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Base CPU AFC Instruction wiring.

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This commit is contained in:
Yohan Boujon 2023-10-03 16:39:51 +02:00
parent bc98f10553
commit f44b8e02b8
3 changed files with 55 additions and 32 deletions
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36
cpu_project/cpu_project.xpr
View file

@ -91,18 +91,6 @@
<FileSets Version="1" Minor="31"> <FileSets Version="1" Minor="31">
<FileSet Name="sources_1" Type="DesignSrcs" RelSrcDir="$PSRCDIR/sources_1" RelGenDir="$PGENDIR/sources_1"> <FileSet Name="sources_1" Type="DesignSrcs" RelSrcDir="$PSRCDIR/sources_1" RelGenDir="$PGENDIR/sources_1">
<Filter Type="Srcs"/> <Filter Type="Srcs"/>
<File Path="$PPRDIR/../src/alu.vhd">
<FileInfo>
<Attr Name="UsedIn" Val="synthesis"/>
<Attr Name="UsedIn" Val="simulation"/>
</FileInfo>
</File>
<File Path="$PPRDIR/../src/data_memory.vhd">
<FileInfo>
<Attr Name="UsedIn" Val="synthesis"/>
<Attr Name="UsedIn" Val="simulation"/>
</FileInfo>
</File>
<File Path="$PPRDIR/../src/instruction_memory.vhd"> <File Path="$PPRDIR/../src/instruction_memory.vhd">
<FileInfo> <FileInfo>
<Attr Name="UsedIn" Val="synthesis"/> <Attr Name="UsedIn" Val="synthesis"/>
@ -127,6 +115,20 @@
<Attr Name="UsedIn" Val="simulation"/> <Attr Name="UsedIn" Val="simulation"/>
</FileInfo> </FileInfo>
</File> </File>
<File Path="$PPRDIR/../src/alu.vhd">
<FileInfo>
<Attr Name="AutoDisabled" Val="1"/>
<Attr Name="UsedIn" Val="synthesis"/>
<Attr Name="UsedIn" Val="simulation"/>
</FileInfo>
</File>
<File Path="$PPRDIR/../src/data_memory.vhd">
<FileInfo>
<Attr Name="AutoDisabled" Val="1"/>
<Attr Name="UsedIn" Val="synthesis"/>
<Attr Name="UsedIn" Val="simulation"/>
</FileInfo>
</File>
<Config> <Config>
<Option Name="DesignMode" Val="RTL"/> <Option Name="DesignMode" Val="RTL"/>
<Option Name="TopModule" Val="cpu"/> <Option Name="TopModule" Val="cpu"/>
@ -157,6 +159,14 @@
</FileSet> </FileSet>
<FileSet Name="utils_1" Type="Utils" RelSrcDir="$PSRCDIR/utils_1" RelGenDir="$PGENDIR/utils_1"> <FileSet Name="utils_1" Type="Utils" RelSrcDir="$PSRCDIR/utils_1" RelGenDir="$PGENDIR/utils_1">
<Filter Type="Utils"/> <Filter Type="Utils"/>
<File Path="$PSRCDIR/utils_1/imports/synth_1/data_memory.dcp">
<FileInfo>
<Attr Name="UsedIn" Val="synthesis"/>
<Attr Name="UsedIn" Val="implementation"/>
<Attr Name="UsedInSteps" Val="synth_1"/>
<Attr Name="AutoDcp" Val="1"/>
</FileInfo>
</File>
<Config> <Config>
<Option Name="TopAutoSet" Val="TRUE"/> <Option Name="TopAutoSet" Val="TRUE"/>
</Config> </Config>
@ -184,7 +194,7 @@
</Simulator> </Simulator>
</Simulators> </Simulators>
<Runs Version="1" Minor="20"> <Runs Version="1" Minor="20">
<Run Id="synth_1" Type="Ft3:Synth" SrcSet="sources_1" Part="xc7a35tcpg236-1" ConstrsSet="constrs_1" Description="Vivado Synthesis Defaults" AutoIncrementalCheckpoint="true" WriteIncrSynthDcp="false" State="current" Dir="$PRUNDIR/synth_1" IncludeInArchive="true" IsChild="false" AutoIncrementalDir="$PSRCDIR/utils_1/imports/synth_1" AutoRQSDir="$PSRCDIR/utils_1/imports/synth_1"> <Run Id="synth_1" Type="Ft3:Synth" SrcSet="sources_1" Part="xc7a35tcpg236-1" ConstrsSet="constrs_1" Description="Vivado Synthesis Defaults" AutoIncrementalCheckpoint="true" IncrementalCheckpoint="$PSRCDIR/utils_1/imports/synth_1/data_memory.dcp" WriteIncrSynthDcp="false" State="current" Dir="$PRUNDIR/synth_1" IncludeInArchive="true" IsChild="false" AutoIncrementalDir="$PSRCDIR/utils_1/imports/synth_1" AutoRQSDir="$PSRCDIR/utils_1/imports/synth_1">
<Strategy Version="1" Minor="2"> <Strategy Version="1" Minor="2">
<StratHandle Name="Vivado Synthesis Defaults" Flow="Vivado Synthesis 2023"> <StratHandle Name="Vivado Synthesis Defaults" Flow="Vivado Synthesis 2023">
<Desc>Vivado Synthesis Defaults</Desc> <Desc>Vivado Synthesis Defaults</Desc>

