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| author | Gabe Black <gblack@eecs.umich.edu> | 2007-08-26 20:30:36 -0700 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2007-08-26 20:30:36 -0700 |
| commit | fcd04f953ce56f85da52d916f5770924fedd0297 (patch) | |
| tree | 14c6cbc305f9fcc3eedeb99c5d79a2ee6c598207 /src/arch/x86/insts | |
| parent | 24bfda0fdf0d1f80726d8590dcd6a84d70134a53 (diff) | |
| download | gem5-fcd04f953ce56f85da52d916f5770924fedd0297.tar.xz | |
X86: Remove x86 code that attempted to fix misaligned accesses.
--HG--
extra : convert_revision : 42f68010e6498aceb7ed25da278093e99150e4df
Diffstat (limited to 'src/arch/x86/insts')
| -rw-r--r-- | src/arch/x86/insts/microldstop.hh | 38 |
1 files changed, 12 insertions, 26 deletions
diff --git a/src/arch/x86/insts/microldstop.hh b/src/arch/x86/insts/microldstop.hh index fac1fa3aa..5b1210d69 100644 --- a/src/arch/x86/insts/microldstop.hh +++ b/src/arch/x86/insts/microldstop.hh @@ -106,29 +106,22 @@ namespace X86ISA Fault read(Context *xc, Addr EA, MemType & Mem, unsigned flags) const { Fault fault = NoFault; - int size = dataSize; - Addr alignedEA = EA & ~(dataSize - 1); - if (EA != alignedEA) - size *= 2; - switch(size) + switch(dataSize) { case 1: - fault = xc->read(alignedEA, (uint8_t&)(Mem.a), flags); + fault = xc->read(EA, (uint8_t&)Mem, flags); break; case 2: - fault = xc->read(alignedEA, (uint16_t&)(Mem.a), flags); + fault = xc->read(EA, (uint16_t&)Mem, flags); break; case 4: - fault = xc->read(alignedEA, (uint32_t&)(Mem.a), flags); + fault = xc->read(EA, (uint32_t&)Mem, flags); break; case 8: - fault = xc->read(alignedEA, (uint64_t&)(Mem.a), flags); - break; - case 16: - fault = xc->read(alignedEA, Mem, flags); + fault = xc->read(EA, (uint64_t&)Mem, flags); break; default: - panic("Bad operand size %d for read at %#x.\n", size, EA); + panic("Bad operand size %d for read at %#x.\n", dataSize, EA); } return fault; } @@ -137,29 +130,22 @@ namespace X86ISA Fault write(Context *xc, MemType & Mem, Addr EA, unsigned flags) const { Fault fault = NoFault; - int size = dataSize; - Addr alignedEA = EA & ~(dataSize - 1); - if (EA != alignedEA) - size *= 2; - switch(size) + switch(dataSize) { case 1: - fault = xc->write((uint8_t&)(Mem.a), alignedEA, flags, 0); + fault = xc->write((uint8_t&)Mem, EA, flags, 0); break; case 2: - fault = xc->write((uint16_t&)(Mem.a), alignedEA, flags, 0); + fault = xc->write((uint16_t&)Mem, EA, flags, 0); break; case 4: - fault = xc->write((uint32_t&)(Mem.a), alignedEA, flags, 0); + fault = xc->write((uint32_t&)Mem, EA, flags, 0); break; case 8: - fault = xc->write((uint64_t&)(Mem.a), alignedEA, flags, 0); - break; - case 16: - fault = xc->write(Mem, alignedEA, flags, 0); + fault = xc->write((uint64_t&)Mem, EA, flags, 0); break; default: - panic("Bad operand size %d for write at %#x.\n", size, EA); + panic("Bad operand size %d for write at %#x.\n", dataSize, EA); } return fault; } |