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-rw-r--r--tests/arch/gowin/.gitignore3
-rw-r--r--tests/arch/gowin/add_sub.ys13
-rw-r--r--tests/arch/gowin/adffs.ys56
-rw-r--r--tests/arch/gowin/counter.ys15
-rw-r--r--tests/arch/gowin/dffs.ys25
-rw-r--r--tests/arch/gowin/fsm.ys11
-rw-r--r--tests/arch/gowin/init.v224
-rw-r--r--tests/arch/gowin/init.ys74
-rw-r--r--tests/arch/gowin/logic.ys13
-rw-r--r--tests/arch/gowin/memory.ys18
-rw-r--r--tests/arch/gowin/mux.ys49
-rwxr-xr-xtests/arch/gowin/run-test.sh20
-rw-r--r--tests/arch/gowin/shifter.ys12
-rw-r--r--tests/arch/gowin/tribuf.ys13
14 files changed, 546 insertions, 0 deletions
diff --git a/tests/arch/gowin/.gitignore b/tests/arch/gowin/.gitignore
new file mode 100644
index 000000000..b48f808a1
--- /dev/null
+++ b/tests/arch/gowin/.gitignore
@@ -0,0 +1,3 @@
+/*.log
+/*.out
+/run-test.mk
diff --git a/tests/arch/gowin/add_sub.ys b/tests/arch/gowin/add_sub.ys
new file mode 100644
index 000000000..9b53dc0a9
--- /dev/null
+++ b/tests/arch/gowin/add_sub.ys
@@ -0,0 +1,13 @@
+read_verilog ../common/add_sub.v
+hierarchy -top top
+proc
+equiv_opt -assert -map +/gowin/cells_sim.v synth_gowin # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd top # Constrain all select calls below inside the top module
+select -assert-count 8 t:ALU
+select -assert-count 8 t:OBUF
+select -assert-count 8 t:IBUF
+select -assert-count 1 t:GND
+select -assert-count 1 t:VCC
+select -assert-none t:ALU t:OBUF t:IBUF t:GND t:VCC %% t:* %D
+
diff --git a/tests/arch/gowin/adffs.ys b/tests/arch/gowin/adffs.ys
new file mode 100644
index 000000000..87fba83a6
--- /dev/null
+++ b/tests/arch/gowin/adffs.ys
@@ -0,0 +1,56 @@
+read_verilog ../common/adffs.v
+design -save read
+
+hierarchy -top adff
+proc
+equiv_opt -async2sync -assert -map +/gowin/cells_sim.v synth_gowin # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd adff # Constrain all select calls below inside the top module
+stat
+select -assert-count 1 t:DFFC
+select -assert-count 3 t:IBUF
+select -assert-count 1 t:OBUF
+
+select -assert-none t:DFFC t:IBUF t:OBUF %% t:* %D
+
+
+design -load read
+hierarchy -top adffn
+proc
+equiv_opt -async2sync -assert -map +/gowin/cells_sim.v synth_gowin # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd adffn # Constrain all select calls below inside the top module
+select -assert-count 1 t:DFFC
+select -assert-count 1 t:LUT1
+select -assert-count 3 t:IBUF
+select -assert-count 1 t:OBUF
+
+select -assert-none t:DFFC t:IBUF t:OBUF t:LUT1 %% t:* %D
+
+
+design -load read
+hierarchy -top dffs
+proc
+equiv_opt -async2sync -assert -map +/gowin/cells_sim.v synth_gowin # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd dffs # Constrain all select calls below inside the top module
+select -assert-count 1 t:DFF
+select -assert-count 1 t:LUT2
