diff options
Diffstat (limited to 'src/cuda-sim/cuda-sim.cc')
| -rw-r--r-- | src/cuda-sim/cuda-sim.cc | 44 |
1 files changed, 28 insertions, 16 deletions
diff --git a/src/cuda-sim/cuda-sim.cc b/src/cuda-sim/cuda-sim.cc index 21c3b4a..e8611fb 100644 --- a/src/cuda-sim/cuda-sim.cc +++ b/src/cuda-sim/cuda-sim.cc @@ -632,23 +632,35 @@ void ptx_instruction::pre_decode() // Assuming only one memory operand per instruction, // and maximum of two address registers for one memory operand. if( has_memory_read() || has_memory_write() ) { - ptx_instruction::const_iterator op=op_iter_begin(); - for ( ; op != op_iter_end(); op++, n++ ) { //process operands - const operand_info &o = *op; + ptx_instruction::const_iterator op=op_iter_begin(); + for ( ; op != op_iter_end(); op++, n++ ) { //process operands + const operand_info &o = *op; - // memory operand with addressing (ex. s[0x4] or g[$r1]) - if(o.is_memory_operand2()) { - // memory operand with one address register (ex. g[$r1] or s[$r2+0x4]) - if(o.get_double_operand_type() == 0 && o.is_memory_operand()){ - ar1 = o.reg_num(); - } - // memory operand with two address register (ex. s[$r1+$r1] or g[$r1+=$r2]) - else if(o.get_double_operand_type() == 1 || o.get_double_operand_type() == 2) { - ar1 = o.reg1_num(); - ar2 = o.reg2_num(); - } - } - } + if(o.is_memory_operand()) { + + // Check PTXPlus-type operand + // memory operand with addressing (ex. s[0x4] or g[$r1]) + if(o.is_memory_operand2()) { + + // memory operand with one address register (ex. g[$r1+0x4] or s[$r2+=0x4]) + if(o.get_double_operand_type() == 0 || o.get_double_operand_type() == 3){ + ar1 = o.reg_num(); + // TODO: address register in $r2+=0x4 should be an output register as well + } + // memory operand with two address register (ex. s[$r1+$r1] or g[$r1+=$r2]) + else if(o.get_double_operand_type() == 1 || o.get_double_operand_type() == 2) { + ar1 = o.reg1_num(); + ar2 = o.reg2_num(); + // TODO: first address register in $r1+=$r2 should be an output register as well + } + } + // Regular PTX operand + else if (o.get_symbol()->type()->get_key().is_reg()) { // Memory operand contains a register + ar1 = o.reg_num(); + } + + } + } } // get reconvergence pc |