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Merge pull request #32 from antonblanchard/register-file-forwarding

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Add forwarding in the register file
This commit is contained in:
Anton Blanchard
2019-09-09 22:21:30 +10:00
committed by GitHub
parent 8bfd6e5eae 79a14c8e37
commit e0dfb3dce1
1 changed files with 11 additions and 11 deletions
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22
register_file.vhdl
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@@ -51,17 +51,17 @@ begin
d_out.read3_data <= registers(to_integer(unsigned(d_in.read3_reg)));
-- Forward any written data
--if w_in.write_enable = '1' then
--if d_in.read1_reg = w_in.write_reg then
--d_out.read1_data <= w_in.write_data;
--end if;
--if d_in.read2_reg = w_in.write_reg then
--d_out.read2_data <= w_in.write_data;
--end if;
--if d_in.read3_reg = w_in.write_reg then
--d_out.read3_data <= w_in.write_data;
--end if;
--end if;
if w_in.write_enable = '1' then
if d_in.read1_reg = w_in.write_reg then
d_out.read1_data <= w_in.write_data;
end if;
if d_in.read2_reg = w_in.write_reg then
d_out.read2_data <= w_in.write_data;
end if;
if d_in.read3_reg = w_in.write_reg then
d_out.read3_data <= w_in.write_data;
end if;
end if;
end process register_read_0;
-- debug