+select -assert-count 4 t:IBUF
+select -assert-count 1 t:OBUF
+
+select -assert-none t:DFF t:LUT2 t:IBUF t:OBUF %% t:* %D
+
+
+design -load read
+hierarchy -top ndffnr
+proc
+equiv_opt -async2sync -assert -map +/gowin/cells_sim.v synth_gowin # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd ndffnr # Constrain all select calls below inside the top module
+select -assert-count 1 t:DFFNR
+select -assert-count 1 t:LUT1
+select -assert-count 4 t:IBUF
+select -assert-count 1 t:OBUF
+
+select -assert-none t:DFFNR t:IBUF t:OBUF t:LUT1 %% t:* %D
diff --git a/tests/arch/gowin/counter.ys b/tests/arch/gowin/counter.ys
new file mode 100644
index 000000000..920479d44
--- /dev/null
+++ b/tests/arch/gowin/counter.ys
@@ -0,0 +1,15 @@
+read_verilog ../common/counter.v
+hierarchy -top top
+proc
+flatten
+equiv_opt -map +/gowin/cells_sim.v synth_gowin # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd top # Constrain all select calls below inside the top module
+
+select -assert-count 8 t:DFFC
+select -assert-count 8 t:ALU
+select -assert-count 1 t:GND
+select -assert-count 1 t:VCC
+select -assert-count 2 t:IBUF
+select -assert-count 8 t:OBUF
+select -assert-none t:DFFC t:ALU t:GND t:VCC t:IBUF t:OBUF %% t:* %D
diff --git a/tests/arch/gowin/dffs.ys b/tests/arch/gowin/dffs.ys
new file mode 100644
index 000000000..9c012213f
--- /dev/null
+++ b/tests/arch/gowin/dffs.ys
@@ -0,0 +1,25 @@
+read_verilog ../common/dffs.v
+design -save read
+
+hierarchy -top dff
+proc
+equiv_opt -assert -map +/gowin/cells_sim.v synth_gowin # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd dff # Constrain all select calls below inside the top module
+select -assert-count 1 t:DFF
+select -assert-count 2 t:IBUF
+select -assert-count 1 t:OBUF
+
+select -assert-none t:DFF t:IBUF t:OBUF %% t:* %D
+
+design -load read
+hierarchy -top dffe
+proc
+equiv_opt -assert -map +/gowin/cells_sim.v synth_gowin # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd dffe # Constrain all select calls below inside the top module
+select -assert-count 1 t:DFFE
+select -assert-count 3 t:IBUF
+select -assert-count 1 t:OBUF
+
+select -assert-none t:DFFE t:IBUF t:OBUF %% t:* %D
diff --git a/tests/arch/gowin/fsm.ys b/tests/arch/gowin/fsm.ys
new file mode 100644
index 000000000..ce4504522
--- /dev/null
+++ b/tests/arch/gowin/fsm.ys
@@ -0,0 +1,11 @@
+read_verilog ../common/fsm.v
+hierarchy -top fsm
+proc
+flatten
+
+equiv_opt -run :prove -map +/gowin/cells_sim.v synth_gowin # equivalency check
+miter -equiv -make_assert -flatten gold gate miter
+sat -verify -show-all -dump_vcd x.vcd -prove-asserts -set-at 1 in_reset 1 -seq 20 -prove-skip 1 miter
+
+#design -load postopt
+#shell
diff --git a/tests/arch/gowin/init.v b/tests/arch/gowin/init.v
new file mode 100644
index 000000000..3c30f602d
--- /dev/null
+++ b/tests/arch/gowin/init.v
