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Change addr_decode test to use new io locations

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Instead of whatever was there before, the new io locations are ram, rom,
and the hex digits.
This commit is contained in:
Byron Lathi
2022-03-12 19:25:34 -06:00
parent 08af30e823
commit ca4288df66
1 changed files with 8 additions and 3 deletions
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11
hw/fpga/hvl/cs_testbench.sv
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@@ -7,7 +7,9 @@ timeprecision 1ns;
logic [15:0] addr; logic [15:0] addr;
logic ram_cs; logic ram_cs;
logic rom_cs; logic rom_cs;
logic io_cs; logic hex_cs;
int cs_count = ram_cs + rom_cs + hex_cs;
addr_decode dut(.*); addr_decode dut(.*);
@@ -16,13 +18,16 @@ initial begin : TEST_VECTORS
for (int i = 0; i < 2**16; i++) begin for (int i = 0; i < 2**16; i++) begin
addr <= i; addr <= i;
#1 #1
assert(cs_count < 2)
else
$error("Multiple chip selects present!");
if (i < 16'h7ff0) begin if (i < 16'h7ff0) begin
assert(ram_cs == '1) assert(ram_cs == '1)
else else
$error("Bad CS! addr=%4x should have ram_cs!", addr); $error("Bad CS! addr=%4x should have ram_cs!", addr);
end end
if (i >= 16'h7ff0 && i < 16'h8000) begin if (i >= 16'h7ff0 && i < 16'h7ff2) begin
assert(io_cs == '1) assert(hex_cs == '1)
else else
$error("Bad CS! addr=%4x should have io_cs!", addr); $error("Bad CS! addr=%4x should have io_cs!", addr);
end end