Are there any resources online that would let me do a similarly deep study myself? I'm enjoying the famous "Nand to Tetris" course, but it uses a simplified arc

Are there any resources online that would let me do a similarly deep study myself? I'm enjoying the famous "Nand to Tetris" course, but it uses a simplified architecture (no pipelining, no cache, no interrupts) and runs in an emulator instead of an FPGA.