@@ -0,0 +1,224 @@
+module myDFF (output reg Q, input CLK, D);
+ parameter [0:0] INIT = 1'b0;
+ initial Q = INIT;
+ always @(posedge CLK)
+ Q <= D;
+endmodule
+
+module myDFFE (output reg Q, input D, CLK, CE);
+ parameter [0:0] INIT = 1'b0;
+ initial Q = INIT;
+ always @(posedge CLK) begin
+ if (CE)
+ Q <= D;
+ end
+endmodule // DFFE (positive clock edge; clock enable)
+
+
+module myDFFS (output reg Q, input D, CLK, SET);
+ parameter [0:0] INIT = 1'b1;
+ initial Q = INIT;
+ always @(posedge CLK) begin
+ if (SET)
+ Q <= 1'b1;
+ else
+ Q <= D;
+ end
+endmodule // DFFS (positive clock edge; synchronous set)
+
+
+module myDFFSE (output reg Q, input D, CLK, CE, SET);
+ parameter [0:0] INIT = 1'b1;
+ initial Q = INIT;
+ always @(posedge CLK) begin
+ if (SET)
+ Q <= 1'b1;
+ else if (CE)
+ Q <= D;
+end
+endmodule // DFFSE (positive clock edge; synchronous set takes precedence over clock enable)
+
+
+module myDFFR (output reg Q, input D, CLK, RESET);
+ parameter [0:0] INIT = 1'b0;
+ initial Q = INIT;
+ always @(posedge CLK) begin
+ if (RESET)
+ Q <= 1'b0;
+ else
+ Q <= D;
+ end
+endmodule // DFFR (positive clock edge; synchronous reset)
+
+
+module myDFFRE (output reg Q, input D, CLK, CE, RESET);
+ parameter [0:0] INIT = 1'b0;
+ initial Q = INIT;
+ always @(posedge CLK) begin
+ if (RESET)
+ Q <= 1'b0;
+ else if (CE)
+ Q <= D;
+ end
+endmodule // DFFRE (positive clock edge; synchronous reset takes precedence over clock enable)
+
+
+module myDFFP (output reg Q, input D, CLK, PRESET);
+ parameter [0:0] INIT = 1'b1;
+ initial Q = INIT;
+ always @(posedge CLK or posedge PRESET) begin
+ if(PRESET)
+ Q <= 1'b1;
+ else
+ Q <= D;
+ end
+endmodule // DFFP (positive clock edge; asynchronous preset)
+
+
+module myDFFPE (output reg Q, input D, CLK, CE, PRESET);
+ parameter [0:0] INIT = 1'b1;
+ initial Q = INIT;
+ always @(posedge CLK or posedge PRESET) begin
+ if(PRESET)
+ Q <= 1'b1;
+ else if (CE)
+ Q <= D;
+ end
+endmodule // DFFPE (positive clock edge; asynchronous preset; clock enable)
+
+
+module myDFFC (output reg Q, input D, CLK, CLEAR);
+ parameter [0:0] INIT = 1'b0;
+ initial Q = INIT;
+ always @(posedge CLK or posedge CLEAR) begin
+ if(CLEAR)
+ Q <= 1'b0;
+ else
+ Q <= D;
+ end
+endmodule // DFFC (positive clock edge; asynchronous clear)
+
+
+module myDFFCE (output reg Q, input D, CLK, CE, CLEAR);
+ parameter [0:0] INIT = 1'b0;
+ initial Q = INIT;
+ always @(posedge CLK or posedge CLEAR) begin
+ if(CLEAR)
+ Q <= 1'b0;
+ else if (CE)
+ Q <= D;
+ end
+endmodule // DFFCE (positive clock edge; asynchronous clear; clock enable)
+
+
+module myDFFN (output reg Q, input CLK, D);
+ parameter [0:0] INIT = 1'b0;
+ initial Q = INIT;
+ always @(negedge CLK)
+ Q <= D;
+endmodule
+
+module myDFFNE (output reg Q, input D, CLK, CE);
+ parameter [0:0] INIT = 1'b0;
+ initial Q = INIT;
