337 lines
9.5 KiB
Plaintext
337 lines
9.5 KiB
Plaintext
2000-07-02 Mark RISON <mrison@hotmail.com>
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* Version 1.3.
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* Improve man page (including portability fixes by Tim).
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* From Matthew, Tim and Russell: compiler warning avoidance.
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2000-06-25 Mark RISON <mrison@hotmail.com>
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* Version 1.3b4.
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* Allow benign EQU redefinition.
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* Cut down on warnings in pass 1.
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* Find and (hopefully!) fix nasty bug in error recovery in arglists.
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* Allow JP HL/IX/IY syntax. A warning is issued.
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* Revamp man page.
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* From Tim Mann: resolve r/r conflict for parentheses in expressions.
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2000-06-18 Mark RISON <mrison@hotmail.com>
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* Version 1.3b3.
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* BeOS now supported (just treat as a Un*x variant!).
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* Upgrade to bison 1.28 so alloca () no longer a problem.
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* Document the operator zoo.
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* Allow normal parentheses in expressions.
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(FIXME: is there a way to tell bison the r/r conflict is OK?)
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* From Tim Mann: sort out operator precedence; make it C-like.
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2000-05-25 Mark RISON <mrison@hotmail.com>
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* Version 1.3b2.
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* Fix error handling fix (with Tim's help!).
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* From Tim Mann: add relationals and synonyms for NOT, MOD, SHL, SHR.
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2000-03-18 Mark RISON <mrison@hotmail.com>
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* Version 1.3b1.
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* Fix error handling.
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* Allow a leading colon or no special character at all
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to introduce a label.
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* Allow $ and # to introduce hex constants.
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* Allow COND and ENDC as synoyms for IF and ENDIF.
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* More ANSI C pedantry.
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* From Tim Mann: remove the nasty and buggy hack to allow AND,
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OR and XOR to be used as binary operators and do it properly.
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* From Tim Mann: fix bug which prevented & from being used as
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a binary operator when it was allowed to introduce a hex constant.
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* From Matthew Phillips: try filename as given before trying
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to add a '.z' extension.
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2000-02-27 Mark RISON <mrison@hotmail.com>
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* Version 1.2.
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* Stop trying to add an extension to INCLUDEd files
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(this stupid idea was a misfeature introduced in 1.1.1.1).
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Instead, define canonical form, which is automatically
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decanonicalised according to the local OS requirements
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(see the man page for more details).
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* Add support for RISC OS.
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* Increase the maximum number of IFs to 1024.
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* Issue warning when SLL is used.
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* Further ANSI C-ify.
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(FIXME: anyone know how to convince bison not to use alloca ()?)
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* Tweak command-line error reporting.
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* Remove legacy non-ANSI C garbage.
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* From Matthew Phillips: add support for outputting AMSDOS header.
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* From Matthew Phillips: add support for RISC OS DDE throwback.
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2000-02-11 Russell Marks <russell.marks@dtn.ntl.com>
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* zmac.1: updated man page.
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* zmac.y: changed `-O' warning output to look more like gcc
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(`foo.z:N: warning: wibble' rather than `foo.z:N: wibble
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warning').
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* zmac.y: changed to use my old getoptn() getopt clone instead of
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`real' getopt(), as I know Mark likes his portability :-) (and it
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probably wouldn't work on DOS otherwise, which even I would like
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it to...).
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* zmac.y: merged in changes (relative to 1.1) from my current
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zmac. These were:
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* zmac.y: minor changes to avoid egcs/gcc `ambiguous else'
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warnings.
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* zmac.y: changes from Chris Smith [slightly changed to fit zmac
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1.1.1.x]. `-o' now specifies output file; `-x' specifies listing
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file (`-x -' does the same as the old `-o' option); the
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undocumented `sll' opcode is now allowed; "Cannot open foo file"
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errors now give the filename; a `.z' extension is only added to
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source filename if it has no extension; args are now parsed with
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getopt().
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* Makefile: fix missing dependencies for zmac.
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1999-10-03 Mark RISON <mrison@hotmail.com>
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* Version 1.1.1.2.
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* Fix bug in nested ELSEs.
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* Pad .bin file when multiple ORGs are used.
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* `-O' option invokes optimisation suggester
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for JP, RLC/RRC/RL/RR/SLA A and LD A, 0.
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* Reinstate 0x02, 0x0a, 0x12 and 0x1a as valid 8080 opcodes.
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* Add zmac.c to .zip file (for those who don't have yacc/bison).
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* Make makefile no longer depend on GNU make implicit rules.
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1999-07-18 Mark RISON <mrison@hotmail.com>
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* Version 1.1.1.1 (nee 1.1.1).
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* Extend symbol significance from 15 to 40 chars.
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A warning is issued regarding truncated symbols.
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* Make continuous listing be the default.
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* Add ELSE to IF/ENDIF construct.
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* Allow INCLUDE filename to be delimited by " or '.
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* Allow labels to be defined using .name (as well as name:).
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* Allow ADD/SBC/ADD s syntax (implicit "A, ").
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A warning is issued.
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* Issue warning for SUB/AND/XOR/OR/CP A, s syntax (explicit "A, ").
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* Issue warning for CMP and JMP opcodes, and V and NV condition codes.
