1 slice

Author: rejunity

src/1_58bit_mul.v

@@ -71,7 +71,7 @@ module systolic_array (
 
     output wire [7:0] out
 );
-    localparam SLICES = 2;
+    localparam SLICES = 1;
     localparam SLICE_BITS = $clog2(SLICES);
     localparam SLICES_MINUS_1 = SLICES - 1;
     localparam W = 1 * SLICES;
@@ -153,6 +153,6 @@ module systolic_array (
         end
     endgenerate
 
-    // assign out = out_queue[out_queue_counter] >> 8;
-    assign out = out_queue[out_queue_counter][7:0];
+    assign out = out_queue[out_queue_counter] >> 8;
+    // assign out = out_queue[out_queue_counter][7:0];
 endmodule

test/test.py

@@ -7,14 +7,14 @@
 from cocotb.triggers import ClockCycles
 from utils import *
 
-COMPUTE_SLICES = 2
+COMPUTE_SLICES = 1
 COMPUTE_BLOCK_WIDTH = 1*COMPUTE_SLICES
 COMPUTE_BLOCK_HEIGHT = 4*COMPUTE_SLICES
 
 
 def OUT(v):
-    # return v >> 8
-    return s8_to_i32(v & 255)
+    return v >> 8
+    # return s8_to_i32(v & 255)
 
 @cocotb.test()
 async def test_1(dut):