diff --git a/fu/vector/VectorAllReduceRTL.py b/fu/vector/VectorAllReduceRTL.py
index 58d91ac4..cd740f61 100644
--- a/fu/vector/VectorAllReduceRTL.py
+++ b/fu/vector/VectorAllReduceRTL.py
@@ -90,6 +90,7 @@ def construct(s, DataType, CtrlType,
       high = (i + 1) * sub_bw
       # s.connect() works with slice objects directly during elaboration.
       s.temp_result[i][0:sub_bw] //= s.recv_in[0].msg.payload[low:high]
+      s.temp_result[i][sub_bw:data_bitwidth] //= 0
 
     @update
     def update_result():
diff --git a/fu/vector/VectorMulComboRTL.py b/fu/vector/VectorMulComboRTL.py
index 880f88d1..b77236e9 100644
--- a/fu/vector/VectorMulComboRTL.py
+++ b/fu/vector/VectorMulComboRTL.py
@@ -95,8 +95,8 @@ def update_input_output():
 
       for i in range(num_lanes):
         s.temp_result[i] @= TempDataType(0)
-        s.Fu[i].recv_in[0].msg[0:sub_bw] @= FuDataType()
-        s.Fu[i].recv_in[1].msg[0:sub_bw] @= FuDataType()
+        s.Fu[i].recv_in[0].msg @= 0
+        s.Fu[i].recv_in[1].msg @= 0
 
       if s.recv_opt.msg.operation == OPT_VEC_MUL:
         # Connection: split into vectorized FUs
diff --git a/multi_cgra/test/sv_test/MeshMultiCgraRTL_2x2_fir_scalar_tb.v b/multi_cgra/test/sv_test/MeshMultiCgraRTL_2x2_fir_scalar_tb.v
index 6f2063df..ac470ba4 100644
--- a/multi_cgra/test/sv_test/MeshMultiCgraRTL_2x2_fir_scalar_tb.v
+++ b/multi_cgra/test/sv_test/MeshMultiCgraRTL_2x2_fir_scalar_tb.v
@@ -3,6 +3,7 @@
 `include "header.sv"
 
 // vcs -sverilog -full64 -timescale=1ns/1ps ../MeshMultiCgraRTL__explicit__pickled.v MeshMultiCgraRTL_2x2_fir_scalar_tb.v -debug_access+all
+// vcs -sverilog -full64 -timescale=1ns/1ps ../../../../../coredec_acc_soc/accelerator_soc/MeshMultiCgraRTL__explicit__pickled.v ../MeshMultiCgraRTL_2x2_fir_scalar_tb.v -debug_access+all +incdir+..
 
 module cgra_test
 (
diff --git a/multi_cgra/test/sv_test/MeshMultiCgraRTL_2x2_fir_vector_global_reduce_tb.v b/multi_cgra/test/sv_test/MeshMultiCgraRTL_2x2_fir_vector_global_reduce_tb.v
new file mode 100644
index 00000000..a8356e3c
--- /dev/null
+++ b/multi_cgra/test/sv_test/MeshMultiCgraRTL_2x2_fir_vector_global_reduce_tb.v
@@ -0,0 +1,473 @@
+`timescale 1ps/1ps
+
+`include "header_fir_vector_global_reduce.sv"
+
+// vcs -sverilog -full64 -timescale=1ns/1ps ../../MeshMultiCgraRTL__explicit_vector_global_reduce__pickled.v ../MeshMultiCgraRTL_2x2_fir_vector_global_reduce_tb.v -debug_access+all +incdir+..
+// vcs -sverilog -full64 -timescale=1ns/1ps ../../../../../coredec_acc_soc/accelerator_soc/MeshMultiCgraRTL__explicit_vector_global_reduce__pickled.v ../MeshMultiCgraRTL_2x2_fir_vector_global_reduce_tb.v -debug_access+all +incdir+..
