The following patch adds a new output-only format to BFD called
"verilog hex memory dump format".
When developing a new microprocessor in verilog it is important to
develop testbenches using simulated memory containing real programs.
In order to help populate this memory, verilog provides the
$readmemh() function to load an array of verilog registers (memory)
with the contents of a file. The file must be in the verilog hex
memory dump format as defined by the IEEE verilog standard.
Adding support for this format directly into BFD greatly simplifies
the workflow:
$ moxie-elf-gcc -o hello.x hello.c
$ moxie-elf-objcopy -O verilog hello.x hello.vh
Now hello.vh can be used to populate memory modules directly in
verilog like so:
module memory();
reg [7:0] my_memory [0:64000];
initial begin
$readmemh("hello.vh", my_memory);
end
endmodule;
This new feature was tested with a Free Software verilog
implementation called Icarus Verilog.
Ok?
2009-04-22 Anthony Green <green@moxielogic.com>
* verilog.c: New file.
* Makefile.am (BFD32_LIBS): Add verilog.c.
(BFD32_LIBS_CFILES): Add verilog.c.
(verilog.lo): New build rule.
* Makefile.in: Rebuilt.
* targets.c: Add verilog support.
* bfd-in2.h: Add verilog support.