/[cmucl]/src/general-info/release-19f.txt
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Contents of /src/general-info/release-19f.txt

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Wed Nov 12 16:01:15 2008 UTC (5 years, 5 months ago) by rtoy
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Info on SSE2 support.
1 rtoy 1.1 ========================== C M U C L 19 f =============================
2    
3     [--- WORK IN PROGRESS ---]
4    
5     The CMUCL project is pleased to announce the release of CMUCL 19f.
6     This is a major release which contains numerous enhancements and
7     bugfixes from the 19e release.
8    
9     CMUCL is a free, high performance implementation of the Common Lisp
10     programming language which runs on most major Unix platforms. It
11     mainly conforms to the ANSI Common Lisp standard. CMUCL provides a
12     sophisticated native code compiler; a powerful foreign function
13     interface; an implementation of CLOS, the Common Lisp Object System,
14     which includes multimethods and a metaobject protocol; a source-level
15     debugger and code profiler; and an Emacs-like editor implemented in
16     Common Lisp. CMUCL is maintained by a team of volunteers collaborating
17     over the Internet, and is mostly in the public domain.
18    
19     New in this release:
20    
21    
22     * Feature enhancements:
23 rtoy 1.14 - ~R supports many more cardinal names.
24 rtoy 1.16 - Updated network support:
25     o Added BIND-INET-SOCKET to bind a socket to a local address.
26     o Added OPEN-NETWORK-STREAM to create a stream connected to a given host.
27     o Added ACCEPT-NETWORK-STREAM to create a stream connected to
28     the new network connection
29     o Updated CONNECT-TO-INET-SOCKET to allow binding the newly
30     created socket to a local address
31 rtoy 1.21 - Added UNIX:UNIX-OPENPTY, an interface to the openpty C library
32     function.
33 rtoy 1.23 - SSE2 support added for x86.
34     o CMUCL automatically detects whether sse2 is supported or not
35     and loads up the appropriate core file.
36     o New -fpu switch allows the user to specify explicitly which
37     core should be used.
38     o Fasls compiled with sse2 support have the extension sse2f.
39     Otherwise, the normal x86f extension is used. This allows the
40     user to do tests/experiments with both x87 and sse2 without
41     having to mess around with different directories and removing
42     fasls before building for a different FPU.
43 rtoy 1.16
44 rtoy 1.1 * ANSI compliance fixes:
45 rtoy 1.3 - Fix bug in backquote printer. If the variable is @foo, we want
46     to print ", @foo" not ",@foo". Similarly, for .foo, we want to
47     print ", .foo" instead of ",.foo".
48 rtoy 1.5 - Fix merging of version in MAKE-PATHNAME. If the pathname name
49     is given, the version is not affected by the version in the
50     default pathname.
51 rtoy 1.10 - RENAME-FILE now creates defaulted-new-name from merging new-name
52     with the original filespec. This is an incompatible change from
53     the previous version which created defaulted-new-name from
54     merging the new-name with the truename of filespec. Also, a
55     logical pathname should be returned if new-name is a logical
56     pathname.
57 rtoy 1.17 - Character names need to be a capital letter followed by lower
58     case. Needed to match what ~:C does. (Found via ansi-tests).
59 rtoy 1.1
60     * Bugfixes:
61 rtoy 1.3 - Compiler can now derive the rank of an array, even if the array
62     is not simple.
63     - Fix off-by-one bug in ~R which prevents printing numbers from
64     10^63 to 10^66-1. 10^63 is a vigintillion.
65     - The compiler and interpreter should now handle slot-value the
66     same. Previously, different results were returned for things
67     like (slot-value foo :a).
68 rtoy 1.4 - UNIX-GETGRNAM is now defined for Darwin (x86 and ppc).
69 rtoy 1.5 - UNIX-GETPWUID is defined for all BSD systems.
70     - Type-derivation for EXPT no longer causes errors in some
71     situations. The computed bounds were of the wrong type for the
72     resulting type specifier.
73     - Pathname printer no longer produces an error for (MAKE-PATHNAME
74     :HOST NIL :TYPE "foo"). It returns #P(:HOST NIL :TYPE "foo")
75     now.
