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Merge pull request #1574 from YosysHQ/eddie/xilinx_lutram

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xilinx: add LUTRAM rules for RAM32M, RAM64M
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Eddie Hung 2019-12-16 21:48:21 -08:00 • committed by GitHub
commit a73f96594f
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13 changed files with 529 additions and 65 deletions
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34
tests/arch/xilinx/bug1460.ys Normal file
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read_verilog <<EOT
module register_file(
input wire clk,
input wire write_enable,
input wire [63:0] write_data,
input wire [4:0] write_reg,
input wire [4:0] read1_reg,
input wire [4:0] read2_reg,
input wire [4:0] read3_reg,
output reg [63:0] read1_data,
output reg [63:0] read2_data,
output reg [63:0] read3_data
);
reg [63:0] registers[0:31];
always @(posedge clk) begin
if (write_enable == 1'b1) begin
registers[write_reg] <= write_data;
end
end
always @(all) begin
read1_data <= registers[read1_reg];
read2_data <= registers[read2_reg];
read3_data <= registers[read3_reg];
end
endmodule
EOT
synth_xilinx
cd register_file
select -assert-count 32 t:RAM32M
select -assert-none t:* t:BUFG %d t:RAM32M %d

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tests/arch/xilinx/lutram.ys Normal file
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#read_verilog ../common/lutram.v
#hierarchy -top lutram_1w1r -chparam A_WIDTH 4
#proc
#memory -nomap
#equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx
#memory
#opt -full
#
#miter -equiv -flatten -make_assert -make_outputs gold gate miter
#sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter
#
#design -load postopt
#cd lutram_1w1r
#select -assert-count 1 t:BUFG
#select -assert-count 8 t:FDRE
#select -assert-count 8 t:RAM16X1D
#select -assert-none t:BUFG t:FDRE t:RAM16X1D %% t:* %D
design -reset
read_verilog ../common/lutram.v
hierarchy -top lutram_1w1r -chparam A_WIDTH 5
proc
memory -nomap
equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx
memory
opt -full
miter -equiv -flatten -make_assert -make_outputs gold gate miter
sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter
design -load postopt
cd lutram_1w1r
select -assert-count 1 t:BUFG
select -assert-count 8 t:FDRE
select -assert-count 8 t:RAM32X1D
select -assert-none t:BUFG t:FDRE t:RAM32X1D %% t:* %D
design -reset
read_verilog ../common/lutram.v
hierarchy -top lutram_1w1r
proc
memory -nomap
equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx
memory
opt -full
miter -equiv -flatten -make_assert -make_outputs gold gate miter
sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter
design -load postopt
cd lutram_1w1r
select -assert-count 1 t:BUFG
select -assert-count 8 t:FDRE
select -assert-count 8 t:RAM64X1D
select -assert-none t:BUFG t:FDRE t:RAM64X1D %% t:* %D
design -reset
read_verilog ../common/lutram.v
hierarchy -top lutram_1w3r
proc
memory -nomap
equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx
memory
opt -full
miter -equiv -flatten -make_assert -make_outputs gold gate miter
sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter
design -load postopt
cd lutram_1w3r
select -assert-count 1 t:BUFG
select -assert-count 24 t:FDRE
select -assert-count 4 t:RAM32M
select -assert-none t:BUFG t:FDRE t:RAM32M %% t:* %D
design -reset
read_verilog ../common/lutram.v
hierarchy -top lutram_1w3r -chparam A_WIDTH 6
proc
memory -nomap
equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx
memory
opt -full
miter -equiv -flatten -make_assert -make_outputs gold gate miter
sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter
design -load postopt
cd lutram_1w3r
select -assert-count 1 t:BUFG
select -assert-count 24 t:FDRE
select -assert-count 8 t:RAM64M
select -assert-none t:BUFG t:FDRE t:RAM64M %% t:* %D
design -reset
read_verilog ../common/lutram.v
hierarchy -top lutram_1w1r -chparam A_WIDTH 5 -chparam D_WIDTH 6
proc
memory -nomap
equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx
memory
opt -full
miter -equiv -flatten -make_assert -make_outputs gold gate miter
sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter
design -load postopt
cd lutram_1w1r
select -assert-count 1 t:BUFG
select -assert-count 6 t:FDRE
select -assert-count 1 t:RAM32M
select -assert-none t:BUFG t:FDRE t:RAM32M %% t:* %D
design -reset
read_verilog ../common/lutram.v
hierarchy -top lutram_1w1r -chparam A_WIDTH 6 -chparam D_WIDTH 6
proc
memory -nomap
equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx
memory
opt -full
miter -equiv -flatten -make_assert -make_outputs gold gate miter
sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter
design -load postopt
cd lutram_1w1r
select -assert-count 1 t:BUFG
select -assert-count 6 t:FDRE
select -assert-count 2 t:RAM64M
select -assert-none t:BUFG t:FDRE t:RAM64M %% t:* %D

17
tests/arch/xilinx/memory.ys
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read_verilog ../common/memory.v
hierarchy -top top
proc
memory -nomap
equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx
memory
opt -full
miter -equiv -flatten -make_assert -make_outputs gold gate miter
sat -verify -prove-asserts -seq 5 -set-init-zero -show-inputs -show-outputs miter
design -load postopt
cd top
select -assert-count 1 t:BUFG
select -assert-count 8 t:FDRE
select -assert-count 8 t:RAM64X1D
select -assert-none t:BUFG t:FDRE t:RAM64X1D %% t:* %D