+
+module cgra_test
+(
+);
+
+  logic [0:0] clk;
+  logic [0:0] reset;
+
+  IntraCgraPacket_4_2x2_16_8_2_CgraPayload__d294fd7ecd3c5b69 recv_from_cpu_pkt__msg;
+  logic [0:0] recv_from_cpu_pkt__rdy;
+  logic [0:0] recv_from_cpu_pkt__val;
+
+  IntraCgraPacket_4_2x2_16_8_2_CgraPayload__d294fd7ecd3c5b69 send_to_cpu_pkt__msg;
+  logic [0:0] send_to_cpu_pkt__rdy;
+  logic [0:0] send_to_cpu_pkt__val;
+
+  MeshMultiCgraRTL__explicit_vector_global_reduce MultiCGRA (.*);
+
+  int  PASS         = 'd0;
+  time pass_time_of = 'd0;
+
+  initial
+  begin
+    $display("\nTEST begin\n");
+
+    clk = 1'b0;
+    recv_from_cpu_pkt__val = 1'b0;
+    send_to_cpu_pkt__rdy   = 1'b1;
+
+    reset = 1'b0;
+    #7
+    reset = 1'b1;
+    #50
+    reset = 1'b0;
+    #10
+/*
+typedef struct packed {
+  logic [4:0] src;
+  logic [4:0] dst;
+  logic [1:0] src_cgra_id;
+  logic [1:0] dst_cgra_id;
+  logic [0:0] src_cgra_x;
+  logic [0:0] src_cgra_y;
+  logic [0:0] dst_cgra_x;
+  logic [0:0] dst_cgra_y;
+  logic [7:0] opaque;
+  logic [0:0] vc_id;
+  MultiCgraPayload_Cmd_Data_DataAddr_Ctrl_CtrlAddr__d9140faa89010e06 payload;
+} IntraCgraPacket_4_2x2_16_8_2_CgraPayload__432fde8bfb7da0ed;
+*/
+/*
+typedef struct packed {
+  logic [4:0] cmd;
+  CgraData_32_1_1_1__payload_32__predicate_1__bypass_1__delay_1 data;
+  logic [6:0] data_addr;
+  CGRAConfig_7_4_2_4_4_3__49d22cda396bec88 ctrl;
+  logic [3:0] ctrl_addr;
+} MultiCgraPayload_Cmd_Data_DataAddr_Ctrl_CtrlAddr__d9140faa89010e06;
+*/
+/*
+typedef struct packed {
+  logic [31:0] payload;
+  logic [0:0] predicate;
+  logic [0:0] bypass;
+  logic [0:0] delay;
+} CgraData_32_1_1_1__payload_32__predicate_1__bypass_1__delay_1;
+*/
+/*
+typedef struct packed {
+  logic [6:0] operation;
+  logic [3:0][2:0] fu_in;
+  logic [7:0][2:0] routing_xbar_outport;
+  logic [7:0][1:0] fu_xbar_outport;
+  logic [2:0] vector_factor_power;
+  logic [0:0] is_last_ctrl;
+  logic [3:0][1:0] write_reg_from;
+  logic [3:0][3:0] write_reg_idx;
+  logic [3:0][0:0] read_reg_from;
+  logic [3:0][3:0] read_reg_idx;
+} CGRAConfig_7_4_2_4_4_3__49d22cda396bec88;
+*/
+
+    #10
+    recv_from_cpu_pkt__val = 1'b1;
+    recv_from_cpu_pkt__msg = unpack_pkt('h0000000180002000200020003000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0000000180002000200020003008000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h000000018001e001c001a0019010000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0000000180026002400220021018000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00000001800220020001e001d020000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h000000018002a002800260025028000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0000000180002000200020003030000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00000001a0000000000000007000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0000000100000000000000009000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00000000e000000000000004d000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0000000060000000000000000004e8d100100001400020000200000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h000000006000000000000000000208d100000004000080000100001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h000000006000000000000000000018d100000000000000000000002);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h000000006000000000000000000018d100000000000000000000003);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0000000220000000000000005000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0000000080000000000000003000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00000000c0000000000000003000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00000000a0000000000000003000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0000000000000000000000000000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0008000100000000000000009000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00080000e000000000000004d000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h000800006000000000000000000018d100000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h000800006000000000000000000108d100b00001000020000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h000800006000000000000000000238d100000000000000000100002);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h000800006000000000000000000018d100000000000000000000003);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0008000080000000000000003000000000000000000000000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0008000080000000000000003000000000000000000000000000002);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00080000c0000000000000003000000000000000000000000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00080000c0000000000000003000000000000200000000000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00080000a0000000000000003000000000000000000000000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0008000000000000000000000000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00200001a0000000000000005000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0020000100000000000000009000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00200000e000000000000004d000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h002000006000000000000000000018d100000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h002000006000000000000000000198d100100001000020000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0020000060000000000000000000c8d100000004000080000100002);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h002000006000000000000000000378d100100000040000000200003);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0020000000000000000000000000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00280001a0000000000000009000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0028000100000000000000009000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00280000e000000000000004d000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h002800006000000000000000000018d100000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h002800006000000000000000000018d100000000000000000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0028000060000000000000000002e8d100100001010020000000002);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0028000060000000000000000000b8d100000000040000000100003);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0028000000000000000000000000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00400001a0000000000000005000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00400001a0000000000000001000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0040000100000000000000009000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00400000e000000000000004d000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h004000006000000000000000000208d100400001440020000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h004000006000000000000000000198d100000004000080000100001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0040000060000000000000000000c00200000000040000000200002);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h004000006000000000000000000018d100000000000000000000003);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00400000c0000000000000003000000000000300000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0040000000000000000000000000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00480001a0000000000000003000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0048000100000000000000009000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00480000e000000000000004d000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h004800006000000000000000000018d100000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h004800006000000000000000000198d100300004040080000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h004800006000000000000000000018d100000000000000000000002);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0048000060000000000000000001000a00200000100000000200003);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0048000000000000000000000000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00009001a0000000000000007000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0000900100000000000000009000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00009000e000000000000004d000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0000900060000000000000000004e8d100100001400020000200000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h000090006000000000000000000208d100000004000080000100001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h000090006000000000000000000018d100000000000000000000002);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h000090006000000000000000000018d100000000000000000000003);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0000900080000000000000003000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00009000c0000000000000003000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00009000a0000000000000003000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0000900000000000000000000000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0008900100000000000000009000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00089000e000000000000004d000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h000890006000000000000000000018d100000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h000890006000000000000000000108d100b00001000020000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h000890006000000000000000000238d100000000000000000100002);
+    #10 // Might need to send this twice if CGRA is really not rdy.
