github.com/antonblanchard.microwatt
1
0
Fork 0
mirror of https://github.com/antonblanchard/microwatt.git synced 2026-04-17 00:00:48 +00:00
Code Releases Activity

Add forwarding in the register file

Browse Source 
We need this for the upcoming pipelining patches.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
This commit is contained in:
Anton Blanchard
2019-09-09 16:36:47 +10:00
committed by Anton Blanchard
parent 2241b71674
commit 79a14c8e37
1 changed files with 11 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
register_file.vhdl
View File

@@ -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