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Remove nia from loadstore and multiply

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Neither unit needs the NIA, so remove it.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
This commit is contained in:
Anton Blanchard 2019-09-11 21:42:37 +10:00 committed by Anton Blanchard
parent 8b88e26ece
commit 1d00c75ecc
2 changed files with 1 additions and 11 deletions
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2
common.vhdl
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@ -56,7 +56,6 @@ package common is
type Decode2ToMultiplyType is record
valid: std_ulogic;
insn_type: insn_type_t;
nia: std_ulogic_vector(63 downto 0);
write_reg: std_ulogic_vector(4 downto 0);
data1: std_ulogic_vector(64 downto 0);
data2: std_ulogic_vector(64 downto 0);
@ -95,7 +94,6 @@ package common is
type Decode2ToLoadstore1Type is record
valid : std_ulogic;
nia: std_ulogic_vector(63 downto 0);
load : std_ulogic; -- is this a load or store
addr1 : std_ulogic_vector(63 downto 0);
addr2 : std_ulogic_vector(63 downto 0);

10
decode2.vhdl
View File

@ -188,13 +188,7 @@ begin
decode2_0: process(clk)
begin
if rising_edge(clk) then
if rin.e.valid = '1' then
report "execute " & to_hstring(rin.e.nia);
end if;
if rin.l.valid = '1' then
report "execute " & to_hstring(rin.e.nia);
end if;
if rin.m.valid = '1' then
if rin.e.valid = '1' or rin.l.valid = '1' or rin.m.valid = '1' then
report "execute " & to_hstring(rin.e.nia);
end if;
r <= rin;
@ -268,7 +262,6 @@ begin
v.e.const3 := decode_const_c(d_in.decode.const_c, d_in.insn);
-- multiply unit
v.m.nia := d_in.nia;
v.m.insn_type := d_in.decode.insn_type;
mul_a := decoded_reg_a.data;
mul_b := decoded_reg_b.data;
@ -296,7 +289,6 @@ begin
end if;
-- load/store unit
v.l.nia := d_in.nia;
v.l.update_reg := decoded_reg_a.reg;
v.l.addr1 := decoded_reg_a.data;
v.l.addr2 := decoded_reg_b.data;