+    recv_from_cpu_pkt__msg = unpack_pkt('h000890006000000000000000000018d100000000000000000000003);
+    #10 // Second send.
+    recv_from_cpu_pkt__msg = unpack_pkt('h000890006000000000000000000018d100000000000000000000003);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0008900080000000000000003000000000000000000000000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0008900080000000000000003000000000000000000000000000002);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00089000c0000000000000003000000000000000000000000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00089000c0000000000000003000000000000200000000000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00089000a0000000000000003000000000000000000000000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0008900000000000000000000000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00209001a0000000000000005000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0020900100000000000000009000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00209000e000000000000004d000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h002090006000000000000000000018d100000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h002090006000000000000000000198d100100001000020000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0020900060000000000000000000c8d100000004000080000100002);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h002090006000000000000000000378d100100000040000000200003);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0020900000000000000000000000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00289001a0000000000000009000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0028900100000000000000009000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00289000e000000000000004d000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h002890006000000000000000000018d100000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h002890006000000000000000000018d100000000000000000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0028900060000000000000000002e8d100100001010020000000002);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0028900060000000000000000000b8d100000000040000000100003);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0028900000000000000000000000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00409001a0000000000000005000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00409001a0000000000000001000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0040900100000000000000009000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00409000e000000000000004d000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h004090006000000000000000000208d100400001440020000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h004090006000000000000000000198d100000004000080000100001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0040900060000000000000000000c00200000000040000000200002);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h004090006000000000000000000018d100000000000000000000003);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00409000c0000000000000003000000000000300000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0040900000000000000000000000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00489001a0000000000000003000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0048900100000000000000009000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h00489000e000000000000004d000000000000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h004890006000000000000000000018d100000000000000000000000);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h004890006000000000000000000198d100300004040080000000001);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h004890006000000000000000000018d100000000000000000000002);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0048900060000000000000000001000a00200000100000000200003);
+    #10
+    recv_from_cpu_pkt__msg = unpack_pkt('h0048900000000000000000000000000000000000000000000000000);
+
+    #10
+    recv_from_cpu_pkt__val = 0;
+
+    #10000
+
+    if ('d1 == PASS) $display("TEST PASSED at %0t.", pass_time_of);
+    else             $display("TEST FAILED at %0t.", $time);
+
+    $display("%d", unpack_pkt('h01800001c000000000000229700238d100000000000000000100000).payload.data.payload);
+
+    $display("#########cgra 0 tile 0 cnst mem#################");
+    for (int i = 0; i < 512; i++)
+    begin
+      if ( !$isunknown(MultiCGRA.cgra__0.tile__0.const_mem.reg_file.regs[i]) )
