speed_shift_next[15:0] speed_shift_next[15:0] HEXRADIX speed_shift_reg[15:0] speed_shift_reg[15:0] HEXRADIX throttle_count_6502[5:0] throttle_count_6502[5:0] enable_179 enable_179 cpu_enable_out cpu_enable_out sdram_request sdram_request sdram_request_complete sdram_request_complete sdram_read_enable sdram_read_enable sdram_write_enable sdram_write_enable