| // -*- mode:c++ -*- |
| |
| // Copyright (c) 2007 MIPS Technologies, Inc. |
| // 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. |
| // |
| // Authors: Korey Sewell |
| // Jaidev Patwardhan |
| |
| //////////////////////////////////////////////////////////////////// |
| // |
| // Bitfield definitions. |
| // |
| |
| def bitfield OPCODE <31:26>; |
| def bitfield OPCODE_HI <31:29>; |
| def bitfield OPCODE_LO <28:26>; |
| |
| def bitfield REGIMM <20:16>; |
| def bitfield REGIMM_HI <20:19>; |
| def bitfield REGIMM_LO <18:16>; |
| |
| def bitfield FUNCTION < 5: 0>; |
| def bitfield FUNCTION_HI < 5: 3>; |
| def bitfield FUNCTION_LO < 2: 0>; |
| |
| def bitfield RS <25:21>; |
| def bitfield RS_MSB <25:25>; |
| def bitfield RS_HI <25:24>; |
| def bitfield RS_LO <23:21>; |
| def bitfield RS_SRL <25:22>; |
| def bitfield RS_RT <25:16>; |
| def bitfield RT <20:16>; |
| def bitfield RT_HI <20:19>; |
| def bitfield RT_LO <18:16>; |
| def bitfield RT_RD <20:11>; |
| def bitfield RD <15:11>; |
| |
| def bitfield INTIMM <15: 0>; |
| def bitfield RS_RT_INTIMM <25: 0>; |
| |
| // Floating-point operate format |
| def bitfield FMT <25:21>; |
| def bitfield FR <25:21>; |
| def bitfield FT <20:16>; |
| def bitfield FS <15:11>; |
| def bitfield FD <10:6>; |
| |
| def bitfield ND <17:17>; |
| def bitfield TF <16:16>; |
| def bitfield MOVCI <16:16>; |
| def bitfield MOVCF <16:16>; |
| def bitfield SRL <21:21>; |
| def bitfield SRLV < 6: 6>; |
| def bitfield SA <10: 6>; |
| |
| // Floating Point Condition Codes |
| def bitfield CC <10:8>; |
| def bitfield BRANCH_CC <20:18>; |
| |
| // CP0 Register Select |
| def bitfield SEL < 2: 0>; |
| |
| // INTERRUPTS |
| def bitfield SC < 5: 5>; |
| |
| // Branch format |
| def bitfield OFFSET <15: 0>; // displacement |
| |
| // Jmp format |
| def bitfield JMPTARG <25: 0>; |
| def bitfield HINT <10: 6>; |
| |
| def bitfield SYSCALLCODE <25: 6>; |
| def bitfield TRAPCODE <15:13>; |
| |
| // EXT/INS instructions |
| def bitfield MSB <15:11>; |
| def bitfield LSB <10: 6>; |
| |
| // M5 instructions |
| def bitfield M5FUNC <7:0>; |
| |
| // DSP instructions |
| def bitfield OP <10:6>; |
| def bitfield OP_HI <10:9>; |
| def bitfield OP_LO <8:6>; |
| def bitfield DSPSA <23:21>; |
| def bitfield HILOSA <25:20>; |
| def bitfield RDDSPMASK <21:16>; |
| def bitfield WRDSPMASK <16:11>; |
| def bitfield ACSRC <22:21>; |
| def bitfield ACDST <12:11>; |
| def bitfield BP <12:11>; |
| |
| // MT Instructions |
| def bitfield POS <10: 6>; |
| def bitfield MT_U <5:5>; |
| def bitfield MT_H <4:4>; |
| |
| //Cache Ops |
| def bitfield CACHE_OP <20:16>; |
