diff options
Diffstat (limited to 'src/cuda-sim/instructions.cc')
| -rw-r--r-- | src/cuda-sim/instructions.cc | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/src/cuda-sim/instructions.cc b/src/cuda-sim/instructions.cc index fe36902..109cfa7 100644 --- a/src/cuda-sim/instructions.cc +++ b/src/cuda-sim/instructions.cc @@ -1459,7 +1459,34 @@ void breakaddr_impl( const ptx_instruction *pI, ptx_thread_info *thread ) assert(pI->has_pred() == false); // pdom analysis cannot handle if this instruction is predicated } -void brev_impl( const ptx_instruction *pI, ptx_thread_info *thread ) { inst_not_implemented(pI); } +void brev_impl( const ptx_instruction *pI, ptx_thread_info *thread ) +{ + ptx_reg_t src1_data, data; + const operand_info &dst = pI->dst(); + const operand_info &src1 = pI->src1(); + unsigned i_type = pI->get_type(); + src1_data = thread->get_operand_value(src1, dst, i_type, thread, 1); + + unsigned msb; + switch(i_type){ + case B32_TYPE: + msb = 31; + for (unsigned i=0; i<=msb; i++) { + if((src1_data.u32 & (1 << i))) + data.u32 |= 1 << (msb - i); + } + break; + case B64_TYPE: + msb = 63; + for (unsigned i=0; i<=msb; i++) { + if((src1_data.u64 & (1 << i))) + data.u64 |= 1 << (msb - i); + } + break; + default: assert(0); + } + thread->set_operand_value(dst,data, i_type, thread, pI); +} void brkpt_impl( const ptx_instruction *pI, ptx_thread_info *thread ) { inst_not_implemented(pI); } void call_impl( const ptx_instruction *pI, ptx_thread_info *thread ) |