9086/system/alu_header.v

29 lines
1.0 KiB
Verilog

/* alu_header.v - Constants that will be useful to source code using the alu
This file is part of the 9086 project.
Copyright (c) 2024 Efthymios Kritikos
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
`define ALU_OP_BITS 3
`define ALU_OP_ADD 3'b000
`define ALU_OP_SUB 3'b001
`define ALU_OP_AND 3'b010
`define ALU_OP_OR 3'b011
`define ALU_OP_XOR 3'b100
`define ALU_OP_ADD_SIGNED_B 3'b101
`define ALU_OP_SUB_REVERSE 3'b110
`define ALU_OP_SHIFT_LEFT 3'b111