github.com/antonblanchard.microwatt
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Merge branch 'mmu'

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Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Paul Mackerras
2020-05-14 15:41:51 +10:00
parent fcec66acf4 2843c99a71
commit c164a2f4ea
30 changed files with 2773 additions and 207 deletions
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6
fetch1.vhdl
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@@ -42,6 +42,8 @@ begin
if rising_edge(clk) then
if r /= r_next then
report "fetch1 rst:" & std_ulogic'image(rst) &
" IR:" & std_ulogic'image(e_in.virt_mode) &
" P:" & std_ulogic'image(e_in.priv_mode) &
" R:" & std_ulogic'image(e_in.redirect) &
" S:" & std_ulogic'image(stall_in) &
" T:" & std_ulogic'image(stop_in) &
@@ -67,9 +69,13 @@ begin
else
v.nia := RESET_ADDRESS;
end if;
v.virt_mode := '0';
v.priv_mode := '1';
v_int.stop_state := RUNNING;
elsif e_in.redirect = '1' then
v.nia := e_in.redirect_nia;
v.virt_mode := e_in.virt_mode;
v.priv_mode := e_in.priv_mode;
elsif stall_in = '0' then
-- For debug stop/step to work properly we need a little bit of