|
|
|
|
@ -863,11 +863,16 @@ begin
|
|
|
|
|
else
|
|
|
|
|
a_lt_lo := '0';
|
|
|
|
|
a_lt_hi := '0';
|
|
|
|
|
if unsigned(a_in(30 downto 0)) < unsigned(b_in(30 downto 0)) then
|
|
|
|
|
a_lt_lo := '1';
|
|
|
|
|
end if;
|
|
|
|
|
if unsigned(a_in(62 downto 31)) < unsigned(b_in(62 downto 31)) then
|
|
|
|
|
a_lt_hi := '1';
|
|
|
|
|
if is_X(a_in) or is_X(b_in) then
|
|
|
|
|
a_lt_lo := 'X';
|
|
|
|
|
a_lt_hi := 'X';
|
|
|
|
|
else
|
|
|
|
|
if unsigned(a_in(30 downto 0)) < unsigned(b_in(30 downto 0)) then
|
|
|
|
|
a_lt_lo := '1';
|
|
|
|
|
end if;
|
|
|
|
|
if unsigned(a_in(62 downto 31)) < unsigned(b_in(62 downto 31)) then
|
|
|
|
|
a_lt_hi := '1';
|
|
|
|
|
end if;
|
|
|
|
|
end if;
|
|
|
|
|
if l = '1' then
|
|
|
|
|
-- 64-bit comparison
|
|
|
|
|
@ -893,7 +898,6 @@ begin
|
|
|
|
|
|
|
|
|
|
-- CR result mux
|
|
|
|
|
bf := insn_bf(e_in.insn);
|
|
|
|
|
crnum := to_integer(unsigned(bf));
|
|
|
|
|
newcrf := (others => '0');
|
|
|
|
|
case e_in.sub_select is
|
|
|
|
|
when "000" =>
|
|
|
|
|
@ -908,8 +912,11 @@ begin
|
|
|
|
|
when "010" =>
|
|
|
|
|
newcrf := ppc_cmpeqb(a_in, b_in);
|
|
|
|
|
when "011" =>
|
|
|
|
|
if e_in.insn(1) = '1' then
|
|
|
|
|
if is_X(e_in.insn) then
|
|
|
|
|
newcrf := (others => 'X');
|
|
|
|
|
elsif e_in.insn(1) = '1' then
|
|
|
|
|
-- CR logical instructions
|
|
|
|
|
crnum := to_integer(unsigned(bf));
|
|
|
|
|
j := (7 - crnum) * 4;
|
|
|
|
|
newcrf := cr_in(j + 3 downto j);
|
|
|
|
|
bt := insn_bt(e_in.insn);
|
|
|
|
|
@ -948,7 +955,8 @@ begin
|
|
|
|
|
crnum := fxm_to_num(insn_fxm(e_in.insn));
|
|
|
|
|
write_cr_mask <= num_to_fxm(crnum);
|
|
|
|
|
end if;
|
|
|
|
|
elsif e_in.output_cr = '1' then
|
|
|
|
|
elsif e_in.output_cr = '1' and not is_X(bf) then
|
|
|
|
|
crnum := to_integer(unsigned(bf));
|
|
|
|
|
write_cr_mask <= num_to_fxm(crnum);
|
|
|
|
|
else
|
|
|
|
|
write_cr_mask <= (others => '0');
|
|
|
|
|
|