+        $display("cgra0tile0cnst %d %d %d (%d)", i, MultiCGRA.cgra__0.tile__0.const_mem.reg_file.regs[i].payload, MultiCGRA.cgra__0.tile__0.const_mem.reg_file.regs[i].predicate, MultiCGRA.cgra__0.tile__0.const_mem.reg_file.regs[i]);
+    end
+    $display("##########################");
+    for (int i = 0; i < 512; i++)
+    begin
+      if ( !$isunknown(MultiCGRA.cgra__0.tile__1.const_mem.reg_file.regs[i]) )
+        $display("cgra0tile1cnst %d %d", i, MultiCGRA.cgra__0.tile__1.const_mem.reg_file.regs[i]);
+    end
+    $display("##########################");
+    for (int i = 0; i < 512; i++)
+    begin
+      if ( !$isunknown(MultiCGRA.cgra__0.tile__4.const_mem.reg_file.regs[i]) )
+        $display("cgra0tile4cnst %d %d", i, MultiCGRA.cgra__0.tile__4.const_mem.reg_file.regs[i]);
+    end
+    $display("##########################");
+    for (int i = 0; i < 512; i++)
+    begin
+      if ( !$isunknown(MultiCGRA.cgra__0.tile__5.const_mem.reg_file.regs[i]) )
+        $display("cgra0tile5cnst %d %d", i, MultiCGRA.cgra__0.tile__5.const_mem.reg_file.regs[i]);
+    end
+    $display("##########################");
+    for (int i = 0; i < 512; i++)
+    begin
+      if ( !$isunknown(MultiCGRA.cgra__0.tile__8.const_mem.reg_file.regs[i]) )
+        $display("cgra0tile8cnst %d %d", i, MultiCGRA.cgra__0.tile__8.const_mem.reg_file.regs[i]);
+    end
+    $display("##########################");
+    for (int i = 0; i < 512; i++)
+    begin
+      if ( !$isunknown(MultiCGRA.cgra__0.tile__9.const_mem.reg_file.regs[i]) )
+        $display("cgra0tile9cnst %d %d", i, MultiCGRA.cgra__0.tile__9.const_mem.reg_file.regs[i]);
+    end
+
+    $display("********cgra 0 ctrl mem******************");
+    for (int i = 0; i < 512; i++)
+    begin
+      if ( !$isunknown(MultiCGRA.cgra__0.tile__0.ctrl_mem.reg_file.regs[i]) )
+        $display("cgra0tile0ctrl %d %d", i, MultiCGRA.cgra__0.tile__0.ctrl_mem.reg_file.regs[i]);
+    end
+    $display("##########################");
+    for (int i = 0; i < 512; i++)
+    begin
+      if ( !$isunknown(MultiCGRA.cgra__0.tile__1.ctrl_mem.reg_file.regs[i]) )
+        $display("cgra0tile1ctrl %d %d", i, MultiCGRA.cgra__0.tile__1.ctrl_mem.reg_file.regs[i]);
+    end
+    $display("##########################");
+    for (int i = 0; i < 512; i++)
+    begin
+      if ( !$isunknown(MultiCGRA.cgra__0.tile__4.ctrl_mem.reg_file.regs[i]) )
+        $display("cgra0tile4ctrl %d %d", i, MultiCGRA.cgra__0.tile__4.ctrl_mem.reg_file.regs[i]);
+    end
+    $display("##########################");
+    for (int i = 0; i < 512; i++)
+    begin
+      if ( !$isunknown(MultiCGRA.cgra__0.tile__5.ctrl_mem.reg_file.regs[i]) )
+        $display("cgra0tile5ctrl %d %d", i, MultiCGRA.cgra__0.tile__5.ctrl_mem.reg_file.regs[i]);
+    end
+    $display("##########################");
+    for (int i = 0; i < 512; i++)
+    begin
+      if ( !$isunknown(MultiCGRA.cgra__0.tile__8.ctrl_mem.reg_file.regs[i]) )
+        $display("cgra0tile8ctrl %d %d", i, MultiCGRA.cgra__0.tile__8.ctrl_mem.reg_file.regs[i]);
+    end
+    $display("##########################");
+    for (int i = 0; i < 512; i++)
+    begin
+      if ( !$isunknown(MultiCGRA.cgra__0.tile__9.ctrl_mem.reg_file.regs[i]) )
+        $display("cgra0tile9ctrl %d %d", i, MultiCGRA.cgra__0.tile__9.ctrl_mem.reg_file.regs[i]);
+    end
+
+    $display("*************cgra0 data mem 0*************");
+    for (int i = 0; i < 16; i++)
+    begin
+      if ( !$isunknown(MultiCGRA.cgra__0.data_mem.memory_wrapper__0.memory.regs[i]) )
+        $display("cgra0regfile0 (addr 0 init) %d %d (%d)", i, MultiCGRA.cgra__0.data_mem.memory_wrapper__0.memory.regs[i].payload, MultiCGRA.cgra__0.data_mem.memory_wrapper__0.memory.regs[i]);
+    end
+    $display("#############cgra0 data mem 1#############");
+    for (int i = 0; i < 16; i++)
+    begin
+      if ( !$isunknown(MultiCGRA.cgra__0.data_mem.memory_wrapper__1.memory.regs[i]) )
+        $display("cgra0regfile1 (addr 0 init) %d %d", i, MultiCGRA.cgra__0.data_mem.memory_wrapper__1.memory.regs[i]);
+    end
+
+    $finish();
+  end
+
+  initial
+    forever
+    begin
+      #5
+      clk = ~clk;
+    end
+
+  always @ (posedge clk or negedge clk)
+  begin
+    #1
+
+    if ( send_to_cpu_pkt__val && ( ('d2212 * 'd2 + 'd3) == send_to_cpu_pkt__msg.payload.data.payload ) )
+    begin
+      PASS         = 'd1;
+      pass_time_of = $time;
+    end
+  end
+
+  /*initial
+  begin
+    $dumpfile("./output.vcd");
+    $dumpvars (0, cgra_test);
+  end*/
+  // The Verilator test fails on these $fsdb* functions; if pragmas do not work, add --bbox-sys to Verilator cmd.