76     - Type derivation for DOUBLE-DOUBLE-FLOAT arithmetic should be
77     working. Previously, all arithmetic operations would just
78     return DOUBLE-DOUBLE-FLOAT even though the compiler should have
79     been able to figure out a tighter result.
80 rtoy 1.6 - When SCALE-FLOAT would underflow, it would always return 0f0,
81     instead of a floating-point zero of the correct type.
82 rtoy 1.7 - Fix some issues in creating the debug arglist string when the
83     arglist contains items that can't be printed readably.
84 rtoy 1.11 - DIRECTORY is now faster for directories with a large number of
85     files.
86 rtoy 1.14 - RANDOM is now much faster on all platforms for numbers upto
87 rtoy 1.12 #xffffffff. This is an incompatible change from previous
88     releases because the numbers produced may be different from
89     before.
90 rtoy 1.14 - The small bias in RANDOM for integer args up to 32 bits long
91     should now be gone.
92 rtoy 1.17 - Improved type derivation for LOGAND when one arg is bounded but
93     the other is not.
94 rtoy 1.18 - Some issues with tracing on sparc and ppc have been fixed. This
95     usually manifests itself with a segfault just after the function
96     result is printed.
97     - Fixed bug on sparc where C-c sometimes causes a segfault. We
98     now handle the case where siginfo_t is NULL, which can also
99     happen on other architectures.
100 rtoy 1.19 - The interpreter catches invalid EVAL-WHEN situations just like
101     the compiler, instead of silently ignoring them.
102 rtoy 1.22 - FLOAT-PRECISION supports double-double floats.
103 rtoy 1.1
104     * Trac Tickets:
105 rtoy 1.6 - #16: Read-time hash-table issue
106     Fixed.
107 rtoy 1.15 - #17: LOOP NAMED NIL has no effect
108     Fixed.
109 rtoy 1.17 - #18: Modular arith bug 1
110     Fixed
111     - #19: Modular arith bug 2
112     Fixed by not doing modular arith if the args are known to be
113     fixnums.
114     - #20: Modular arith bug?
115     Workaround applied.
116 rtoy 1.20 - #24: Float contagion for expt
117     Float contagion is applied to the arguments before computing
118     expt.
119 rtoy 1.1
120     * Other changes:
121 rtoy 1.13 - IS1, IS2, IS3, and IS4 are recognized character names for the
122     ASCII control codes US, RS, GS, FS, respectively.
123     - Added OPEN-NETWORK-STREAM and ACCEPT-NETWORK-STREAM functions.
124 rtoy 1.17 - When initializing a random state, try to read 627 words from
125     /dev/urandom to initialize the entire state vector with random
126     bits. Previously, only one word was read.
127     - A seed of 0 is allowed in KERNEL:INIT-RANDOM-STATE.
128 rtoy 1.18 - Updated User guide to include more examples of tracing.
129     - Enable gencgc page protection on x86/darwin. This can speed up
130     GC a bit. (Not measured.)
131 rtoy 1.20 - Bignum truncate is significantly faster. Some cl-bench
132     benchmarks are now almost twice as fast.
133     - The continuable error produced by raising an integer to a power
134     exceeding *intexp-maximum-exponent* is now a restart, giving the
135     user the option to continue and update the limit to the new
136     power.
137 rtoy 1.18
138 rtoy 1.1 * Improvements to the PCL implementation of CLOS:
139 rtoy 1.5 - The compiler and interpreter should handle SLOT-VALUE the same
140     way. Previously, (SLOT-VALUE obj :a) would behave differently
141     in the compiler and interpreter.
142 rtoy 1.9 - Some issues with get-accessor-method-function and
143     slot-value-using-class have been fixed.
144     Get-accessor-method-function was causing an error to be signaled
145     incorrectly.
146 rtoy 1.1
147 rtoy 1.3 * Changes to building procedure:
148 rtoy 1.1
149     This release is not binary compatible with code compiled using CMUCL
150 rtoy 1.3 19e; you will need to recompile FASL files.
151 rtoy 1.1
152     See <URL:http://www.cons.org/cmucl/> for download information,
153     guidelines on reporting bugs, and mailing list details.
154    
155    
156     We hope you enjoy using this release of CMUCL!
157    

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