+ always @(negedge CLK) begin
+ if (CE)
+ Q <= D;
+ end
+endmodule // DFFNE (negative clock edge; clock enable)
+
+
+module myDFFNS (output reg Q, input D, CLK, SET);
+ parameter [0:0] INIT = 1'b1;
+ initial Q = INIT;
+ always @(negedge CLK) begin
+ if (SET)
+ Q <= 1'b1;
+ else
+ Q <= D;
+ end
+endmodule // DFFNS (negative clock edge; synchronous set)
+
+
+module myDFFNSE (output reg Q, input D, CLK, CE, SET);
+ parameter [0:0] INIT = 1'b1;
+ initial Q = INIT;
+ always @(negedge CLK) begin
+ if (SET)
+ Q <= 1'b1;
+ else if (CE)
+ Q <= D;
+end
+endmodule // DFFNSE (negative clock edge; synchronous set takes precedence over clock enable)
+
+
+module myDFFNR (output reg Q, input D, CLK, RESET);
+ parameter [0:0] INIT = 1'b0;
+ initial Q = INIT;
+ always @(negedge CLK) begin
+ if (RESET)
+ Q <= 1'b0;
+ else
+ Q <= D;
+ end
+endmodule // DFFNR (negative clock edge; synchronous reset)
+
+
+module myDFFNRE (output reg Q, input D, CLK, CE, RESET);
+ parameter [0:0] INIT = 1'b0;
+ initial Q = INIT;
+ always @(negedge CLK) begin
+ if (RESET)
+ Q <= 1'b0;
+ else if (CE)
+ Q <= D;
+ end
+endmodule // DFFNRE (negative clock edge; synchronous reset takes precedence over clock enable)
+
+
+module myDFFNP (output reg Q, input D, CLK, PRESET);
+ parameter [0:0] INIT = 1'b1;
+ initial Q = INIT;
+ always @(negedge CLK or posedge PRESET) begin
+ if(PRESET)
+ Q <= 1'b1;
+ else
+ Q <= D;
+ end
+endmodule // DFFNP (negative clock edge; asynchronous preset)
+
+
+module myDFFNPE (output reg Q, input D, CLK, CE, PRESET);
+ parameter [0:0] INIT = 1'b1;
+ initial Q = INIT;
+ always @(negedge CLK or posedge PRESET) begin
+ if(PRESET)
+ Q <= 1'b1;
+ else if (CE)
+ Q <= D;
+ end
+endmodule // DFFNPE (negative clock edge; asynchronous preset; clock enable)
+
+
+module myDFFNC (output reg Q, input D, CLK, CLEAR);
+ parameter [0:0] INIT = 1'b0;
+ initial Q = INIT;
+ always @(negedge CLK or posedge CLEAR) begin
+ if(CLEAR)
+ Q <= 1'b0;
+ else
+ Q <= D;
+ end
+endmodule // DFFNC (negative clock edge; asynchronous clear)
+
+
+module myDFFNCE (output reg Q, input D, CLK, CE, CLEAR);
+ parameter [0:0] INIT = 1'b0;
+ initial Q = INIT;
+ always @(negedge CLK or posedge CLEAR) begin
+ if(CLEAR)
+ Q <= 1'b0;
+ else if (CE)
+ Q <= D;
+ end
+endmodule // DFFNCE (negative clock edge; asynchronous clear; clock enable)
diff --git a/tests/arch/gowin/init.ys b/tests/arch/gowin/init.ys
new file mode 100644
index 000000000..ddc0e4757
--- /dev/null
+++ b/tests/arch/gowin/init.ys
@@ -0,0 +1,74 @@
+read_verilog init.v
+read_verilog -lib +/gowin/cells_sim.v
+design -save read
+
+proc
+flatten
+synth_gowin -run coarse:
+
+# check if all init values are handled
+check -assert -noinit
+# check if every flop mapped correctly
+select -assert-count 1 t:DFF
+select -assert-count 1 t:DFFC
+select -assert-count 1 t:DFFCE
