update 6800 nodenames: ordering, comments, minor corrections
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79d0c4c445
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c300e6ad01
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@ -26,7 +26,8 @@ vcc: 31, // pads: power
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phi1: 1507, // pads: phase 1 clock input
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phi2: 1511, // pads: phase 2 clock input
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reset: 1461, // pads: reset
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db0: 686, // pads: data bus
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db0: 686, // pads: data bus (should really be called d)
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db1: 683,
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db2: 677,
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db3: 676,
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@ -34,7 +35,8 @@ db4: 669,
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db5: 670,
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db6: 664,
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db7: 691,
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ab0: 1854, // pads: address bus
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ab0: 1854, // pads: address bus (should really be called a)
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ab1: 1857,
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ab2: 1855,
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ab3: 1858,
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@ -50,6 +52,7 @@ ab12: 1948,
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ab13: 1946,
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ab14: 1949,
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ab15: 1947,
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irq: 1496, // input pads: interrupt request (active low)
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nmi: 1501, // pads: non maskable interrupt (active low)
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dbe: 1456, // pads: data bus enable
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@ -60,8 +63,206 @@ vma: 1971, // pads: valid memory address
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ba: 1964, // pads: bus available
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//
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// internal state: Instruction Register
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ir0: 1301,
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// major internal busses
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idb0: 610, // internal databus (should be called db)
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idb1: 1593,
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idb2: 387,
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idb3: 386,
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idb4: 311,
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idb5: 310,
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idb6: 393,
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idb7: 1651,
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abh0: 267, // internal bus: address bus high
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abh1: 258,
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abh2: 266,
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abh3: 257,
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abh4: 265,
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abh5: 256,
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abh6: 259,
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abh7: 255,
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abl0: 1670, // internal bus: address bus low
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abl1: 1671,
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abl2: 1653,
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abl3: 1667,
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abl4: 1655,
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abl5: 1657,
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abl6: 1656,
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abl7: 1658,
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ablx0: 1683, // internal bus: extension of abl bus
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ablx1: 1682,
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ablx2: 1689,
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ablx3: 1687,
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ablx4: 1694,
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ablx5: 1693,
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ablx6: 1698,
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ablx7: 1697,
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i0: 1271, // pla word lines
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i1: 1269,
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i2: 1268,
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i3: 1267,
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i4: 1265,
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i5: 1264,
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i6: 1263,
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i7: 1261,
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// programmer-visible state
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flagc: 1160, // status word flags
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flagh: 785,
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flagi: 1007,
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flagn: 1005,
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flagv: 1124,
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flagz: 1026,
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acca0: 1934, // a register: accumulator a
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acca1: 1688,
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acca2: 1700,
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acca3: 1699,
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acca4: 1701,
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acca5: 1702,
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acca6: 1703,
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acca7: 1784,
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accb0: 1919, // b register: accumulator b
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accb1: 1927,
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accb2: 1921,
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accb3: 1929,
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accb4: 1923,
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accb5: 1931,
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accb6: 1925,
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accb7: 1933,
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ixh0: 1910, // index register high
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ixh1: 1914,
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ixh2: 1911,
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ixh3: 1915,
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ixh4: 1912,
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ixh5: 1916,
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ixh6: 1913,
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ixh7: 1917,
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ixl0: 1918, // index register low
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ixl1: 1926,
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ixl2: 1920,
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ixl3: 1928,
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ixl4: 1922,
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ixl5: 1930,
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ixl6: 1924,
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ixl7: 1932,
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pch0: 1878, // program counter high register
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pch1: 1882,
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pch2: 1879,
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pch3: 1883,
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pch4: 1880,
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pch5: 1884,
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pch6: 1881,
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pch7: 1885,
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pcl0: 1877, // program counter low register
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pcl1: 1873,
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pcl2: 1876,
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pcl3: 1872,
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pcl4: 1875,
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pcl5: 1871,
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pcl6: 1874,
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pcl7: 1870,
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sph0: 1909, // stack pointer high register
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sph1: 1908,
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sph2: 1907,
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sph3: 1906,
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sph4: 1905,
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sph5: 1904,
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sph6: 1903,
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sph7: 1902,
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spl0: 1894, // stack pointer low register
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spl1: 1898,
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spl2: 1895,
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spl3: 1899,
