GENERATE(Exponential(10,0,10))     ; lambda_input
S0
    ADVANCE 0.0001,0.00005

    QUEUE RX_FIFO                   ;   RX_FIFO
    SEIZE   UART_F_RX
    DEPART  UART_F_RX
S2
    ADVANCE 0.00001,0.000005      ;UART
    RELEASE   UART_F_RX

    TRANSFER .25, S1        ; go to TX_FIFO with lambda_transmit
    TRANSFER .75, S3        ; go to CPU queue with lambda_handle
S1
    QUEUE TX_FIFO           ; TX_FIFO
    SIEZE  UART_T_TX
    DEPART  UART_T_TX
    ADVANTCE 0.0001, 0.00005   ; TX
    RELEASE   UART_T_TX
    TERMINATE 1
S3
    QUEUE CPU_FIFO     ; CPU_queue
    SEIZE   CPU_FIFO
    DEPART  CPU_FIFO
    ADVANCE 0.0000001   ;CPU
    TRANSFER .75, S4 ; go to MEM_storage if lambda_write
    TRANSFER .25, S2 ; go to UART if lambda_transmit
S4
    QUEUE MEM_FIFO             ; MEM_storage
    SEIZE MEM_FIFO
    DEPART  MEM_FIFO
    ADVANCE 0.00001           ; MEM
    TERMINATE 1