X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=NEWS;h=21ca81720cb540feeb330661e63cf5dc52331749;hb=57e21c4b62e8c1a1ee7ef59ed2abb0c864fb06bc;hp=45ccbdf1afdaf147f6cfec28f5d6c842ce74fd10;hpb=2b596efa9a6b08a22bbdcdf88198c5d2af1d0335;p=sbcl.git

diff --git a/NEWS b/NEWS
index 45ccbdf..21ca817 100644
--- a/NEWS
+++ b/NEWS
@@ -2002,6 +2002,16 @@ changes in sbcl-0.8.3 relative to sbcl-0.8.2:
     obscure ANSI requirements
 
 changes in sbcl-0.8.4 relative to sbcl-0.8.3:
+  * incompatible change: The --disable-debugger command line
+    option now clobbers the debugger at a more fundamental
+    level, by redefining #'INVOKE-DEBUGGER instead of by 
+    rebinding *DEBUGGER-HOOK*. The main difference is that BREAK
+    is specified by ANSI to ignore *DEBUGGER-HOOK* and
+    INVOKE-DEBUGGER regardless. Under the old system, BREAK would
+    enter the debugger REPL and then suffer recursive errors
+    because *DEBUG-IO* is also messed up in --disable-debugger mode;
+    while under the new system, BREAK in --disable-debugger mode
+    terminates the system just as an unhandled error would.
   * fixed compiler performance when processing loops with a step >1;
   * bug fix: DOCUMENTATION now retrieves generic function
     documentation.  Also, DOCUMENTATION and (SETF DOCUMENTATION)
@@ -2013,16 +2023,52 @@ changes in sbcl-0.8.4 relative to sbcl-0.8.3:
     combination.  (reported by Andreas Fuchs)
   * bug fix: RUN-PROGRAM now does not fail if some element in $PATH
     names a non-existent directory.  (thanks to Andreas Fuchs)
+  * bug fix: ROUND and TRUNCATE could, under certain circumstances on
+    the PPC platform, lead to stack corruption; this has been fixed.
+    (reported by Rainer Joswig)
+  * bug fix: ASH on an (UNSIGNED-BYTE 32) with a shift of -32 or lower
+    no longer ever returns 1 instead of 0.  (thanks to Lars Brinkhoff)
+  * fixed bug 285: TRUNCATE on bignum arguments, and indeed bignum
+    arithmetic in general, is now much more reliable on the PPC
+    platform.
   * optimization: restored some effective method precomputation in
     CLOS (turned off by an ANSI fix in sbcl-0.8.3); the amount of
     precomputation is now tunable.
   * optimization: compiler-internal data structure use has been
     reviewed, and changes have been made that should improve the
     performance of the compiler by about 20%.
+  * optimization: performance of FILL (and :INITIAL-ELEMENT) on
+    simple-base-strings and simple-bit-vectors is improved.
   * microoptimization: the compiler is better able to make use of the
     x86 LEA instruction for multiplication by constants.
   * bug fix: in some situations compiler did not report usage of
     generic arithmetic in (SPEED 3) policy.
+  * bug 145b fix: compiler used wrong type specifier while converting
+    MEMBER-types to numeric.
+  * bug fix: COMPILE-FILE must bind *READTABLE*. (reported by Doug
+    McNaught)
+  * fixed some bugs revealed by Paul Dietz' test suite:
+    ** the RETURN clause in LOOP is now equivalent to DO (RETURN ...).
+    ** ROUND and FROUND now give the right answer when given very
+       small float arguments.
+    ** (FLOAT X) for X of type DOUBLE-FLOAT now returns X in all
+       circumstances.
+    ** optimizer for (EXPT X 0) did not work for X not of type FLOAT.
+    ** (GCD 0 <negative-integer>) returned <negative-integer>.
+    ** LCM should return a non-negative integer.
+    ** PARSE-INTEGER returned the index of a terminator instead of the
+       upper bounding index of a substring in case :JUNK-ALLOWED NIL.
+    ** PARSE-INTEGER returned an incorrect index being applied to a
+       displaced string.
+    ** LCM with two arguments of 0 returns 0 rather than signalling
+       DIVISION-BY-ZERO.
+    ** unsigned addition of a 32-bit constant with the high bit set no
+       longer causes an internal compiler error on the x86.
+    ** LOGBITP accepts a non-negative bignum as its INDEX argument.
+    ** compiler incorrectly derived types of DPB and DEPOSIT-FIELD
+       with negative last argument.
+    ** byte specifiers with zero size and position no longer cause
+       an error during type derivation.
 
 planned incompatible changes in 0.8.x:
   * (not done yet, but planned:) When the profiling interface settles