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1. [vlh] 15 sep 82
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Added fix to make location relative equates correct even if branch 
optimization occurs.
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2. [vlh] 17 sep 82
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Recognizes commands in uppercase.  Added recognization of upper case 
directives which do not have the preceding '.'.
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3. [vlh] 17 sep 82
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Added recognizing of ignored directives IDNT, ORG and MASK2.
Added new directives XDEF, XREF.
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4. [vlh] 20 sep 82
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Added COMLINE and SECTION.
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5. [vlh] 21 sep 82
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Added new directive REG.
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6. [vlh] 22 sep 82
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Added new directives DCB and OFFSET.
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7. [vlh] 22 sep 82
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Recognizes branch extensions and takes the appropriate action.
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8. [vlh] 23 sep 82
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Added assembler directives ifeq, ifne, ifle, iflt, ifge, ifgt.
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9. [vlh] 23 sep 82
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Added character '$' to set of legitimate characters in a symbol.
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10. [vlh] 23 sep 82
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Added new ignored directive OPT.
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11. [vlh] 23 sep 82
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Recognizes non-opcodes starting in column 1 as labels.
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12. [vlh] 27 sep 82
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Added conditional assembler directives ifc, ifnc.
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13. [vlh] 01 oct 82
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Major reworking of expression handler.
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14. [vlh] 04 oct 82
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More revisions to expression stacks.
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15. [vlh] 26 oct 82
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Added the recognition and handling of the 'illegal' instruction.
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16. [vlh] 26 oct 82
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Added handling of the jmp suffixes.
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17. [vlh] 27 oct 82
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Fixed problem with -p flag and external variable listings.
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18. [vlh] 28 oct 82
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Added checking for legitimate command suffixes.
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19. [vlh] 28 oct 82
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Added comma as a legitimate register divisor for the REG directive.
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20. [vlh] 28 oct 82
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Fixed second pass error/instr len problem 
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21. [vlh] 01 nov 82
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Added checking for invalid bit ranges.
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22. [vlh] 02 nov 82
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Added proper 2nd pass handling of the '*' symbol (avoid turning jsr to bra).
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23. [vlh] 04 nov 82
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Fixed first pass guess if operand is (rx,rx) instead of d(rx,rx).
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24. [vlh] 05 nov 82
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Check for appropriate range of 16-bit immediate date.
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25. [vlh] 05 nov 82
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Operand type check for shift/bit manipulation.
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26. [vlh] 05 nov 82
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Turn and/or/eor #xxx,sr/ccr into the corresponding immediate instruction.
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27. [vlh] 10 nov 82
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Generate an error when an illegal pc relative ea is specified.
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28. [vlh] 21 dec 82
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Ignore PAGE and TTL macros.
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29. [vlh] 7 jan 83
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Generate an error on ".bss\n.dc.b 1\n".
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30. [vlh] 19 jan 83
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Generate an error on "move ccr,??".
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31. [bea] 09 mar 83
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Fixed problem of )* in expression.
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32. [vlh] 16 mar 83
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\&.ds should be allowed inside .offset
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33. [vlh] 18 apr 83, version 4.1
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Made it portable to vaxens via the use of #define's.
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34. [vlh] 19 jul 83
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Added the '-a' flag, made '-L' the default.
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35. [vlh] 25 jul 83
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Forced local symbols to be put into the symbol table even if non-unique.	
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36. [vlh] 03 aug 83
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Made changes to as68init required for use with the 68010.  Added 
the new opcodes for movec, moves and rtd, and the new control registers
sfc, dfc and vsr.
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37. [vlh] 04 aug 83
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Added a new routine opf13 to handle the opcodes movec and moves.  Added the
new code to opf9 to handle rtd.
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38. [vlh] 07 sep 83
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Made rpterr increment the number of errors which had occured in order to
force endit to return a bad status.
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