35
src/cpu.vhd
View file

@ -4,6 +4,10 @@ use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL; use IEEE.STD_LOGIC_UNSIGNED.ALL;
entity cpu is entity cpu is
Port (
clk : in STD_LOGIC;
instruction_pointer : in STD_LOGIC_VECTOR(7 downto 0)
);
end cpu; end cpu;
ARCHITECTURE cpu_arch OF cpu IS ARCHITECTURE cpu_arch OF cpu IS
@ -56,7 +60,7 @@ ARCHITECTURE cpu_arch OF cpu IS
B_in: in STD_LOGIC_VECTOR(7 downto 0); B_in: in STD_LOGIC_VECTOR(7 downto 0);
C_in: in STD_LOGIC_VECTOR(7 downto 0); C_in: in STD_LOGIC_VECTOR(7 downto 0);
OP_in: in STD_LOGIC_VECTOR(3 downto 0); OP_in: in STD_LOGIC_VECTOR(3 downto 0);
clk : in STD_LOGIC; clk: in STD_LOGIC;
A_out: out STD_LOGIC_VECTOR(7 downto 0); A_out: out STD_LOGIC_VECTOR(7 downto 0);
B_out: out STD_LOGIC_VECTOR(7 downto 0); B_out: out STD_LOGIC_VECTOR(7 downto 0);
C_out: out STD_LOGIC_VECTOR(7 downto 0); C_out: out STD_LOGIC_VECTOR(7 downto 0);
@ -64,16 +68,25 @@ ARCHITECTURE cpu_arch OF cpu IS
); );
END COMPONENT; END COMPONENT;
---FOR ALL : instruction USE ENTITY work.instruction; signal li_A, di_A, ex_A, mem_A, re_A : STD_LOGIC_VECTOR(7 downto 0);
begin signal li_B, di_B, ex_B, mem_B, re_B : STD_LOGIC_VECTOR(7 downto 0);
step1_lidi : pipeline_step PORT MAP(); signal li_C, di_C, ex_C, mem_C, re_C : STD_LOGIC_VECTOR(7 downto 0);
step2_diex : pipeline_step PORT MAP(); signal di_OP, ex_OP, mem_OP, re_OP : STD_LOGIC_VECTOR(3 downto 0);
step3_exmem : pipeline_step PORT MAP(); signal li_OP : STD_LOGIC_VECTOR(31 downto 0);
step4_memre : pipeline_step PORT MAP(); ---signal main_clk : STD_LOGIC;
instruction_memory_inst : instruction PORT MAP(); signal empty_8 : STD_LOGIC_VECTOR(7 downto 0);
memory_register_inst : reg PORT MAP(); signal empty_4 : STD_LOGIC_VECTOR(3 downto 0);
alu_inst : alu PORT_MAP();
data_memory_inst : data_memory PORT MAP(); begin
step1_lidi : pipeline_step PORT MAP(li_A, li_B, li_C, li_OP(7 downto 4), clk, di_A, di_B, di_C, di_OP);
step2_diex : pipeline_step PORT MAP(di_A, di_B, di_C, di_OP, clk, ex_A, ex_B, ex_C, ex_OP);
step3_exmem : pipeline_step PORT MAP(ex_A, ex_B, ex_C, ex_OP, clk, mem_A, mem_B, mem_C, mem_OP);
step4_memre : pipeline_step PORT MAP(mem_A, mem_B, mem_C, mem_OP, clk, re_A, re_B, re_C, re_OP);
instruction_memory_inst : instruction PORT MAP(instruction_pointer, li_OP , clk);
memory_register_inst : reg PORT MAP(empty_4, empty_4, re_A(3 downto 0), re_OP(0), re_B, '0', clk, empty_8, empty_8);
-- alu_inst : alu PORT MAP();
-- data_memory_inst : data_memory PORT MAP();
END cpu_arch; END cpu_arch;

6
src/pipeline_step.vhd
View file

@ -23,9 +23,9 @@ begin
begin begin
if clk'event and clk='1' then if clk'event and clk='1' then
A_out <= A_in; A_out <= A_in;
A_out <= B_in; B_out <= B_in;
A_out <= C_in; C_out <= C_in;
A_out <= OP_in; OP_out <= OP_in;
end if; end if;
end process; end process;
end behavior_pipeline_step; end behavior_pipeline_step;