a8009f13158a9b
This commit is contained in:
Gabe Black 2006-08-29 16:02:54 -04:00
parent 7ac1d10eb5
commit 292d3ae14a
1 changed files with 16 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

23
src/arch/sparc/floatregfile.cc
View file

@ -63,23 +63,28 @@ FloatReg FloatRegFile::readReg(int floatReg, int width)
//In each of these cases, we have to copy the value into a temporary
//variable. This is because we may otherwise try to access an
//unaligned portion of memory.
FloatReg result;
switch(width)
{
case SingleWidth:
float32_t result32;
memcpy(&result32, regSpace + 4 * floatReg, sizeof(result32));
return htog(result32);
result = htog(result32);
break;
case DoubleWidth:
float64_t result64;
memcpy(&result64, regSpace + 4 * floatReg, sizeof(result64));
return htog(result64);
result = htog(result64);
break;
case QuadWidth:
float128_t result128;
memcpy(&result128, regSpace + 4 * floatReg, sizeof(result128));
return htog(result128);
result = htog(result128);
break;
default:
panic("Attempted to read a %d bit floating point register!", width);
}
return result;
}
FloatRegBits FloatRegFile::readRegBits(int floatReg, int width)
@ -87,23 +92,28 @@ FloatRegBits FloatRegFile::readRegBits(int floatReg, int width)
//In each of these cases, we have to copy the value into a temporary
//variable. This is because we may otherwise try to access an
//unaligned portion of memory.
FloatRegBits result;
switch(width)
{
case SingleWidth:
uint32_t result32;
memcpy(&result32, regSpace + 4 * floatReg, sizeof(result32));
return htog(result32);
result = htog(result32);
break;
case DoubleWidth:
uint64_t result64;
memcpy(&result64, regSpace + 4 * floatReg, sizeof(result64));
return htog(result64);
result = htog(result64);
break;
case QuadWidth:
uint64_t result128;
memcpy(&result128, regSpace + 4 * floatReg, sizeof(result128));
return htog(result128);
result = htog(result128);
break;
default:
panic("Attempted to read a %d bit floating point register!", width);
}
return result;
}
Fault FloatRegFile::setReg(int floatReg, const FloatReg &val, int width)
@ -114,7 +124,6 @@ Fault FloatRegFile::setReg(int floatReg, const FloatReg &val, int width)
uint32_t result32;
uint64_t result64;
DPRINTF(Sparc, "Setting floating point register %d\n", floatReg);
switch(width)
{
case SingleWidth: