1 This file details changes since NASM 0.98p3. All the releases in this
2 file have been produced by H. Peter Anvin <hpa@zytor.com>.
5 * The documentation comment delimiter is \# not #.
6 * Allow EQU definitions to refer to external labels; reported by
8 * Re-enable support for RDOFF v1; reported by Pedro Gimeno.
9 * Updated License file per OK from Simon and Julian.
12 * Update documentation (although the instruction set reference will
13 have to wait; I don't want to hold up the 0.98 release for it.)
14 * Verified that the NASM implementation of the PEXTRW and PMOVMSKB
15 instructions is correct. The encoding differs from what the Intel
16 manuals document, but the Pentium III behaviour matches NASM, not
18 * Fix handling of implicit sizes in PSHUFW and PINSRW, reported by
20 * Resurrect the -s option, which was removed when changing the
21 diagnostic output to stdout.
24 * Fix for "DB" when NASM is running on a bigendian machine.
25 * Invoke insns.pl once for each output script, making Makefile.in
27 * Improve the Unix configure-based makefiles to make package
29 * Included an RPM .spec file for building RPM (RedHat Package Manager)
30 packages on Linux or Unix systems.
31 * Fix Makefile dependency problems.
32 * Change src/rdsrc.pl to include sectioning information in info
33 output; required for install-info to work.
34 * Updated the RDOFF distribution to version 2 from Jules; minor
35 massaging to make it compile in my environment.
36 * Split doc files that can be built by anyone with a Perl interpreter off
37 into a separate archive.
38 * "Dress rehearsal" release!
42 * Fixed opcodes with a third byte-sized immediate argument to not
43 complain if given "byte" on the immediate.
44 * Allow %undef to remove single-line macros with arguments. This
45 matches the behaviour of #undef in the C preprocessor.
46 * Allow -d, -u, -i and -p to be specified as -D, -U, -I and -P for
47 compatibility with most C compilers and preprocessors. This allows
48 Makefile options to be shared between cc and nasm, for example.
50 * Went through the list of Katmai instructions and hopefully fixed the
51 (rather few) mistakes in it.
52 * (Hopefully) fixed a number of disassembler bugs related to ambiguous
53 instructions (disambiguated by -p) and SSE instructions with REP.
54 * Fix for bug reported by Mark Junger: "call dword 0x12345678" should
55 work and may add an OSP (affected CALL, JMP, Jcc).
56 * Fix for environments when "stderr" isn't a compile-time constant.
60 * Took officially over coordination of the 0.98 release; so drop
61 the p3.x notation. Skipped p4 and p5 to avoid confusion with John
62 Fine's J4 and J5 releases.
63 * Update the documentation; however, it still doesn't include
64 documentation for the various new instructions. I somehow wonder if
65 it makes sense to have an instruction set reference in the assembler
66 manual when Intel et al have PDF versions of their manuals online.
67 * Recognize "idt" or "centaur" for the -p option to ndisasm.
68 * Changed error messages back to stderr where they belong, but add an
69 -E option to redirect them elsewhere (the DOS shell cannot redirect
71 * -M option to generate Makefile dependencies (based on code from Alex
73 * %undef preprocessor directive, and -u option, that undefines a
75 * OS/2 Makefile (Mkfiles/Makefile.os2) for Borland under OS/2; from
77 * Various minor bugfixes (reported by):
78 - Dangling %s in preproc.c (Martin Junker)
79 * THERE ARE KNOWN BUGS IN SSE AND THE OTHER KATMAI INSTRUCTIONS. I am
80 on a trip and didn't bring the Katmai instruction reference, so I
81 can't work on them right now.
82 * Updated the License file per agreement with Simon and Jules to
83 include a GPL distribution clause.
87 * (Hopefully) fixed the canned Makefiles to include the outrdf2 and
89 * Renamed changes.asm to changed.asm.
93 * Fixed a bunch of instructions that were added in 0.98p3.5 which had
94 memory operands, and the address-size prefix was missing from the
99 * Merged in changes from John S. Fine's 0.98-J5 release. John's based
100 0.98-J5 on my 0.98p3.3 release; this merges the changes.