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spl4: 1896,
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spl5: 1900,
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spl6: 1897,
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spl7: 1901,
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// datapath state not visible to the programmer
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tmp0: 1893, // non-visible temporary register
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tmp1: 1892,
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tmp2: 1891,
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tmp3: 1890,
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tmp4: 1889,
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tmp5: 1888,
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tmp6: 1887,
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tmp7: 1886,
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sum0: 644, // alu output (phi2-latched)
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sum1: 643,
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sum2: 642,
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sum3: 641,
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sum4: 640,
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sum5: 639,
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sum6: 638,
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sum7: 412,
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dbi0: 608, // data bus input register
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dbi1: 599,
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dbi2: 598,
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dbi3: 400,
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dbi4: 405,
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dbi5: 395,
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dbi6: 389,
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dbi7: 650,
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dbo0: 609, // data bus output latch
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dbo1: 602,
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dbo2: 601,
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dbo3: 402,
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dbo4: 406,
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dbo5: 397,
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dbo6: 390,
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dbo7: 649,
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inch0: 198, // incrementer high output port
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inch1: 199,
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inch2: 200,
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inch3: 201,
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inch4: 202,
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inch5: 203,
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inch6: 204,
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inch7: 205,
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incl0: 154, // incrementer low output port
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incl1: 143,
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incl2: 144,
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incl3: 147,
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incl4: 148,
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incl5: 151,
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incl6: 152,
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incl7: 156,
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obl0: 27, // output buffer low (address bus low output latch)
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obl1: 30,
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obl2: 28,
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obl3: 32,
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obl4: 29,
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obl5: 33,
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obl6: 1073,
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obl7: 35,
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"#obh0": 1071, // output buffer high (address bus high output latch))
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"#obh1": 819,
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"#obh2": 811,
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"#obh3": 813,
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"#obh4": 817,
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"#obh5": 809,
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"#obh6": 815,
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"#obh7": 574,
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// other internal state
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ir0: 1301, // Instruction Register
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ir1: 1285,
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ir2: 1286,
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ir3: 1287,
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@ -70,9 +271,6 @@ ir5: 1289,
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ir6: 1274,
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ir7: 1277,
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// internal control signals
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sync: 1528, // aka #decode_0
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// timing state signals
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Ts: 1309,
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Tf: 849, // aka fetch
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@ -102,47 +300,12 @@ Tg7: 1081,
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Tg8: 891,
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Tr8: 697,
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// many other internal busses registers and signals
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abh0: 267,
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abh1: 258,
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abh2: 266,
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abh3: 257,
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abh4: 265,
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abh5: 256,
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abh6: 259,
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abh7: 255,
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ablx0: 1683, // extension of abl bus
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ablx1: 1682,
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ablx2: 1689,
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ablx3: 1687,
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ablx4: 1694,
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ablx5: 1693,
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ablx6: 1698,
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ablx7: 1697,
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abl0: 1670,
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abl1: 1671,
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abl2: 1653,
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abl3: 1667,
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abl4: 1655,
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abl5: 1657,
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abl6: 1656,
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abl7: 1658,
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acca0: 1934,
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acca1: 1688,
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acca2: 1700,
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acca3: 1699,
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acca4: 1701,
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acca5: 1702,
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acca6: 1703,
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acca7: 1784,
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accb0: 1919,
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accb1: 1927,
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accb2: 1921,
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accb3: 1929,
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accb4: 1923,
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accb5: 1931,
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accb6: 1925,
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accb7: 1933,
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// other internal busses registers and signals
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// internal control signals
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sync: 1528, // aka #decode_0
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// ALU signals
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adda0: 1680,
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adda1: 1681,
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adda2: 1685,
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@ -183,142 +346,15 @@ addp4: 548,
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addp5: 550,
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addp6: 541,
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addp7: 543,
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idb0: 610,
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idb1: 1593,
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idb2: 387,
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idb3: 386,
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idb4: 311,
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idb5: 310,
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idb6: 393,
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idb7: 1651,
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dbi0: 608,
