【正文】 。 end process。 WHEN OTHERS = NULL。139。 CODE=0110000。1668。 HIGH =39。 WHEN 1101 = Tone=11010000100 。139。 CODE=1011011。1542。 HIGH =39。 WHEN 1010 = Tone=11000000110 。139。 CODE=1101101。1410。 HIGH =39。 WHEN 1000 = Tone=10110000010 。039。 CODE=1110000。1290。 HIGH =39。 WHEN 0110 = Tone=10100001010 。039。 CODE=1011011。1116。 high =39。 when 0100 = tone=10001011100 。039。 CODE=1111001。 912。 HIGH =39。 WHEN 0010 = Tone=01110010000 。039。 CODE=0110000。039。 CODE=1111110。 END。 HIGH : OUT STD_LOGIC。 ENTITY ToneTaba IS PORT ( Index : IN STD_LOGIC_VECTOR (3 DOWNTO 0) 。 2 toaba 的程序 LIBRARY IEEE。 end process。 end case。when 163=toneindex2=0000。when 161=toneindex2=0000。when 159=toneindex2=1010。when 157=toneindex2=1010。when 155=toneindex2=1010。when 153=toneindex2=1001。when 151=toneindex2=1001。when 149=toneindex2=1001。when 147=toneindex2=1100。when 145=toneindex2=1100。when 143=toneindex2=1101。when 141=toneindex2=1010。when 139=toneindex2=1100。when 137=toneindex2=1100。when 135=toneindex2=1101。when 133=toneindex2=1010。when 131=toneindex2=1100。when 129=toneindex2=1100。when 127=toneindex2=1010。when 125=toneindex2=1001。when 123=toneindex2=1100。when 121=toneindex2=1100。when 119=toneindex2=1100。when 117=toneindex2=1100。when 115=toneindex2=1010。when 113=toneindex2=1010。when 111=toneindex2=1001。when 109=toneindex2=1001。when 107=toneindex2=1100。when 105=toneindex2=1100。when 103=toneindex2=1101。when 101=toneindex2=1010。when 99=toneindex2=1100。when 97=toneindex2=1010。when 95=toneindex2=1001。when 93=toneindex2=1100。when 91=toneindex2=1100。when 89=toneindex2=1100。when 87=toneindex2=1100。when 85=toneindex2=1101。when 83=toneindex2=1001。when 81=toneindex2=1001。when 79=toneindex2=1001。when 77=toneindex2=1010。when 75=toneindex2=1100。when 73=toneindex2=1100。when 71=toneindex2=1101。when 69=toneindex2=1101。when 67=toneindex2=1101。when 65=toneindex2=1101。when 63=toneindex2=0101。when 61=toneindex2=0101。when 59=toneindex2=1001。when 57=toneindex2=1000。when 55=toneindex2=1000。when 53=toneindex2=1001。when 51=toneindex2=1000。when 49=toneindex2=1000。when 47=toneindex2=1001。when 45=toneindex2=1001。when 43=toneindex2=1010。when 41=toneindex2=1000。when 39=toneindex2=0101。when 37=toneindex2=0101。when 35=toneindex2=1000。when 33=toneindex2=1000。when 31=toneindex2=1001。when 29=toneindex2=1001。when 27=toneindex2=1000。when 25=toneindex2=1001。when 23=toneindex2=1000。when 21=toneindex2=1000。when 19=toneindex2=1010。when 17=toneindex2=1010。when 15=toneindex2=1100。when 13=toneindex2=1100。when 11=toneindex2=1000。when 9=toneindex2=1000。when 7=toneindex2=0101。when 5=toneindex2=0101。when 3=toneindex2=1000。when 1=toneindex2=1000。139。 end case。when 269=toneindex2=0110。when 267=toneindex2=0110。when 265=toneindex2=0110。when 263=toneindex2=0110。when 261=toneindex2=0110。when 259=toneindex2=0110。when 257=toneindex2=0110。when 255=toneindex2=0110。when 253=toneindex2=0111。when 251=toneindex2=0111。when 249=toneindex2=0111。when 247=toneindex2=0000。when 245=toneindex2=0000。when 243=toneindex2=0011。when 241=toneindex2=0011。when 239=toneindex2=0101。when 237=toneindex2=0101。when 235=toneindex2=0110。when 233=toneindex2=0110。when 231=toneindex2=1000。when 229=toneindex2=1001。when 227=toneindex2=1001。when 225=toneindex2=0001。when 223=toneindex2=0000。when 221=toneindex2=1000。when 219=toneindex2=1000。when 217=toneindex2=0010。when 215=toneindex2=0110。when 213=toneindex2=0110。when 211=toneindex2=0101。when 209=toneindex2=0101。when 207=toneindex2=0101。when 205=toneindex2=0101。when 203=toneindex2=0101。when 201=toneindex2=0011。when 199=toneindex2=0011。when 197=toneindex2=0011。when 195=toneindex2=0000。when 193=toneindex2=0000。when 191=toneindex2=0110。when 189=toneindex2=0110。when 187=toneindex2=0101。when 185=toneindex2=0110。when 183=toneindex2=1000。when 181=toneindex2=1001。when 179=toneindex2=1000。when 177=toneindex2=1000。when 175=toneindex2=1001。when 173=toneindex2=1001。when 171=toneindex2=1010。when 169=toneindex2=1001。when 167=toneindex2=1001。when 165=toneindex2=1001。when 163=toneindex2=0000。when 161=toneindex2=0000。when 159=toneindex2=1001。when 157=toneindex2=1001。when 155=toneindex2=1000。when 153=toneindex2=1000。when 151=toneindex2=1010。when 149=toneindex2=1001。when 147=toneindex2=1010。when 145=toneindex2=1010。when 143=toneindex2=1010。when 141=toneindex2=1010。when 139=toneindex2=1010。when 137=toneindex2=1010。when 135=toneindex2=1010。when 133=toneindex2=0110。when 131=toneindex2=0110。when 129=toneindex2=1010。when 127=toneindex2=1010。when 125=toneindex2=1010。when 123=toneindex2=1010。when 121=toneindex2=1010。when 11