+`ifndef VERILATOR
+  initial
+  begin
+    $fsdbDumpfile("./output.fsdb");
+    $fsdbDumpvars ("+all", "cgra_test");
+    $fsdbDumpMDA;
+    $fsdbDumpSVA;
+  end
+`endif
+
+
+endmodule
+
diff --git a/multi_cgra/test/sv_test/header_fir_vector_global_reduce.sv b/multi_cgra/test/sv_test/header_fir_vector_global_reduce.sv
new file mode 100644
index 00000000..6a0e3247
--- /dev/null
+++ b/multi_cgra/test/sv_test/header_fir_vector_global_reduce.sv
@@ -0,0 +1,358 @@
+function automatic IntraCgraPacket_4_2x2_16_8_2_CgraPayload__d294fd7ecd3c5b69 make_intra_cgra_pkt
+(
+  input logic [4:0] src,
+  input logic [4:0] dst,
+  input logic [4:0] cmd,
+  input logic [31:0] data_payload,
+  input logic       data_predicate,
+  input logic [6:0] data_addr,
+  input logic [6:0] ctrl_operation
+);
+  IntraCgraPacket_4_2x2_16_8_2_CgraPayload__d294fd7ecd3c5b69 pkt;
+  integer file_handle;
+
+  pkt.src         = src;
+  pkt.dst         = dst;
+  pkt.src_cgra_id = 2'd0;
+  pkt.dst_cgra_id = 2'd0;
+  pkt.src_cgra_x  = 1'b0;
+  pkt.src_cgra_y  = 1'b0;
+  pkt.dst_cgra_x  = 1'b0;
+  pkt.dst_cgra_y  = 1'b0;
+  pkt.opaque      = 8'd0;
+  pkt.vc_id       = 1'b0;
+
+
+  pkt.payload.cmd              = cmd;
+  pkt.payload.data_addr        = data_addr;
+  pkt.payload.ctrl_addr                = 4'd0;
+
+  pkt.payload.data.payload     = data_payload;
+  pkt.payload.data.predicate   = data_predicate;
+  pkt.payload.data.bypass      = 1'b0;
+  pkt.payload.data.delay       = 1'b0;
+
+
+  pkt.payload.ctrl.operation   = ctrl_operation;
+  pkt.payload.ctrl.fu_in               = '{default: 3'd0};
+  pkt.payload.ctrl.routing_xbar_outport = '{default: 3'd0};
+  pkt.payload.ctrl.fu_xbar_outport     = '{default: 2'd0};
+  pkt.payload.ctrl.vector_factor_power = 3'd0;
+  pkt.payload.ctrl.is_last_ctrl        = 1'b0;
+  pkt.payload.ctrl.write_reg_from      = '{default: 2'd0};
+  pkt.payload.ctrl.write_reg_idx       = '{default: 4'd0};
+  pkt.payload.ctrl.read_reg_from       = '{default: 1'd0};
+  pkt.payload.ctrl.read_reg_idx        = '{default: 4'd0};
+
+/*
+111103b7 lui x7
+00138393 ADDI x7
+01039393 slli x7, x7, 16
+01039393 slli x7, x7, 16
+lui 31
+addi 31
+ADD 7 7 31
+0070b023 sd x7, 0(x1)
+
+22220437 lui x8
+addi x8
+01041413 slli x8, x8, 16
+01041413 slli x8, x8, 16
+lui 31
+addi 31
+ADD 8 8 31
+0080b423 sd x8, 8(x1)
+
+33330537 lui x10
+ADDI x10
+01051513 slli x10, x10, 16
+01051513 slli x10, x10, 16
+lui 31
+addi 31
+ADD 10 10 31
+00a0b823 sd x10, 16(x1)
+
+01808093 Advance x1 += 24 (h1018)
+*/
+
+  file_handle = $fopen("hexcode.txt", "a");
+  //$fdisplay( file_handle, "%h", logic_pkt(pkt)[63:0] );
+  $fdisplay( file_handle, "%h3b7",   (logic_pkt(pkt)[63:44] + logic_pkt(pkt)[43]) );
+  $fdisplay( file_handle, "%h38393", (logic_pkt(pkt)[43:32] + logic_pkt(pkt)[31]) );
+  $fdisplay( file_handle, "01039393" );
+  $fdisplay( file_handle, "01039393" );
+  $fdisplay( file_handle, "%hfb7",   (logic_pkt(pkt)[31:12] + logic_pkt(pkt)[11]) );
+  $fdisplay( file_handle, "%hf8f93",  logic_pkt(pkt)[11:0] );
+  $fdisplay( file_handle, "01f383b3" );
+  $fdisplay( file_handle, "0070b023" );
+  //$fdisplay( file_handle, "%h", logic_pkt(pkt)[127:64] );
+  $fdisplay( file_handle, "%h437",   (logic_pkt(pkt)[127:108] + logic_pkt(pkt)[107]) );
+  $fdisplay( file_handle, "%h40413", (logic_pkt(pkt)[107:96]  + logic_pkt(pkt)[95]) );
+  $fdisplay( file_handle, "01041413" );
+  $fdisplay( file_handle, "01041413" );
+  $fdisplay( file_handle, "%hfb7",   (logic_pkt(pkt)[95:76] + logic_pkt(pkt)[75]) );
+  $fdisplay( file_handle, "%hf8f93",  logic_pkt(pkt)[75:64] );