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dbi1: 599,
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dbi2: 598,
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dbi3: 400,
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dbi4: 405,
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dbi5: 395,
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dbi6: 389,
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dbi7: 650,
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dbo0: 609,
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dbo1: 602,
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dbo2: 601,
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dbo3: 402,
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dbo4: 406,
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dbo5: 397,
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dbo6: 390,
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dbo7: 649,
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decode: 1225,
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enrwa: 1318,
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fetch: 849, // aka Tf
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flagc: 1160,
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flagh: 785,
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flagi: 1007,
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flagn: 1005,
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flagv: 1124,
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flagz: 1026,
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i0: 1271, // pla word lines
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i1: 1269,
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i2: 1268,
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i3: 1267,
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i4: 1265,
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i5: 1264,
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i6: 1263,
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i7: 1261,
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inch0: 198,
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inch1: 199,
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inch2: 200,
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inch3: 201,
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inch4: 202,
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inch5: 203,
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inch6: 204,
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inch7: 205,
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incl0: 154,
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incl1: 143,
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incl2: 144,
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incl3: 147,
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incl4: 148,
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incl5: 151,
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incl6: 152,
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incl7: 156,
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ixh0: 1910,
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ixh1: 1914,
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ixh2: 1911,
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ixh3: 1915,
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ixh4: 1912,
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ixh5: 1916,
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ixh6: 1913,
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ixh7: 1917,
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ixl0: 1918,
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ixl1: 1926,
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ixl2: 1920,
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ixl3: 1928,
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ixl4: 1922,
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ixl5: 1930,
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ixl6: 1924,
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ixl7: 1932,
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ob: 1308,
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obl0: 27,
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obl1: 30,
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obl2: 28,
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obl3: 32,
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obl4: 29,
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obl5: 33,
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obl6: 1073,
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obl7: 35,
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pch0: 1878, // program counter high register
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pch1: 1882,
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pch2: 1879,
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pch3: 1883,
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pch4: 1880,
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pch5: 1884,
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pch6: 1881,
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pch7: 1885,
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pcl0: 1877, // program counter low register
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pcl1: 1873,
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pcl2: 1876,
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pcl3: 1872,
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pcl4: 1875,
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pcl5: 1871,
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pcl6: 1874,
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pcl7: 1870,
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ob: 1308, // output buffer (read-not-write output latch)
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resg: 1512,
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sph0: 1909, // stack pointer high register
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sph1: 1908,
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sph2: 1907,
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sph3: 1906,
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sph4: 1905,
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sph5: 1904,
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sph6: 1903,
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sph7: 1902,
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spl0: 1894, // stack pointer low register
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spl1: 1898,
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spl2: 1895,
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spl3: 1899,
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spl4: 1896,
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spl5: 1900,
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spl6: 1897,
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spl7: 1901,
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sum0: 644, // phi2-latched alu partial result
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sum1: 643,
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sum2: 642,
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sum3: 641,
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sum4: 640,
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sum5: 639,
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sum6: 638,
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sum7: 412,
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tmp0: 1893, // non-visible temporary register
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tmp1: 1892,
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tmp2: 1891,
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tmp3: 1890,
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tmp4: 1889,
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tmp5: 1888,
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tmp6: 1887,
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tmp7: 1886,
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xi0: 1303, // half-latch prior to IR
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xi1: 1291,
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xi2: 1294,
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@ -660,14 +696,6 @@ phi2_1: 478,
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"#ixl5_0": 1726,
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"#ixl6_0": 1730,
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"#ixl7_0": 1782,
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"#obh0": 1071,
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"#obh1": 819,
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"#obh2": 811,
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"#obh3": 813,
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"#obh4": 817,
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"#obh5": 809,
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"#obh6": 815,
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"#obh7": 574,
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"#pch0_0": 1760,
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"#pch1_0": 1757,
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"#pch2_0": 1761,
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@ -922,7 +950,6 @@ phi2_1: 478,
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carry: 646,
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dbe_1: 1453,
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dec: 163,
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fetch: 849,
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halted: 2,
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int: 1083,
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irq_0: 3,
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