Move exception logic out of control.sv

1 files changed, 28 insertions, 0 deletions

diff --git a/rtl/core/control/exception.sv b/rtl/core/control/exception.sv
new file mode 100644
index 0000000..9a64cd5
--- /dev/null
+++ b/rtl/core/control/exception.sv
@@ -0,0 +1,28 @@
+`include "core/uarch.sv"
+
+module core_control_exception
+(
+	input  logic clk,
+
+	input  logic undefined,
+
+	output word  vector,
+	output logic exception
+);
+
+	logic high_vectors;
+	logic[2:0] vector_offset;
+
+	assign exception = undefined; //TODO
+	assign high_vectors = 0; //TODO
+	assign vector = {{16{high_vectors}}, 11'b0, vector_offset, 2'b00};
+
+	always_comb
+		vector_offset = 3'b001; //TODO
+
+	//TODO: spsr_<mode> = cpsr
+	//TODO: actualizar modo
+	//TODO: deshabilitar IRQs/FIQs dependiendo de modo
+	//TODO: Considerar que data abort usa + 8, no + 4
+
+endmodule