diff options
Diffstat (limited to 'dhrystone/testbench.v')
| -rw-r--r-- | dhrystone/testbench.v | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/dhrystone/testbench.v b/dhrystone/testbench.v index a00e8f4..2d985d6 100644 --- a/dhrystone/testbench.v +++ b/dhrystone/testbench.v @@ -29,7 +29,9 @@ module testbench; picorv32 #( .BARREL_SHIFTER(1), .ENABLE_MUL(1), - .ENABLE_DIV(1) + .ENABLE_DIV(1), + .PROGADDR_RESET('h10000), + .STACKADDR('h10000) ) uut ( .clk (clk ), .resetn (resetn ), @@ -48,13 +50,16 @@ module testbench; .mem_la_wstrb(mem_la_wstrb) ); - reg [31:0] memory [0:64*1024/4-1]; + reg [7:0] memory [0:256*1024-1]; initial $readmemh("dhry.hex", memory); assign mem_ready = 1; always @(posedge clk) begin - mem_rdata <= mem_la_read ? memory[mem_la_addr >> 2] : 'bx; + mem_rdata[ 7: 0] <= mem_la_read ? memory[mem_la_addr + 0] : 'bx; + mem_rdata[15: 8] <= mem_la_read ? memory[mem_la_addr + 1] : 'bx; + mem_rdata[23:16] <= mem_la_read ? memory[mem_la_addr + 2] : 'bx; + mem_rdata[31:24] <= mem_la_read ? memory[mem_la_addr + 3] : 'bx; if (mem_la_write) begin case (mem_la_addr) 32'h1000_0000: begin @@ -64,10 +69,10 @@ module testbench; `endif end default: 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]; - if (mem_la_wstrb[2]) memory[mem_la_addr >> 2][23:16] <= mem_la_wdata[23:16]; - if (mem_la_wstrb[3]) memory[mem_la_addr >> 2][31:24] <= mem_la_wdata[31:24]; + if (mem_la_wstrb[0]) memory[mem_la_addr + 0] <= mem_la_wdata[ 7: 0]; + if (mem_la_wstrb[1]) memory[mem_la_addr + 1] <= mem_la_wdata[15: 8]; + if (mem_la_wstrb[2]) memory[mem_la_addr + 2] <= mem_la_wdata[23:16]; + if (mem_la_wstrb[3]) memory[mem_la_addr + 3] <= mem_la_wdata[31:24]; end endcase end |