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`include "core/cp15/map.sv"
`include "core/mmu/format.sv"
`include "core/uarch.sv"
module core_cp15_ttbr
(
input logic clk,
rst_n,
input logic load,
transfer,
input word write,
output word read,
output mmu_base mmu_ttbr
);
logic s, c;
cp15_ttbr read_ttbr, write_ttbr;
logic[1:0] rgn;
assign read = read_ttbr;
assign write_ttbr = write;
assign read_ttbr.s = s;
assign read_ttbr.c = c;
assign read_ttbr.sbz = 9'd0;
assign read_ttbr.rgn = rgn;
assign read_ttbr.imp = 0;
assign read_ttbr.base = mmu_ttbr;
always @(posedge clk or negedge rst_n)
if(!rst_n) begin
s <= 0;
c <= 0;
rgn <= 0;
mmu_ttbr <= 0;
end else if(transfer && !load) begin
s <= write_ttbr.s;
c <= write_ttbr.c;
rgn <= write_ttbr.rgn;
mmu_ttbr <= write_ttbr.base;
end
endmodule
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