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decode2: Minor cleanup

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Remove unused variable is_reg in decode_input_reg_a.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Paul Mackerras
2019-12-05 12:42:31 +11:00
parent e4f475e17f
commit 23ade0b1c3
1 changed files with 0 additions and 3 deletions
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decode2.vhdl
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@@ -60,10 +60,7 @@ architecture behaviour of decode2 is
function decode_input_reg_a (t : input_reg_a_t; insn_in : std_ulogic_vector(31 downto 0);
reg_data : std_ulogic_vector(63 downto 0);
ispr : gspr_index_t) return decode_input_reg_t is
variable is_reg : std_ulogic;
begin
is_reg := '0' when insn_ra(insn_in) = "00000" else '1';
if t = RA or (t = RA_OR_ZERO and insn_ra(insn_in) /= "00000") then
assert is_fast_spr(ispr) = '0' report "Decode A says GPR but ISPR says SPR:" &
to_hstring(ispr) severity failure;