+  $fdisplay( file_handle, "01f40433" );
+  $fdisplay( file_handle, "0080b423" );
+  //$fdisplay( file_handle, "%h", logic_pkt(pkt)[184:128] );
+  $fdisplay( file_handle, "%h537",   ({ {7{1'b0}}, logic_pkt(pkt)[184:172] } + logic_pkt(pkt)[171])  );
+  $fdisplay( file_handle, "%h50513", (             logic_pkt(pkt)[171:160]   + logic_pkt(pkt)[159]) );
+  $fdisplay( file_handle, "01051513" );
+  $fdisplay( file_handle, "01051513" );
+  $fdisplay( file_handle, "%hfb7",   (logic_pkt(pkt)[159:140] + logic_pkt(pkt)[139]) );
+  $fdisplay( file_handle, "%hf8f93",  logic_pkt(pkt)[139:128] );
+  $fdisplay( file_handle, "01f50533" );
+  $fdisplay( file_handle, "00a0b823" );
+  // Advance x1 += 24 (h1018)
+  $fdisplay( file_handle, "01808093" );
+  $fclose(file_handle);
+
+  return pkt;
+endfunction
+
+function automatic IntraCgraPacket_4_2x2_16_8_2_CgraPayload__d294fd7ecd3c5b69 make_intra_cgra_config_pkt
+(
+  input logic [4:0] src,
+  input logic [4:0] dst,
+  input logic [4:0] cmd,
+  input logic [6:0] operation,
+  input logic [3:0][2:0] fu_in_code,
+  input logic [7:0][2:0] routing_xbar_outport,
+  input logic [7:0][1:0] fu_xbar_outport,
+  input logic [3:0][1:0] write_reg_from,
+  input logic [3:0][0:0] read_reg_from,
+  input logic [3:0][3:0] write_reg_idx,
+  input logic [3:0][3:0] read_reg_idx,
+  input logic [3:0] ctrl_addr
+);
+  IntraCgraPacket_4_2x2_16_8_2_CgraPayload__d294fd7ecd3c5b69 pkt;
+  integer file_handle;
+
+  pkt.src         = src;
+  pkt.dst         = dst;
+  pkt.src_cgra_id = 2'd0;
+  pkt.dst_cgra_id = 2'd0;
+  pkt.src_cgra_x  = 1'b0;
+  pkt.src_cgra_y  = 1'b0;
+  pkt.dst_cgra_x  = 1'b0;
+  pkt.dst_cgra_y  = 1'b0;
+  pkt.opaque      = 8'd0;
+  pkt.vc_id       = 1'b0;
+
+  pkt.payload.cmd = cmd; // CMD_CONFIG
+  pkt.payload.data = '0; // Not used for config packets
+  pkt.payload.data_addr = 7'd0;
+  pkt.payload.ctrl_addr = ctrl_addr;
+
+  pkt.payload.ctrl.operation           = operation;
+  pkt.payload.ctrl.fu_in               = fu_in_code;
+  pkt.payload.ctrl.routing_xbar_outport = routing_xbar_outport;
+  pkt.payload.ctrl.fu_xbar_outport     = fu_xbar_outport;
+  pkt.payload.ctrl.vector_factor_power = 3'd0;
+  pkt.payload.ctrl.is_last_ctrl        = 1'b0;
+  pkt.payload.ctrl.write_reg_from      = write_reg_from;
+  pkt.payload.ctrl.write_reg_idx       = write_reg_idx;
+  pkt.payload.ctrl.read_reg_from       = read_reg_from;
+  pkt.payload.ctrl.read_reg_idx        = read_reg_idx;
+
+  file_handle = $fopen("hexcode.txt", "a");
+  //$fdisplay( file_handle, "%h", logic_pkt(pkt)[63:0] );
+  $fdisplay( file_handle, "%h3b7",   (logic_pkt(pkt)[63:44] + logic_pkt(pkt)[43]) );
+  $fdisplay( file_handle, "%h38393", (logic_pkt(pkt)[43:32] + logic_pkt(pkt)[31]) );
+  $fdisplay( file_handle, "01039393" );
+  $fdisplay( file_handle, "01039393" );
+  $fdisplay( file_handle, "%hfb7",   (logic_pkt(pkt)[31:12] + logic_pkt(pkt)[11]) );
+  $fdisplay( file_handle, "%hf8f93",  logic_pkt(pkt)[11:0] );
+  $fdisplay( file_handle, "01f383b3" );
+  $fdisplay( file_handle, "0070b023" );
+  //$fdisplay( file_handle, "%h", logic_pkt(pkt)[127:64] );
+  $fdisplay( file_handle, "%h437",   (logic_pkt(pkt)[127:108] + logic_pkt(pkt)[107]) );
+  $fdisplay( file_handle, "%h40413", (logic_pkt(pkt)[107:96]  + logic_pkt(pkt)[95]) );
+  $fdisplay( file_handle, "01041413" );
+  $fdisplay( file_handle, "01041413" );
+  $fdisplay( file_handle, "%hfb7",   (logic_pkt(pkt)[95:76] + logic_pkt(pkt)[75]) );
+  $fdisplay( file_handle, "%hf8f93",  logic_pkt(pkt)[75:64] );
