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comparison old-trunk/ChangeLog @ 339:eb230fa7d28e
Prepare for migration to hg
author | lost |
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date | Fri, 19 Mar 2010 02:54:14 +0000 |
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1 The following includes the various changes in each release of LWTOOLS. | |
2 | |
3 Each item is prefixed by a flag in []. The flags mean: | |
4 | |
5 [*] Project structure or other "meta" change | |
6 [!] critical bug fix - code generation error, etc. | |
7 [+] new feature | |
8 [-] feature removed | |
9 [b] minor bugfix | |
10 [ ] general improvement | |
11 | |
12 Also, the software affected may follow in []. | |
13 | |
14 Version 3.0 | |
15 | |
16 [*] Completely new architecture | |
17 [b] Fixed bug that caused segfault on pass 2 if bad expression [LWASM] | |
18 | |
19 Version 2.5 | |
20 | |
21 [!] Fixed error in the fix for invalid operands included in 2.4 [LWASM] | |
22 [b] Fixed bug with "include" directive operand parsing [LWASM] | |
23 [b] Fixed additional parsing errors with pseudo ops [LWASM] | |
24 [b] Fixed parsing error with various conditional nesting situations [LWASM] | |
25 [+] Added includebin directive to include the literal contents of a binary | |
26 file at the current assembly address. [LWASM] | |
27 [+] Added || and && as boolean or and boolean and respectively [LWASM] | |
28 [+] Added COPY, COPY-, IMP, EXP, TFRP, TFRM, TFRS, TFRR as alternatives to | |
29 the TFM instruction variations for compatibility with other assemblers | |
30 [LWASM] | |
31 [+] Added --6809/-9 switch to cause 6309 instructions to be rejected; also | |
32 included --6309/-3 switch to force default allow of 6309 instructions | |
33 [LWASM] | |
34 [+] ALIGN now takes an optional padding value (ALIGN align,pad) to specify | |
35 the byte value that will be used for padding if needed [LWASM] | |
36 [+] Added OS9 module target along with the OS9, MOD, and EMOD pseudo ops | |
37 to allow building OS9 modules [LWASM] | |
38 [+] Added pragma "dollarlocal"/"nodollarlocal" and "dollarnotlocal"/ | |
39 "nodollarnotlocal" to control whether $ localizes a symbol [LWASM] | |
40 [ ] Fixed a few cosmetic issues with error reporting | |
41 | |
42 Version 2.4 | |
43 | |
44 [!] Fixed off by one relocation offest for base page external references | |
45 generated by lwasm [LWASM] | |
46 [b] Fixed segfault in "extern" pseudo op and allowed a symbol list as the | |
47 operand just like "export" [LWASM] | |
48 [b] Fixed lack of error when there are extraneous characters at the end | |
49 of the operand. This did not cause incorrect code generation for correct | |
50 code but would silently generate incorrect code for some easy errors | |
51 [+] 8 bit immediate operands can now be external references [LWASM] | |
52 | |
53 Version 2.3 | |
54 | |
55 [*] added support for compiling using MinGW and added portions of gnulib | |
56 to support argp, among other things. Yah! A Windows build! | |
57 [+] added library search path (-L) and library specification (-l) to LWLINK | |
58 [+] added ability to specify section base addresses on the command line to | |
59 LWLINK (they get prepended to the built in link script) | |
60 [+] added ability to output a "linkmap" to lwlink (--map, -m) | |
61 [+] added LWEX0 (LWOS simple binary) target to LWLINK | |
62 [+] added ability to extract files in LWAR | |
63 [+] added ability to "replace" members in LWAR | |
64 [+] added support for "sym=expr" in the opcode field; this will define a | |
65 global symbol (non-section) if it resolves to a constant | |
66 [+] added operator ~ as a prefix operator for a 1s complement in LWASM | |
67 [+] allow exporting multiple symbols (export sym,sym,sym...) | |
68 [+] allow extern references in base page addresing mode, possibly buggy | |
69 still (LWASM) | |
70 [+] handle 8 bit external references, possibly buggy still (LWLINK) | |
71 [+] arranged for unused members of library files (archives) to be ignored | |
72 during linking to keep the final size of the binary down (LWLINK) | |
73 [b] arranged for output files for lwasm/lwlink to be removed if the assembly | |
74 or linking fails | |
75 [b] fixed incorrect handling of library search path which caused only the | |
76 last directory to ever matter | |
77 [ ] DECB output of LWLINK now collapses contiguous output blocks into single | |
78 single blocks in the output file; this eliminates the explosion of | |
79 preambles that previously occurred | |
80 [ ] LWLINK now displays *all* undefined symbols and references instead of | |
81 bailing out after the first one | |
82 | |
83 Version 2.2 | |
84 | |
85 [*] created LWAR to manage library/archive files | |
86 [+] cescapes pragma to allow C-style string escapes in FCC, FCS, and FCN | |
87 [+] .area alias for SECTION | |
88 [+] .globl alias for EXPORT; also accept name of symbol as operand | |
89 [+] various compatibility directive aliases for FCB, FDB, FQB, RMB, FCC, | |
90 FCS, and FCN | |
91 [+] accept "*" has a prefix for base page addressing mode | |
92 [+] sections named "bss" or ".bss" in any case are now assumed to be | |
93 BSS sections. The "!bss" flag can be used to remove that assumption. | |
94 [+] ignore lines starting with # to permit C pre-processor output to be used | |
95 as input to lwasm | |
96 [+] allow "0x" and "0X" as prefixes to identify hexadecimal numbers | |
97 [+] added support for a simple library/archive file format to LWLINK | |
98 [b] actually show assembly errors when no list requested | |
99 [b] pragma and --pragma now actually take multiple pragmas as documented | |
100 | |
101 Version 2.1 | |
102 | |
103 [*] merged LWLINK (1.0) and LWASM to create LWTOOLS | |
104 [+] [LWASM] pragmas can be specified on the command line | |
105 [+] [LWASM] undefextern pragma added (undefined symbols treated as external) | |
106 [+] documentation | |
107 [b] [LWASM] made pragmas case insensitive | |
108 [b] [LWASM] made EXTERN symbols never be part of a section in symbol table | |
109 | |
110 | |
111 LWASM Version 2.0 | |
112 | |
113 [*] major rewrite of the entire assembler | |
114 [+] object file support | |
115 | |
116 | |
117 LWLINK Version 1.0 | |
118 | |
119 [*] initial released version |