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annotate ChangeLog @ 281:44e29b2b9705 2.4
Release 2.4.1 with a fix for parsing problem that made the assembler mostly useless
| author | lost |
|---|---|
| date | Thu, 11 Jun 2009 23:13:00 +0000 |
| parents | 436b36214e35 |
| children |
| rev | line source |
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| 148 | 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 | |
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10 [ ] general improvement |
| 148 | 11 |
| 12 Also, the software affected may follow in []. | |
| 13 | |
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14 Version 2.4.1 |
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15 |
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16 [!] Fixed inherent opcodes so that they don't give a bad operand error in |
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17 LWASM. Oops. |
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18 |
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Fixed off by one relocation offset for direct page external references
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19 Version 2.4 |
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20 |
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21 [!] Fixed off by one relocation offest for base page external references |
| 221 | 22 generated by lwasm [LWASM] |
| 23 [b] Fixed segfault in "extern" pseudo op and allowed a symbol list as the | |
| 24 operand just like "export" [LWASM] | |
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Fixed lack of error when there are extraneous characters at the end of the operand.
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25 [b] Fixed lack of error when there are extraneous characters at the end |
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26 of the operand. This did not cause incorrect code generation for correct |
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27 code but would silently generate incorrect code for some easy errors |
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Allow 8 bit immediate operands to be external references
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28 [+] 8 bit immediate operands can now be external references [LWASM] |
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29 |
| 180 | 30 Version 2.3 |
| 31 | |
| 216 | 32 [*] added support for compiling using MinGW and added portions of gnulib |
| 33 to support argp, among other things. Yah! A Windows build! | |
| 187 | 34 [+] added library search path (-L) and library specification (-l) to LWLINK |
| 35 [+] added ability to specify section base addresses on the command line to | |
| 180 | 36 LWLINK (they get prepended to the built in link script) |
| 187 | 37 [+] added ability to output a "linkmap" to lwlink (--map, -m) |
| 38 [+] added LWEX0 (LWOS simple binary) target to LWLINK | |
| 188 | 39 [+] added ability to extract files in LWAR |
| 40 [+] added ability to "replace" members in LWAR | |
| 190 | 41 [+] added support for "sym=expr" in the opcode field; this will define a |
| 42 global symbol (non-section) if it resolves to a constant | |
| 191 | 43 [+] added operator ~ as a prefix operator for a 1s complement in LWASM |
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192
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Allow exporting multiple symbols on a single directive
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44 [+] allow exporting multiple symbols (export sym,sym,sym...) |
| 216 | 45 [+] allow extern references in base page addresing mode, possibly buggy |
| 46 still (LWASM) | |
| 47 [+] handle 8 bit external references, possibly buggy still (LWLINK) | |
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Made lwlink smarter about not included unneeded (unreferenced) members of a library file
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48 [+] arranged for unused members of library files (archives) to be ignored |
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Made lwlink smarter about not included unneeded (unreferenced) members of a library file
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49 during linking to keep the final size of the binary down (LWLINK) |
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Arranged for lwasm and lwlink to remove the output file in case they fail
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50 [b] arranged for output files for lwasm/lwlink to be removed if the assembly |
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Arranged for lwasm and lwlink to remove the output file in case they fail
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51 or linking fails |
| 209 | 52 [b] fixed incorrect handling of library search path which caused only the |
| 53 last directory to ever matter | |
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54 [ ] DECB output of LWLINK now collapses contiguous output blocks into single |
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55 single blocks in the output file; this eliminates the explosion of |
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56 preambles that previously occurred |
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Make lwlink display all undefined references instead of bailing after the first one
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57 [ ] LWLINK now displays *all* undefined symbols and references instead of |
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Make lwlink display all undefined references instead of bailing after the first one
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58 bailing out after the first one |
| 180 | 59 |
| 166 | 60 Version 2.2 |
| 61 | |
| 171 | 62 [*] created LWAR to manage library/archive files |
| 166 | 63 [+] cescapes pragma to allow C-style string escapes in FCC, FCS, and FCN |
| 64 [+] .area alias for SECTION | |
| 65 [+] .globl alias for EXPORT; also accept name of symbol as operand | |
| 66 [+] various compatibility directive aliases for FCB, FDB, FQB, RMB, FCC, | |
| 67 FCS, and FCN | |
| 68 [+] accept "*" has a prefix for base page addressing mode | |
| 168 | 69 [+] sections named "bss" or ".bss" in any case are now assumed to be |
| 70 BSS sections. The "!bss" flag can be used to remove that assumption. | |
| 169 | 71 [+] ignore lines starting with # to permit C pre-processor output to be used |
| 72 as input to lwasm | |
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Added ability to use 0x and 0X as prefixes for hexadecimal numbers
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73 [+] allow "0x" and "0X" as prefixes to identify hexadecimal numbers |
| 171 | 74 [+] added support for a simple library/archive file format to LWLINK |
| 166 | 75 [b] actually show assembly errors when no list requested |
| 76 [b] pragma and --pragma now actually take multiple pragmas as documented | |
| 77 | |
| 148 | 78 Version 2.1 |
| 79 | |
| 80 [*] merged LWLINK (1.0) and LWASM to create LWTOOLS | |
| 81 [+] [LWASM] pragmas can be specified on the command line | |
| 82 [+] [LWASM] undefextern pragma added (undefined symbols treated as external) | |
| 83 [+] documentation | |
| 84 [b] [LWASM] made pragmas case insensitive | |
| 85 [b] [LWASM] made EXTERN symbols never be part of a section in symbol table | |
| 86 | |
| 87 | |
| 88 LWASM Version 2.0 | |
| 89 | |
| 90 [*] major rewrite of the entire assembler | |
| 91 [+] object file support | |
| 92 | |
| 93 | |
| 94 LWLINK Version 1.0 | |
| 95 | |
| 96 [*] initial released version |