+  $fdisplay( file_handle, "01f40433" );
+  $fdisplay( file_handle, "0080b423" );
+  //$fdisplay( file_handle, "%h", logic_pkt(pkt)[184:128] );
+  $fdisplay( file_handle, "%h537",   ({ {7{1'b0}}, logic_pkt(pkt)[184:172] } + logic_pkt(pkt)[171])  );
+  $fdisplay( file_handle, "%h50513", (             logic_pkt(pkt)[171:160]   + logic_pkt(pkt)[159]) );
+  $fdisplay( file_handle, "01051513" );
+  $fdisplay( file_handle, "01051513" );
+  $fdisplay( file_handle, "%hfb7",   (logic_pkt(pkt)[159:140] + logic_pkt(pkt)[139]) );
+  $fdisplay( file_handle, "%hf8f93",  logic_pkt(pkt)[139:128] );
+  $fdisplay( file_handle, "01f50533" );
+  $fdisplay( file_handle, "00a0b823" );
+  // Advance x1 += 24 (h1018)
+  $fdisplay( file_handle, "01808093" );
+  $fclose(file_handle);
+
+  return pkt;
+endfunction
+
+function automatic IntraCgraPacket_4_2x2_16_8_2_CgraPayload__d294fd7ecd3c5b69 make_intra_cgra_config_pkt_w_data
+(
+  input logic [4:0] src,
+  input logic [4:0] dst,
+  input logic [4:0] cmd,
+  input logic [6:0] operation,
+  input logic [3:0][2:0] fu_in_code,
+  input logic [7:0][2:0] routing_xbar_outport,
+  input logic [7:0][1:0] fu_xbar_outport,
+  input logic [3:0][1:0] write_reg_from,
+  input logic [3:0][0:0] read_reg_from,
+  input logic [3:0][3:0] write_reg_idx,
+  input logic [3:0][3:0] read_reg_idx,
+  input logic [3:0] ctrl_addr,
+  input logic [31:0] data,
+  input logic [0:0] pred,
+  input logic [6:0] data_addr
+);
+  IntraCgraPacket_4_2x2_16_8_2_CgraPayload__d294fd7ecd3c5b69 pkt;
+  integer file_handle;
+
+  pkt.src         = src;
+  pkt.dst         = dst;
+  pkt.src_cgra_id = 2'd0;
+  pkt.dst_cgra_id = 2'd0;
+  pkt.src_cgra_x  = 1'b0;
+  pkt.src_cgra_y  = 1'b0;
+  pkt.dst_cgra_x  = 1'b0;
+  pkt.dst_cgra_y  = 1'b0;
+  pkt.opaque      = 8'd0;
+  pkt.vc_id       = 1'b0;
+
+  pkt.payload.cmd = cmd;
+  pkt.payload.data_addr = data_addr;
+  pkt.payload.ctrl_addr = ctrl_addr;
+
+  pkt.payload.ctrl.operation           = operation;
+  pkt.payload.ctrl.fu_in               = fu_in_code;
+  pkt.payload.ctrl.routing_xbar_outport = routing_xbar_outport;
+  pkt.payload.ctrl.fu_xbar_outport     = fu_xbar_outport;
+  pkt.payload.ctrl.vector_factor_power = 3'd0;
+  pkt.payload.ctrl.is_last_ctrl        = 1'b0;
+  pkt.payload.ctrl.write_reg_from      = write_reg_from;
+  pkt.payload.ctrl.write_reg_idx       = write_reg_idx;
+  pkt.payload.ctrl.read_reg_from       = read_reg_from;
+  pkt.payload.ctrl.read_reg_idx        = read_reg_idx;
+
+  pkt.payload.data.payload   = data;
+  pkt.payload.data.predicate = pred;
+  pkt.payload.data.bypass    = 1'b0;
+  pkt.payload.data.delay     = 1'b0;
+
+  file_handle = $fopen("hexcode.txt", "a");
+  //$fdisplay( file_handle, "%h", logic_pkt(pkt)[63:0] );
+  $fdisplay( file_handle, "%h3b7",   (logic_pkt(pkt)[63:44] + logic_pkt(pkt)[43]) );
+  $fdisplay( file_handle, "%h38393", (logic_pkt(pkt)[43:32] + logic_pkt(pkt)[31]) );
+  $fdisplay( file_handle, "01039393" );
+  $fdisplay( file_handle, "01039393" );
+  $fdisplay( file_handle, "%hfb7",   (logic_pkt(pkt)[31:12] + logic_pkt(pkt)[11]) );
+  $fdisplay( file_handle, "%hf8f93",  logic_pkt(pkt)[11:0] );
+  $fdisplay( file_handle, "01f383b3" );
+  $fdisplay( file_handle, "0070b023" );
+  //$fdisplay( file_handle, "%h", logic_pkt(pkt)[127:64] );
+  $fdisplay( file_handle, "%h437",   (logic_pkt(pkt)[127:108] + logic_pkt(pkt)[107]) );
+  $fdisplay( file_handle, "%h40413", (logic_pkt(pkt)[107:96]  + logic_pkt(pkt)[95]) );
+  $fdisplay( file_handle, "01041413" );
+  $fdisplay( file_handle, "01041413" );
