Mohammad at 23:39, 8 November 2024

2024-11-08T23:39:03Z

Mohammad: Created page with "This example converts module with struct ports into flat ports. from invio import * set_preference("invio_insert_ports_with_newline", 1) add_sv_file("test.sv") ana..."

2024-10-11T22:59:26Z

Created page with "This example converts module with struct ports into flat ports. <nowiki> from invio import * set_preference("invio_insert_ports_with_newline", 1) add_sv_file("test.sv") ana..."

New page

This example converts module with struct ports into flat ports.

<nowiki>
from invio import *

set_preference("invio_insert_ports_with_newline", 1)
add_sv_file("test.sv")
analyze()
elaborate("top")

# Convert top module with struct ports into flat ports
top_module_obj = get_modules("top").first
for p in get_ports(top_module_obj):
#report_attributes(p) # for debugging purposes you can print the attributes and see what is going on
p_type = p.data_type
# Filter the user type ports
if (p_type.is_named_user_type):
# Create new ports for each memeber and add them to the module
for m in p_type.members:
dims = []
for d in m.dimensions:
dims.append( (d.left_index, d.right_index) )
# Create a port with the same attributes as struct memebers
new_port = create_port(m.base_name, p.direction, datatype_name=m.data_type_name, dimensions=dims);
# Insert them into top module
insert_into(new_port, top_module_obj)

# Delete the old struct port
delete_object(p)

# Write out the modifications
write_modified_file("test.sv", "test_mod.sv")
</nowiki>

"test.sv"
<nowiki>
typedef struct {
logic clk;
logic rst;
logic [1:0] addr;
int data;
} bus_t;

// Convert the struct port into flat ports
module top #(WIDTH = 4)(
input bus_t in_bus, // this one
output [0:WIDTH-1] d,
input [0:WIDTH-1] a
) ;

endmodule
</nowiki>

Testcase after modification, "test_mod.sv":
<nowiki>
typedef struct {
logic clk;
logic rst;
logic [1:0] addr;
int data;
} bus_t;

// Convert the struct port into flat ports
module top #(WIDTH = 4)(
output [0:WIDTH-1] d,
input [0:WIDTH-1] a,
input logic clk,
input logic rst,
input logic [1:0] addr,
input int data
) ;

endmodule
</nowiki>

@@ Line 9: / Line 9: @@
 elaborate("top")
-# Convert top module with struct ports into flat ports
+# Convert instance of the module with struct ports into flat ports
-top_module_obj = get_modules("top").first
+mod = get_modules("child").first
-for p in get_ports(top_module_obj):
+for i in get_instances(mod):
-     #report_attributes(p) # for debugging purposes you can print the attributes and see what is going on
+     for p in i.portmaps:
      p_type = p.data_type
      if (p_type.is_named_user_type):
          # Create new ports for each memeber and add them to the module
          for m in p_type.members:
              dims = []
              for d in m.dimensions:
                  dims.append( (d.left_index, d.right_index) )
              # Create a port with the same attributes as struct memebers
-             new_port = create_port(m.base_name, p.direction, datatype_name=m.data_type_name, dimensions=dims);
+             new_port = create_port(portname, p.direction, datatype_name=m.data_type_name, dimensions=dims);
-             # Insert them into top module
+             new_ports.append(new_port)
-            insert_into(new_port, top_module_obj)
          # Delete the old struct port
          delete_object(p)
 # Write out the modifications
@@ Line 42: / Line 71: @@
 } bus_t;
 module top #(WIDTH = 4)(
-    input bus_t in_bus, // this one
+    input bus_t top_in_bus,
     output [0:WIDTH-1] d,
-    input [0:WIDTH-1] a
+    output bus_t top_out_bus
 ) ;
 endmodule
@@ Line 62: / Line 103: @@
 } bus_t;
 module top #(WIDTH = 4)(
-    output [0:WIDTH-1] d,
+    input bus_t top_in_bus,
     input [0:WIDTH-1] a,
-input logic clk,
+   output [0:WIDTH-1] d,
-input logic rst,
+   output bus_t top_out_bus
-input logic [1:0] addr,
-input int data
 ) ;
 endmodule
   </nowiki>

Simple port modification - Revision history

Mohammad at 23:39, 8 November 2024

Mohammad: Created page with "This example converts module with struct ports into flat ports. from invio import * set_preference("invio_insert_ports_with_newline", 1) add_sv_file("test.sv") ana..."