Why does the sandbox example in "core/sim/rtl_sim/src-c/sandbox" require a specific program memory and data memory configuration. What should I configure if I want to change it?

-------------------------------------------------------------------------------------------
if ((`PMEM_SIZE !== 24576) || (`DMEM_SIZE !== 16384))
begin
$display(" ===============================================");
$display("| SIMULATION ERROR |");
$display("| |");
$display("| Core must be configured for: |");
$display("| - 24kB program memory |");
$display("| - 16kB data memory |");
$display(" ===============================================");
$finish;
end
-------------------------------------------------------------------------------------------