mirror of https://github.com/YosysHQ/picorv32.git
Small improvements in vivado_soc demo
This commit is contained in:
parent
072e5ca2c5
commit
0257d2cb08
|
@ -11,7 +11,8 @@ module test_soc (
|
|||
output [31:0] monitor_addr,
|
||||
output [31:0] monitor_data
|
||||
);
|
||||
parameter MEM_SIZE = 64*1024/4;
|
||||
// 4096 32bit words = 16kB memory
|
||||
parameter MEM_SIZE = 4096;
|
||||
|
||||
wire mem_valid;
|
||||
wire mem_instr;
|
||||
|
@ -50,16 +51,14 @@ module test_soc (
|
|||
assign monitor_data = mem_wstrb ? mem_wdata : mem_rdata;
|
||||
|
||||
reg [31:0] memory [0:MEM_SIZE-1];
|
||||
initial $readmemh("../firmware/firmware.hex", memory);
|
||||
initial $readmemh("firmware.hex", memory);
|
||||
|
||||
assign mem_ready = 1;
|
||||
assign out_byte = mem_wdata[7:0];
|
||||
|
||||
always @(posedge clk) begin
|
||||
out_byte_en <= 0;
|
||||
if (mem_la_read)
|
||||
mem_rdata <= memory[mem_la_addr >> 2];
|
||||
else
|
||||
mem_rdata <= memory[mem_la_addr >> 2];
|
||||
if (mem_la_write && (mem_la_addr >> 2) < MEM_SIZE) begin
|
||||
if (mem_la_wstrb[0]) memory[mem_la_addr >> 2][ 7: 0] <= mem_la_wdata[ 7: 0];
|
||||
if (mem_la_wstrb[1]) memory[mem_la_addr >> 2][15: 8] <= mem_la_wdata[15: 8];
|
||||
|
|
Loading…
Reference in New Issue