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| @@ -1,41 +1,44 @@ | ||
| package riscv_pkg; | ||
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| import alu_opcodes_pkg::*; | ||
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| export alu_opcodes_pkg::*; | ||
| import csr_pkg::*; | ||
| export csr_pkg::*; | ||
| // opcodes | ||
| parameter LOAD_OPCODE = 5'b00_000; | ||
| parameter MISC_MEM_OPCODE = 5'b00_011; | ||
| parameter OP_IMM_OPCODE = 5'b00_100; | ||
| parameter AUIPC_OPCODE = 5'b00_101; | ||
| parameter STORE_OPCODE = 5'b01_000; | ||
| parameter OP_OPCODE = 5'b01_100; | ||
| parameter LUI_OPCODE = 5'b01_101; | ||
| parameter BRANCH_OPCODE = 5'b11_000; | ||
| parameter JALR_OPCODE = 5'b11_001; | ||
| parameter JAL_OPCODE = 5'b11_011; | ||
| parameter SYSTEM_OPCODE = 5'b11_100; | ||
| localparam LOAD_OPCODE = 5'b00_000; | ||
| localparam MISC_MEM_OPCODE = 5'b00_011; | ||
| localparam OP_IMM_OPCODE = 5'b00_100; | ||
| localparam AUIPC_OPCODE = 5'b00_101; | ||
| localparam STORE_OPCODE = 5'b01_000; | ||
| localparam OP_OPCODE = 5'b01_100; | ||
| localparam LUI_OPCODE = 5'b01_101; | ||
| localparam BRANCH_OPCODE = 5'b11_000; | ||
| localparam JALR_OPCODE = 5'b11_001; | ||
| localparam JAL_OPCODE = 5'b11_011; | ||
| localparam SYSTEM_OPCODE = 5'b11_100; | ||
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| // dmem type load store | ||
| parameter LDST_B = 3'b000; | ||
| parameter LDST_H = 3'b001; | ||
| parameter LDST_W = 3'b010; | ||
| parameter LDST_BU = 3'b100; | ||
| parameter LDST_HU = 3'b101; | ||
| localparam LDST_B = 3'b000; | ||
| localparam LDST_H = 3'b001; | ||
| localparam LDST_W = 3'b010; | ||
| localparam LDST_BU = 3'b100; | ||
| localparam LDST_HU = 3'b101; | ||
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| // operand a selection | ||
| parameter OP_A_RS1 = 2'b00; | ||
| parameter OP_A_CURR_PC = 2'b01; | ||
| parameter OP_A_ZERO = 2'b10; | ||
| localparam OP_A_RS1 = 2'b00; | ||
| localparam OP_A_CURR_PC = 2'b01; | ||
| localparam OP_A_ZERO = 2'b10; | ||
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| // operand b selection | ||
| parameter OP_B_RS2 = 3'b000; | ||
| parameter OP_B_IMM_I = 3'b001; | ||
| parameter OP_B_IMM_U = 3'b010; | ||
| parameter OP_B_IMM_S = 3'b011; | ||
| parameter OP_B_INCR = 3'b100; | ||
| localparam OP_B_RS2 = 3'b000; | ||
| localparam OP_B_IMM_I = 3'b001; | ||
| localparam OP_B_IMM_U = 3'b010; | ||
| localparam OP_B_IMM_S = 3'b011; | ||
| localparam OP_B_INCR = 3'b100; | ||
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| // writeback source selection | ||
| parameter WB_EX_RESULT = 1'b0; | ||
| parameter WB_LSU_DATA = 1'b1; | ||
| localparam WB_EX_RESULT = 2'd0; | ||
| localparam WB_LSU_DATA = 2'd1; | ||
| localparam WB_CSR_DATA = 2'd2; | ||
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| endpackage | ||
| endpackage |