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- check for unmapped hit now made on registered va

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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1024 cc03376c-175c-47c8-b038-4cd826a8556b
This commit is contained in:
jens
2013-08-25 17:33:35 +00:00
parent 02e35db54c
commit 8a6d599836
1 changed files with 3 additions and 28 deletions
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lib/CPUs/MIPS/src/core/mips_tlb.vhd
+3 -28
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@@ -261,34 +261,9 @@ inst_cam_va: entity work.cam
);
proc_entry_lo_umc:
process(clk)
variable index : integer;
begin
if rising_edge(clk) then
if query_in.vld = '1' then
hit_umc <= '0';
if query_in.vaddr(31 downto 29) = "100" then -- 80000000 to 9FFFFFFF
hit_umc <= '1';
end if;
end if;
end if;
end process;
proc_entry_lo_umuc:
process(clk)
variable index : integer;
begin
if rising_edge(clk) then
if query_in.vld = '1' then
hit_umuc <= '0';
if query_in.vaddr(31 downto 29) = "101" then -- A0000000 to BFFFFFFF
hit_umuc <= '1';
end if;
end if;
end if;
end process;
hit_umc <= '1' when vaddr_reg(31 downto 29) = "100" else '0';
hit_umuc <= '1' when vaddr_reg(31 downto 29) = "101" else '0';
tlb_entry_lo_result_translate:
if USE_TLB = true generate
tlb_entry_lo_result: