| // -*- mode:c++ -*- |
| |
| // Copyright (c) 2009 The University of Edinburgh |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer; |
| // redistributions in binary form must reproduce the above copyright |
| // notice, this list of conditions and the following disclaimer in the |
| // documentation and/or other materials provided with the distribution; |
| // neither the name of the copyright holders nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| //////////////////////////////////////////////////////////////////// |
| // |
| // Bitfield definitions. |
| // |
| // The endianness is the opposite to what's used here, so things |
| // are reversed sometimes. Not sure of a fix to this though... |
| |
| // Opcode fields |
| def bitfield OPCODE <31:26>; |
| def bitfield X_XO <10:0>; |
| def bitfield XO_XO <10:1>; |
| def bitfield A_XO <5:1>; |
| |
| // Register fields |
| def bitfield RA <20:16>; |
| def bitfield RB <15:11>; |
| def bitfield RS <25:21>; |
| def bitfield RT <25:21>; |
| def bitfield FRA <20:16>; |
| def bitfield FRB <15:11>; |
| def bitfield FRC <10:6>; |
| def bitfield FRS <25:21>; |
| def bitfield FRT <25:21>; |
| |
| // The record bit can be in two positions |
| // Used to enable setting of the condition register |
| def bitfield RC31 <0>; |
| def bitfield RC21 <10>; |
| |
| // Used to enable setting of the overflow flags |
| def bitfield OE <10>; |
| |
| // SPR field for mtspr instruction |
| def bitfield SPR <20:11>; |
| |
| // FXM field for mtcrf instruction |
| def bitfield FXM <19:12>; |
| |
| // Branch fields |
| def bitfield LK <0>; |
| def bitfield AA <1>; |
| |
| // Specifies a CR or FPSCR field |
| def bitfield BF <25:23>; |
| |
| // Fields for FPSCR manipulation instructions |
| def bitfield FLM <24:17>; |
| // Named so to avoid conflicts with potential template typenames |
| def bitfield L_FIELD <25>; |
| // Named so to avoid conflicts with range_map.hh |
| def bitfield W_FIELD <16>; |
| // Named so to avoid conflicts with range.hh |
| def bitfield U_FIELD <15:12>; |
| |
| // Field for specifying a bit in CR or FPSCR |
| def bitfield BT <25:21>; |
