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Diffstat (limited to 'src/arch/sparc/floatregfile.cc')
-rw-r--r--src/arch/sparc/floatregfile.cc139
1 files changed, 11 insertions, 128 deletions
diff --git a/src/arch/sparc/floatregfile.cc b/src/arch/sparc/floatregfile.cc
index 2d1af2218..6fdc36489 100644
--- a/src/arch/sparc/floatregfile.cc
+++ b/src/arch/sparc/floatregfile.cc
@@ -43,155 +43,38 @@ class Checkpoint;
void FloatRegFile::clear()
{
- memset(regSpace, 0, sizeof(regSpace));
+ memset(regs.q, 0, sizeof(regs.q));
}
-FloatReg FloatRegFile::readReg(int floatReg, int width)
+FloatReg FloatRegFile::readReg(int floatReg)
{
- //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:
- uint32_t result32;
- float32_t fresult32;
- memcpy(&result32, regSpace + 4 * floatReg, sizeof(result32));
- result32 = htog(result32);
- memcpy(&fresult32, &result32, sizeof(result32));
- result = fresult32;
- DPRINTF(FloatRegs, "Read FP32 register %d = [%f]0x%x\n",
- floatReg, result, result32);
- break;
- case DoubleWidth:
- uint64_t result64;
- float64_t fresult64;
- memcpy(&result64, regSpace + 4 * floatReg, sizeof(result64));
- result64 = htog(result64);
- memcpy(&fresult64, &result64, sizeof(result64));
- result = fresult64;
- DPRINTF(FloatRegs, "Read FP64 register %d = [%f]0x%x\n",
- floatReg, result, result64);
- break;
- case QuadWidth:
- panic("Quad width FP not implemented.");
- break;
- default:
- panic("Attempted to read a %d bit floating point register!", width);
- }
- return result;
+ return regs.s[floatReg];
}
-FloatRegBits FloatRegFile::readRegBits(int floatReg, int width)
+FloatRegBits FloatRegFile::readRegBits(int floatReg)
{
- //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));
- result = htog(result32);
- DPRINTF(FloatRegs, "Read FP32 bits register %d = 0x%x\n",
- floatReg, result);
- break;
- case DoubleWidth:
- uint64_t result64;
- memcpy(&result64, regSpace + 4 * floatReg, sizeof(result64));
- result = htog(result64);
- DPRINTF(FloatRegs, "Read FP64 bits register %d = 0x%x\n",
- floatReg, result);
- break;
- case QuadWidth:
- panic("Quad width FP not implemented.");
- break;
- default:
- panic("Attempted to read a %d bit floating point register!", width);
- }
- return result;
+ return regs.q[floatReg];
}
-Fault FloatRegFile::setReg(int floatReg, const FloatReg &val, int width)
+Fault FloatRegFile::setReg(int floatReg, const FloatReg &val)
{
- //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.
-
- uint32_t result32;
- uint64_t result64;
- float32_t fresult32;
- float64_t fresult64;
- switch(width)
- {
- case SingleWidth:
- fresult32 = val;
- memcpy(&result32, &fresult32, sizeof(result32));
- result32 = gtoh(result32);
- memcpy(regSpace + 4 * floatReg, &result32, sizeof(result32));
- DPRINTF(FloatRegs, "Write FP64 register %d = 0x%x\n",
- floatReg, result32);
- break;
- case DoubleWidth:
- fresult64 = val;
- memcpy(&result64, &fresult64, sizeof(result64));
- result64 = gtoh(result64);
- memcpy(regSpace + 4 * floatReg, &result64, sizeof(result64));
- DPRINTF(FloatRegs, "Write FP64 register %d = 0x%x\n",
- floatReg, result64);
- break;
- case QuadWidth:
- panic("Quad width FP not implemented.");
- break;
- default:
- panic("Attempted to read a %d bit floating point register!", width);
- }
+ regs.s[floatReg] = val;
return NoFault;
}
-Fault FloatRegFile::setRegBits(int floatReg, const FloatRegBits &val, int width)
+Fault FloatRegFile::setRegBits(int floatReg, const FloatRegBits &val)
{
- //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.
- uint32_t result32;
- uint64_t result64;
- switch(width)
- {
- case SingleWidth:
- result32 = gtoh((uint32_t)val);
- memcpy(regSpace + 4 * floatReg, &result32, sizeof(result32));
- DPRINTF(FloatRegs, "Write FP64 bits register %d = 0x%x\n",
- floatReg, result32);
- break;
- case DoubleWidth:
- result64 = gtoh((uint64_t)val);
- memcpy(regSpace + 4 * floatReg, &result64, sizeof(result64));
- DPRINTF(FloatRegs, "Write FP64 bits register %d = 0x%x\n",
- floatReg, result64);
- break;
- case QuadWidth:
- panic("Quad width FP not implemented.");
- break;
- default:
- panic("Attempted to read a %d bit floating point register!", width);
- }
+ regs.q[floatReg] = val;
return NoFault;
}
void FloatRegFile::serialize(std::ostream &os)
{
- uint8_t *float_reg = (uint8_t*)regSpace;
- SERIALIZE_ARRAY(float_reg,
- SingleWidth / 8 * NumFloatRegs);
+ SERIALIZE_ARRAY(regs.q, NumFloatRegs);
}
void FloatRegFile::unserialize(Checkpoint *cp, const std::string &section)
{
- uint8_t *float_reg = (uint8_t*)regSpace;
- UNSERIALIZE_ARRAY(float_reg,
- SingleWidth / 8 * NumFloatRegs);
+ UNSERIALIZE_ARRAY(regs.q, NumFloatRegs);
}