| // Copyright 2023 Google LLC |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| decoder Vliw16 { |
| namespace sim::vliw16; |
| opcode_enum = "isa16::OpcodeEnum"; |
| G16; |
| }; |
| |
| decoder Vliw24 { |
| namespace sim::vliw24; |
| opcode_enum = "isa24::OpcodeEnum"; |
| G24; |
| }; |
| |
| decoder Vliw32 { |
| namespace sim::vliw32; |
| opcode_enum = "isa32::OpcodeEnum"; |
| G32; |
| }; |
| |
| format Inst32Format[32] { |
| fields: |
| unsigned bits[25]; |
| unsigned opcode[7]; |
| }; |
| |
| format Inst24Format[24] { |
| fields: |
| unsigned bits[24]; |
| }; |
| |
| format Inst16Format[16] { |
| fields: |
| unsigned bits[16]; |
| }; |
| |
| format vliw[256] { |
| fields: |
| format Inst32Format i0[4]; |
| format Inst24Format i1[4]; |
| format Inst16Format i2[2]; |
| }; |
| |
| |
| instruction group G16[16] : Inst16Format { |
| |
| }; |
| |
| instruction group G24[24] : Inst24Format { |
| |
| }; |
| |
| instruction group G32[32] : Inst32Format { |
| |
| }; |