diff options
Diffstat (limited to 'src/cuda-sim/instructions.cc')
| -rw-r--r-- | src/cuda-sim/instructions.cc | 91 |
1 files changed, 89 insertions, 2 deletions
diff --git a/src/cuda-sim/instructions.cc b/src/cuda-sim/instructions.cc index 7af157f..aaee2a2 100644 --- a/src/cuda-sim/instructions.cc +++ b/src/cuda-sim/instructions.cc @@ -48,7 +48,7 @@ using half_float::half; unsigned ptx_instruction::g_num_ptx_inst_uid=0; -bool g_debug_instruction = 1; +bool g_debug_instruction = 0; const char *g_opcode_string[NUM_OPCODES] = { @@ -3911,7 +3911,94 @@ void popc_impl( const ptx_instruction *pI, ptx_thread_info *thread ) } void prefetch_impl( const ptx_instruction *pI, ptx_thread_info *thread ) { inst_not_implemented(pI); } void prefetchu_impl( const ptx_instruction *pI, ptx_thread_info *thread ) { inst_not_implemented(pI); } -void prmt_impl( const ptx_instruction *pI, ptx_thread_info *thread ) { inst_not_implemented(pI); } + +int prmt_mode_present(int mode) +{ + int returnval=0; + switch(mode){ + case PRMT_F4E_MODE: + case PRMT_B4E_MODE: + case PRMT_RC8_MODE: + case PRMT_RC16_MODE: + case PRMT_ECL_MODE: + case PRMT_ECR_MODE: + returnval=1; + break; + default: + break; + } + return returnval; +} +int read_byte(int mode,int control,int d_sel_index,signed long long value){ + + int returnval; + int prmt_f4e_mode[4][4]={{0,1,2,3},{1,2,3,4},{2,3,4,5},{3,4,5,6}}; + int prmt_b4e_mode[4][4]={{0,7,6,5},{1,0,7,6},{2,1,0,7},{3,2,1,0}}; + int prmt_rc8_mode[4][4]={{0,0,0,0},{1,1,1,1},{2,2,2,2},{3,3,3,3}}; + int prmt_ecl_mode[4][4]={{0,1,2,3},{1,1,2,3},{2,2,2,3},{3,3,3,3}}; + int prmt_ecr_mode[4][4]={{0,0,0,0},{0,1,1,1},{0,1,2,2},{0,1,2,3}}; + int prmt_rc16_mode[4][4]={{0,1,0,1},{2,3,2,3},{0,1,0,1},{2,3,2,3}}; + + if(!prmt_mode_present(mode)){ + if(control&0x8){ + returnval=0xff; + } + else{ + returnval= (value>>(8*control)) & 0xff; + } + } + else{ + switch(mode){ + case PRMT_F4E_MODE: returnval=prmt_f4e_mode[control][d_sel_index];break; + case PRMT_B4E_MODE: returnval=prmt_b4e_mode[control][d_sel_index];break; + case PRMT_RC8_MODE: returnval=prmt_rc8_mode[control][d_sel_index];break; + case PRMT_ECL_MODE: returnval=prmt_ecl_mode[control][d_sel_index];break; + case PRMT_ECR_MODE: returnval=prmt_ecr_mode[control][d_sel_index];break; + case PRMT_RC16_MODE: returnval=prmt_rc16_mode[control][d_sel_index];break; + default: printf("ERROR\n");break; + } + } + return (returnval<<8*d_sel_index); +} + +void prmt_impl( const ptx_instruction *pI, ptx_thread_info *thread ) { + + ptx_reg_t src1_data, src2_data, src3_data,tmpdata,data; + const operand_info &dst = pI->dst(); + const operand_info &src1 = pI->src1(); + const operand_info &src2 = pI->src2(); + const operand_info &src3 = pI->src3(); + + unsigned mode = pI->prmt_op(); + unsigned i_type = pI->get_type(); + + src1_data = thread->get_operand_value(src1, dst, i_type, thread, 1); + src2_data = thread->get_operand_value(src2, dst, i_type, thread, 1); + src3_data = thread->get_operand_value(src3, dst, i_type, thread, 1); + + tmpdata.s64=src1_data.s32|(src2_data.s64<<32); + int ctl[4]; + + if(!prmt_mode_present(mode)){ + ctl[0]=(src3_data.s32>>0)&0xf; + ctl[1]=(src3_data.s32>>4)&0xf; + ctl[2]=(src3_data.s32>>8)&0xf; + ctl[3]=(src3_data.s32>>12)&0xf; + } + else{ + ctl[0]=ctl[1]=ctl[2]=ctl[3]=(src3_data.s32>>0)&0x3; + } + + data.s32=0; + data.s32=data.s32|read_byte(mode,ctl[0],0,tmpdata.s64); //First byte-0 + data.s32=data.s32|read_byte(mode,ctl[1],1,tmpdata.s64); //Second byte-1 + data.s32=data.s32|read_byte(mode,ctl[2],2,tmpdata.s64); //Third byte-2 + data.s32=data.s32|read_byte(mode,ctl[3],3,tmpdata.s64); //Fourth byte-3 + + thread->set_operand_value(dst,data, i_type, thread, pI); + + +} void rcp_impl( const ptx_instruction *pI, ptx_thread_info *thread ) { |