+select -assert-count 1 t:DFFE
+select -assert-count 1 t:DFFN
+select -assert-count 1 t:DFFNC
+select -assert-count 1 t:DFFNCE
+select -assert-count 1 t:DFFNE
+select -assert-count 1 t:DFFNP
+select -assert-count 1 t:DFFNPE
+select -assert-count 1 t:DFFNR
+select -assert-count 1 t:DFFNRE
+select -assert-count 1 t:DFFNS
+select -assert-count 1 t:DFFNSE
+select -assert-count 1 t:DFFP
+select -assert-count 1 t:DFFPE
+select -assert-count 1 t:DFFR
+select -assert-count 1 t:DFFRE
+select -assert-count 1 t:DFFS
+select -assert-count 1 t:DFFSE
+
+delete
+design -load read
+
+# these should synth to a flop with reset
+chparam -set INIT 1 myDFF myDFFN myDFFE myDFFNE
+
+# async should give a warning
+# sync should synth to a mux
+chparam -set INIT 0 myDFF*S* myDFF*P*
+chparam -set INIT 1 myDFF*R* myDFF*C*
+
+proc
+flatten
+synth_gowin -run coarse:
+
+# check the flops mapped as expected
+select -assert-count 1 t:DFF
+select -assert-count 1 t:DFFC
+select -assert-count 1 t:DFFCE
+select -assert-count 1 t:DFFE
+select -assert-count 1 t:DFFN
+select -assert-count 1 t:DFFNC
+select -assert-count 1 t:DFFNCE
+select -assert-count 1 t:DFFNE
+select -assert-count 1 t:DFFNP
+select -assert-count 1 t:DFFNPE
+select -assert-count 0 t:DFFNR
+select -assert-count 0 t:DFFNRE
+select -assert-count 2 t:DFFNS
+select -assert-count 2 t:DFFNSE
+select -assert-count 1 t:DFFP
+select -assert-count 1 t:DFFPE
+select -assert-count 0 t:DFFR
+select -assert-count 0 t:DFFRE
+select -assert-count 2 t:DFFS
+select -assert-count 2 t:DFFSE
+select -assert-count 12 t:LUT2
+
+# check the expected leftover init values
+# this would happen if your reset value is not the initial value
+# which would be weird
+select -assert-count 8 a:init
diff --git a/tests/arch/gowin/logic.ys b/tests/arch/gowin/logic.ys
new file mode 100644
index 000000000..d2b9e4540
--- /dev/null
+++ b/tests/arch/gowin/logic.ys
@@ -0,0 +1,13 @@
+read_verilog ../common/logic.v
+hierarchy -top top
+proc
+equiv_opt -assert -map +/gowin/cells_sim.v synth_gowin # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd top # Constrain all select calls below inside the top module
+
+select -assert-count 1 t:LUT1
+select -assert-count 6 t:LUT2
+select -assert-count 2 t:LUT4
+select -assert-count 8 t:IBUF
+select -assert-count 10 t:OBUF
+select -assert-none t:LUT1 t:LUT2 t:LUT4 t:IBUF t:OBUF %% t:* %D
diff --git a/tests/arch/gowin/memory.ys b/tests/arch/gowin/memory.ys
new file mode 100644
index 000000000..8f88cdd7c
--- /dev/null
+++ b/tests/arch/gowin/memory.ys
@@ -0,0 +1,18 @@
+read_verilog ../common/memory.v
+hierarchy -top top
+proc
+memory -nomap
+equiv_opt -run :prove -map +/gowin/cells_sim.v synth_gowin
+memory
+opt -full
+
+miter -equiv -flatten -make_assert -make_outputs gold gate miter
+#ERROR: Called with -verify and proof did fail!
