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Process based risc boiler plate

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Lemonochrome 2023-11-26 23:13:44 +01:00
parent c251bc227b
commit fcfba19562
2 changed files with 76 additions and 12 deletions
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17
cpu_project/cpu_project.xpr
View file

@ -60,7 +60,7 @@
<Option Name="EnableBDX" Val="FALSE"/>
<Option Name="DSABoardId" Val="basys3"/>
<Option Name="FeatureSet" Val="FeatureSet_Classic"/>
<Option Name="WTXSimLaunchSim" Val="175"/>
<Option Name="WTXSimLaunchSim" Val="219"/>
<Option Name="WTModelSimLaunchSim" Val="0"/>
<Option Name="WTQuestaLaunchSim" Val="0"/>
<Option Name="WTIesLaunchSim" Val="0"/>
@ -91,6 +91,12 @@
<FileSets Version="1" Minor="32">
<FileSet Name="sources_1" Type="DesignSrcs" RelSrcDir="$PSRCDIR/sources_1" RelGenDir="$PGENDIR/sources_1">
<Filter Type="Srcs"/>
<File Path="$PPRDIR/../src/register.vhd">
<FileInfo>
<Attr Name="UsedIn" Val="synthesis"/>
<Attr Name="UsedIn" Val="simulation"/>
</FileInfo>
</File>
<File Path="$PPRDIR/../src/cpu.vhd">
<FileInfo>
<Attr Name="UsedIn" Val="synthesis"/>
@ -104,13 +110,6 @@
<Attr Name="UsedIn" Val="simulation"/>
</FileInfo>
</File>
<File Path="$PPRDIR/../src/data_memory.vhd">
<FileInfo>
<Attr Name="AutoDisabled" Val="1"/>
<Attr Name="UsedIn" Val="synthesis"/>
<Attr Name="UsedIn" Val="simulation"/>
</FileInfo>
</File>
<File Path="$PPRDIR/../src/instruction_memory.vhd">
<FileInfo>
<Attr Name="AutoDisabled" Val="1"/>
@ -118,7 +117,7 @@
<Attr Name="UsedIn" Val="simulation"/>
</FileInfo>
</File>
<File Path="$PPRDIR/../src/register.vhd">
<File Path="$PPRDIR/../src/data_memory.vhd">
<FileInfo>
<Attr Name="AutoDisabled" Val="1"/>
<Attr Name="UsedIn" Val="synthesis"/>

71
src/cpu.vhd
View file

@ -56,9 +56,74 @@ ARCHITECTURE cpu_arch OF cpu IS
flags : OUT STD_LOGIC_VECTOR(3 DOWNTO 0) -- Flags de l'ALU (C, N, Z, O)
);
END COMPONENT;
begin
-- Signaux internes
signal PC : STD_LOGIC_VECTOR (7 downto 0) := "00000000"; -- Program Counter
signal IR : STD_LOGIC_VECTOR (31 downto 0); -- Instruction Register
signal A : STD_LOGIC_VECTOR (7 downto 0);
signal B : STD_LOGIC_VECTOR (7 downto 0);
signal C : STD_LOGIC_VECTOR (7 downto 0);
BEGIN
-- Instantiation des composants
RegisterFile_Instance: reg PORT MAP (
address_A => "0000",
address_B => "0000",
address_W => "0000",
W_Enable => '0',
W_Data => "00000000",
reset => '0',
clk => clk,
A_Data => open,
B_Data => open
);
-- Pipeline
-- Lecture Instruction (LI)
LI: process(clk)
begin
if rising_edge(clk) then
-- Charger les instruction
end if;
end process;
DI: process(clk)
begin
if rising_edge(clk) then
-- Decoder IR et init A B C
end if;
end process;
EX: process(clk)
begin
if rising_edge(clk) then
-- Executer instruction si nécéssaire
end if;
end process;
MEM: process(clk)
begin
if rising_edge(clk) then
-- Ecrire ou lire memoire des données
end if;
end process;
RE: process(clk)
begin
if rising_edge(clk) then
-- Ecrire dans les registres
end if;
end process;
PC_UPDATE: process(clk)
begin
if rising_edge(clk) then
PC <= PC + 1;
end if;
end process;
END cpu_arch;