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* Catch division by zero in expressions.
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* Allow hex constants to be specified using a leading '&'.
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(FIXME: what's all this testing of nextchar () against '$' for?)
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* Add DB, DEFM and TEXT as synonyms for DEFB.
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* Add DS and RMEM as synonyms for DEFS.
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* Add DW as synonym for DEFW.
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* Add READ as synonym for INCLUDE.
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* Allow strings to be specified using " too.
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* Allow AND, OR and XOR to be used as binary operators.
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(FIXME: a bit of a nasty hack; can it be done more cleanly?)
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* Make file handing consistent for source and INCLUDE:
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for both, try to open with ".z" first, then with no extension.
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1998-12-15 Russell Marks <rus@lifeson>
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* Version 1.1.
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* Added support for --help and --version.
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* zmac.1: mentioned `title' pseudo-op.
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* Converted revision history from zmac.y into Emacs change log
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format (roughly).
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* Now outputs errors more like a C compiler (one per line,
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prefixed with filename and line-in-file), useful for `M-x compile'
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in Emacs. New `-S' option makes it show the error-causing line
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like it used to.
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* Made it output current file for error reports.
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* Added `void' to prototypes for funcs with no args.
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* Removed unnecessary `char *ctime()' and `fflush(stderr)'.
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* Made it support filenames longer than 14 chars!
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1998-02-26 Russell Marks <rus@lifeson>
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* Version 1.0 (for the sake of argument).
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* Made usage message say what the program is. :-)
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1998-02-12 Russell Marks <rus@lifeson>
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* Added verbose inline errors in listing and made the original
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terse one-letter ones available via new `-t' option.
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* Added `-c' option to produce continuous listing (no page breaks
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or page headers).
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* Corrected plurals in listing so you don't get things like "1
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symbols" any more.
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* Added `-z' option to output 8080-compatible code only - i.e., to
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flag Z80-specific ops as errors.
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1998-02-11 Russell Marks <rus@lifeson>
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* Fixed LIST-without-args segfault.
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* Allowed decimal constants to be up to 65535 (rather than up to
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32767 before; I checked and there was no reason for the previous
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exception for decimal even on systems with 16-bit ints).
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* Removed the `-d' debug option.
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* Removed the `-t' option. It did everything as normal *except*
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for not reporting errors. I can't imagine any valid reason for
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wanting that.
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* Made exit status 1 if there were errors in the assembly.
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* Fixed `equ' bug - it now detects forward refs to `equ's with
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forward refs and flags them as errors (because of course you'd
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need three passes to resolve them). The fix is pretty
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nasty-looking but it was really the only way I could see to do it.
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Some assemblers (e.g. Hisoft's GENS4) don't allow forward refs in
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`equ's at all, so count yourselves lucky! :-)
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* Changed symbol table listing so it fits in 80 columns.
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* Fixed `if' to not depend on internals of yacc parser (which
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appear to have changed, anyway).
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* Added support for normal `rst' format (0, 8, 10h, 18h...; still
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allows the previous 0, 1, 2, 3...).
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* Made default output binary (as .bin), added `-h' to get .hex.
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* ANSIfied the thing (painful!) and cleaned up a little.
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1987-02-05 Colin Kelley
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* Added 'cmp' as a synonym for 'cp', 'jmp' as a synonym for 'jp',
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and added tolerance of accumulator specification for arithmetic
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and logical instructions. (For example, 'or a,12' is now accepted,
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same as 'or 12'.)
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1987-01-18 Colin Kelley
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* Added MIO code to emulate 'mfile' using malloc()'d memory. This
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was needed to get the code to work when compiled under MSC 4.0 on
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a PC, and it's probably faster anyway.
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1986-10-02 Colin Kelley
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* Added some more typecasts to keep lint a little happier. Removed
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several unused variables. Changed most vars declared as char to
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int, since many of them were being compared with -1! I still don't
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know what's going on with est[][] being malloc'd and free'd
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everywhere...it looks pretty fishy...
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1986-09-20 Colin Kelley
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* Converted to run on a Pyramid. This meant changing yylval to be
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a %union, and then putting in the appropriate typecasts where ints
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are pointers are used interchangeably. The current version still
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probably won't run on machines where
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sizeof(int) != sizeof(char *).
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Also changed emit() to use varargs, and got rid of the old
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style = in front of yacc action code.
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1984-08-27 John Providenza
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* Added PHASE/DEPHASE commands.
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1984-05-22 John Providenza
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* Added include files ala ormac.
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1984-05-11 John Providenza
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* Added code to print unused labels out with the symbol table.
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Also sped up the macro processor by using stdio.
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1983-06-07 John Providenza
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* Fixed bug in the ADD IX,... instruction.
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1983-02-15 John Providenza
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* Fixed 'getlocal' to return better local labels. It used to crash
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after 6 invocations.
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1982-03-15 John Providenza
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* Changed maximum number of characters in a label to 15 from 7.
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Note that 'putsymtab' uses this value inside of a quoted string,
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so we use 15.
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* Added underscore as a character type in the lex table 'numpart'
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(0x5F).
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1982-03-08 John Providenza
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* Converted to run on Vax, updated syntax to conform better to the
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Zilog standard.
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1978-04-?? Bruce Norskog
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* Initial version.
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