+#sat -verify -prove-asserts -seq 5 -set-init-zero -show-inputs -show-outputs miter
+sat -prove-asserts -seq 5 -set-init-zero -show-inputs -show-outputs miter
+
+design -load postopt
+cd top
+select -assert-count 8 t:RAM16S4
+# other logic present that is not simple
+#select -assert-none t:RAM16S4 %% t:* %D
diff --git a/tests/arch/gowin/mux.ys b/tests/arch/gowin/mux.ys
new file mode 100644
index 000000000..afad29a89
--- /dev/null
+++ b/tests/arch/gowin/mux.ys
@@ -0,0 +1,49 @@
+read_verilog ../common/mux.v
+design -save read
+
+hierarchy -top mux2
+proc
+equiv_opt -assert -map +/gowin/cells_sim.v synth_gowin # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd mux2 # Constrain all select calls below inside the top module
+select -assert-count 1 t:LUT3
+select -assert-count 3 t:IBUF
+select -assert-count 1 t:OBUF
+
+select -assert-none t:LUT3 t:IBUF t:OBUF %% t:* %D
+
+design -load read
+hierarchy -top mux4
+proc
+equiv_opt -assert -map +/gowin/cells_sim.v synth_gowin # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd mux4 # Constrain all select calls below inside the top module
+select -assert-count 4 t:LUT4
+select -assert-count 2 t:MUX2_LUT5
+select -assert-count 1 t:MUX2_LUT6
+select -assert-count 6 t:IBUF
+select -assert-count 1 t:OBUF
+
+select -assert-none t:LUT4 t:MUX2_LUT6 t:MUX2_LUT5 t:IBUF t:OBUF %% t:* %D
+
+design -load read
+hierarchy -top mux8
+proc
+equiv_opt -assert -map +/gowin/cells_sim.v synth_gowin # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd mux8 # Constrain all select calls below inside the top module
+select -assert-count 11 t:IBUF
+select -assert-count 1 t:OBUF
+
+select -assert-none t:LUT4 t:MUX2_LUT6 t:MUX2_LUT5 t:IBUF t:OBUF %% t:* %D
+
+design -load read
+hierarchy -top mux16
+proc
+equiv_opt -assert -map +/gowin/cells_sim.v synth_gowin # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd mux16 # Constrain all select calls below inside the top module
+select -assert-count 20 t:IBUF
+select -assert-count 1 t:OBUF
+
+select -assert-none t:LUT4 t:MUX2_LUT6 t:MUX2_LUT5 t:MUX2_LUT6 t:MUX2_LUT7 t:MUX2_LUT8 t:IBUF t:OBUF %% t:* %D
diff --git a/tests/arch/gowin/run-test.sh b/tests/arch/gowin/run-test.sh
new file mode 100755
index 000000000..bf19b887d
--- /dev/null
+++ b/tests/arch/gowin/run-test.sh
@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+set -e
+{
+echo "all::"
+for x in *.ys; do
+ echo "all:: run-$x"
+ echo "run-$x:"
+ echo " @echo 'Running $x..'"
+ echo " @../../../yosys -ql ${x%.ys}.log -w 'Yosys has only limited support for tri-state logic at the moment.' $x"
+done
+for s in *.sh; do
+ if [ "$s" != "run-test.sh" ]; then
+ echo "all:: run-$s"
+ echo "run-$s:"
+ echo " @echo 'Running $s..'"
+ echo " @bash $s"
+ fi
+done
+} > run-test.mk
+exec ${MAKE:-make} -f run-test.mk
diff --git a/tests/arch/gowin/shifter.ys b/tests/arch/gowin/shifter.ys
new file mode 100644
index 000000000..b43b1e869
--- /dev/null
+++ b/tests/arch/gowin/shifter.ys
@@ -0,0 +1,12 @@
+read_verilog ../common/shifter.v
+hierarchy -top top
+proc
+flatten
+equiv_opt -assert -map +/gowin/cells_sim.v synth_gowin # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd top # Constrain all select calls below inside the top module
+
+select -assert-count 8 t:DFF
+select -assert-count 2 t:IBUF
+select -assert-count 8 t:OBUF
+select -assert-none t:DFF t:IBUF t:OBUF %% t:* %D
diff --git a/tests/arch/gowin/tribuf.ys b/tests/arch/gowin/tribuf.ys
new file mode 100644
index 000000000..5855b9d97
--- /dev/null
+++ b/tests/arch/gowin/tribuf.ys
@@ -0,0 +1,13 @@
+read_verilog ../common/tribuf.v
+hierarchy -top tristate
+proc
+tribuf
+flatten
+synth
+equiv_opt -assert -map +/gowin/cells_sim.v -map +/simcells.v synth_gowin # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd tristate # Constrain all select calls below inside the top module
+#Internal cell type used. Need support it.
+select -assert-count 1 t:TBUF
+select -assert-count 2 t:IBUF
+select -assert-none t:TBUF t:IBUF %% t:* %D
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 14:40:50 +0000