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[/] [neorv32/] [trunk/] [rtl/] [core/] [neorv32_cpu_regfile.vhd] - Diff between revs 25 and 27
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| Rev 25 |
Rev 27 |
| Line 117... |
Line 117... |
reg_file(to_integer(unsigned(ctrl_i(ctrl_rf_rd_adr4_c downto ctrl_rf_rd_adr0_c)))) <= rf_write_data;
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reg_file(to_integer(unsigned(ctrl_i(ctrl_rf_rd_adr4_c downto ctrl_rf_rd_adr0_c)))) <= rf_write_data;
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end if;
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end if;
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-- read --
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-- read --
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rs1_o <= reg_file(to_integer(unsigned(ctrl_i(ctrl_rf_rs1_adr4_c downto ctrl_rf_rs1_adr0_c))));
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rs1_o <= reg_file(to_integer(unsigned(ctrl_i(ctrl_rf_rs1_adr4_c downto ctrl_rf_rs1_adr0_c))));
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rs2_o <= reg_file(to_integer(unsigned(ctrl_i(ctrl_rf_rs2_adr4_c downto ctrl_rf_rs2_adr0_c))));
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rs2_o <= reg_file(to_integer(unsigned(ctrl_i(ctrl_rf_rs2_adr4_c downto ctrl_rf_rs2_adr0_c))));
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else -- embedded register file with 16 entries
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else -- embedded register file with 16 entries
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-- write --
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-- write --
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if (ctrl_i(ctrl_rf_wb_en_c) = '1') and ((valid_wr = '1') or (rf_r0_is_reg_c = false)) then -- valid write-back
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if (ctrl_i(ctrl_rf_wb_en_c) = '1') and ((valid_wr = '1') or (rf_r0_is_reg_c = false)) then -- valid write-back
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reg_file_emb(to_integer(unsigned(ctrl_i(ctrl_rf_rd_adr3_c downto ctrl_rf_rd_adr0_c)))) <= rf_write_data;
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reg_file_emb(to_integer(unsigned(ctrl_i(ctrl_rf_rd_adr3_c downto ctrl_rf_rd_adr0_c)))) <= rf_write_data;
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end if;
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end if;
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