+  $fdisplay( file_handle, "%hfb7",   (logic_pkt(pkt)[95:76] + logic_pkt(pkt)[75]) );
+  $fdisplay( file_handle, "%hf8f93",  logic_pkt(pkt)[75:64] );
+  $fdisplay( file_handle, "01f40433" );
+  $fdisplay( file_handle, "0080b423" );
+  //$fdisplay( file_handle, "%h", logic_pkt(pkt)[184:128] );
+  $fdisplay( file_handle, "%h537",   ({ {7{1'b0}}, logic_pkt(pkt)[184:172] } + logic_pkt(pkt)[171])  );
+  $fdisplay( file_handle, "%h50513", (             logic_pkt(pkt)[171:160]   + logic_pkt(pkt)[159]) );
+  $fdisplay( file_handle, "01051513" );
+  $fdisplay( file_handle, "01051513" );
+  $fdisplay( file_handle, "%hfb7",   (logic_pkt(pkt)[159:140] + logic_pkt(pkt)[139]) );
+  $fdisplay( file_handle, "%hf8f93",  logic_pkt(pkt)[139:128] );
+  $fdisplay( file_handle, "01f50533" );
+  $fdisplay( file_handle, "00a0b823" );
+  // Advance x1 += 24 (h1018)
+  $fdisplay( file_handle, "01808093" );
+  $fclose(file_handle);
+
+  return pkt;
+endfunction
+
+function automatic logic [185-1:0] logic_pkt (IntraCgraPacket_4_2x2_16_8_2_CgraPayload__d294fd7ecd3c5b69 p);
+  logic_pkt = {
+    // Header (MSB->LSB order)
+    p.src,
+    p.dst,
+    p.src_cgra_id,
+    p.dst_cgra_id,
+    p.src_cgra_x,
+    p.src_cgra_y,
+    p.dst_cgra_x,
+    p.dst_cgra_y,
+    p.opaque,
+    p.vc_id,
+    // Payload
+    p.payload.cmd,
+    p.payload.data.payload,
+    p.payload.data.predicate,
+    p.payload.data.bypass,
+    p.payload.data.delay,
+    p.payload.data_addr,
+    p.payload.ctrl.operation,
+    p.payload.ctrl.fu_in,
+    p.payload.ctrl.routing_xbar_outport,
+    p.payload.ctrl.fu_xbar_outport,
+    p.payload.ctrl.vector_factor_power,
+    p.payload.ctrl.is_last_ctrl,
+    p.payload.ctrl.write_reg_from,
+    p.payload.ctrl.write_reg_idx,
+    p.payload.ctrl.read_reg_from,
+    p.payload.ctrl.read_reg_idx,
+    p.payload.ctrl_addr
+  };
+endfunction
+
+function automatic IntraCgraPacket_4_2x2_16_8_2_CgraPayload__d294fd7ecd3c5b69 unpack_pkt (logic [217-1:0] v);
+  IntraCgraPacket_4_2x2_16_8_2_CgraPayload__d294fd7ecd3c5b69 p;
+  // Use a running index from LSB upward for clarity
+  int i = 0;
+  // ctrl_addr (4)
+  p.payload.ctrl_addr = v[i +: 4]; i += 4;
+  // ctrl (107)
+  p.payload.ctrl.read_reg_idx = v[i +: 16]; i += 16;
+  p.payload.ctrl.read_reg_from = v[i +: 4]; i += 4;
+  p.payload.ctrl.write_reg_idx = v[i +: 16]; i += 16;
+  p.payload.ctrl.write_reg_from = v[i +: 8]; i += 8;
+  p.payload.ctrl.is_last_ctrl = v[i +: 1]; i += 1;
+  p.payload.ctrl.vector_factor_power = v[i +: 3]; i += 3;
+  p.payload.ctrl.fu_xbar_outport = v[i +: 16]; i += 16; // 8*2
+  p.payload.ctrl.routing_xbar_outport = v[i +: 24]; i += 24; // 8*3
+  p.payload.ctrl.fu_in = v[i +: 12]; i += 12; // 4*3
+  p.payload.ctrl.operation = v[i +: 7]; i += 7;
+  // data_addr (7)
+  p.payload.data_addr = v[i +: 7]; i += 7;
+  // data (67)
+  p.payload.data.delay = v[i +: 1]; i += 1;
+  p.payload.data.bypass = v[i +: 1]; i += 1;
+  p.payload.data.predicate = v[i +: 1]; i += 1;
+  p.payload.data.payload = v[i +: 64]; i += 64;
+  // cmd (5)
+  p.payload.cmd = v[i +: 5]; i += 5;
+  // header tail (27)
+  p.vc_id = v[i +: 1]; i += 1;
+  p.opaque = v[i +: 8]; i += 8;
+  p.dst_cgra_y = v[i +: 1]; i += 1;
+  p.dst_cgra_x = v[i +: 1]; i += 1;
+  p.src_cgra_y = v[i +: 1]; i += 1;
+  p.src_cgra_x = v[i +: 1]; i += 1;
+  p.dst_cgra_id = v[i +: 2]; i += 2;
+  p.src_cgra_id = v[i +: 2]; i += 2;
+  p.dst = v[i +: 5]; i += 5;
+  p.src = v[i +: 5]; i += 5;
+
+  // Consistency check.
+  if (i != 217)
+    $error("unpack index mismatch: %0d != %0d", i, 217);
+
+  return p;
+endfunction
+