101 * Expanded the instructions flag field to a long so we can fit more
102 flags; mark SSE (KNI) and AMD or Katmai-specific instructions as
104 * Fix the "PRIV" flag on a bunch of instructions, and create new
105 "PROT" flag for protected-mode-only instructions (orthogonal to if
106 the instruction is privileged!) and new "SMM" flag for SMM-only
108 * Added AMD-only SYSCALL and SYSRET instructions.
109 * Make SSE actually work, and add new Katmai MMX instructions.
110 * Added a -p (preferred vendor) option to ndisasm so that it can
111 distinguish e.g. Cyrix opcodes also used in SSE. For example:
113 ndisasm -p cyrix aliased.bin
114 00000000 670F514310 paddsiw mm0,[ebx+0x10]
115 00000005 670F514320 paddsiw mm0,[ebx+0x20]
116 ndisasm -p intel aliased.bin
117 00000000 670F514310 sqrtps xmm0,[ebx+0x10]
118 00000005 670F514320 sqrtps xmm0,[ebx+0x20]
119 * Added a bunch of Cyrix-specific instructions.
121 For release 0.98p3.4:
123 * Made at least an attempt to modify all the additional Makefiles (in
124 the Mkfiles directory). I can't test it, but this was the best I
126 * DOS DJGPP+"Opus Make" Makefile from John S. Fine.
127 * changes.asm changes from John S. Fine.
130 For release 0.98p3.3:
132 * Patch from Conan Brink to allow nesting of %rep directives.
133 * If we're going to allow INT01 as an alias for INT1/ICEBP (one of
134 Jules 0.98p3 changes), then we should allow INT03 as an alias for INT3
136 * Updated changes.asm to include the latest changes.
137 * Tried to clean up the <CR>s that had snuck in from a DOS/Windows
138 environment into my Unix environment, and try to make sure than
139 DOS/Windows users get them back.
140 * We would silently generate broken tools if insns.dat wasn't sorted
141 properly. Change insns.pl so that the order doesn't matter.
142 * Fix bug in insns.pl (introduced by me) which would cause conditional
143 instructions to have an extra "cc" in disassembly, e.g. "jnz"
144 disassembled as "jccnz".
147 For release 0.98p3.2:
149 * Merged in John S. Fine's changes from his 0.98-J4 prerelease; see
150 http://www.csoft.net/cz/johnfine/
151 * Changed previous "spotless" Makefile target (appropriate for distribution)
152 to "distclean", and added "cleaner" target which is same as "clean"
153 except deletes files generated by Perl scripts; "spotless" is union.
154 * Removed BASIC programs from distribution. Get a Perl interpreter
156 * Calling this "pre-release 3.2" rather than "p3-hpa2" because of
157 John's contributions.
158 * Actually link in the IEEE output format (zoutieee.c); fix a bunch of
159 compiler warnings in that file. Note I don't know what IEEE output
160 is supposed to look like, so these changes were made "blind".
163 For release 0.98p3-hpa:
165 * Merged nasm098p3.zip with nasm-0.97.tar.gz to create a fully
166 buildable version for Unix systems (Makefile.in updates, etc.)
167 * Changed insns.pl to create the instruction tables in nasm.h and
168 names.c, so that a new instruction can be added by adding it *only*
170 * Added the following new instructions: SYSENTER, SYSEXIT, FXSAVE,
171 FXRSTOR, UD1, UD2 (the latter two are two opcodes that Intel
172 guarantee will never be used; one of them is documented as UD2 in
173 Intel documentation, the other one just as "Undefined Opcode" --
174 calling it UD1 seemed to make sense.)
175 * MAX_SYMBOL was defined to be 9, but LOADALL286 and LOADALL386 are 10
176 characters long. Now MAX_SYMBOL is derived from insns.dat.
177 * A note on the BASIC programs included: forget them. insns.bas is
178 already out of date. Get yourself a Perl interpreter for your
179 platform of choice at:
181 http://www.cpan.org/ports/index.html