Diff of /sml/branches/primop-branch-3/NOTES/HISTORY

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	revision 1183, Fri Mar 29 19:09:48 2002 UTC	revision 1220, Wed May 22 15:04:10 2002 UTC
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15	----------------------------------------------------------------------	----------------------------------------------------------------------
16	Name: Matthias Blume	Name: Matthias Blume
17		Date: 2002/05/22 11:03:00 EDT
18		Tag: blume-20020522-shrink
19		Description:
20
21		John tweaked yesterday's fix for 1131 to handle an out-of-memory
22		situation that comes up when allocating huge arrays.
23
24		----------------------------------------------------------------------
25		Name: Matthias Blume
26		Date: 2002/05/21 16:00:00 EDT
27		Tag: Release_110_40
28		Description:
29
30		New working release (110.40).  New bootfiles.
31
32		[Also: John Reppy fixed GC bug 1131.]
33
34		----------------------------------------------------------------------
35		Name: Matthias Blume
36		Date: 2002/05/21 12:35:00 EDT
37		Tag: blume-20020521-cmdoc
38		Description:
39
40		CM documentation update.
41
42		----------------------------------------------------------------------
43		Name: Matthias Blume
44		Date: 2002/05/21 10:55:00 EDT
45		Tag: blume-20020521-misc
46		Description:
47
48		- John tweaked runtime to be silent on heap export (except when
49		GC messages are on).
50		- I added a few more things (cross-compiling versions of CMB) to
51		config/preloads (as suggestions).
52
53		----------------------------------------------------------------------
54		Name: Matthias Blume
55		Date: 2002/05/20 22:25:00 EDT
56		Tag: blume-20020520-controls
57		Description:
58
59		- Added ControlUtil structure to control-lib.cm.
60		- Use it throughout.
61		- Used Controls facility to define MLRISC controls (as opposed to
62		registering MLRISC control ref cells with Controls after the fact)
63		- Fixed messed-up controls priorities.
64
65		* Removed again all the stuff from config/preloads that one wouldn't
66		be able to preload at the time the initial heap image is built.
67		(Many libraries, e.g., CML, do not exist yet at this time.  The
68		only libraries that can be preloaded via config/preloads are those
69		that come bundled with the bootfiles.)
70
71		----------------------------------------------------------------------
72		Name: Matthias Blume
73		Date: 2002/05/20 10:59:00 EDT
74		Tag: blume-20020520-preloads
75		Description:
76
77		Added a lot of commented-out suggestions for things to be included
78		in config/preloads.
79
80		----------------------------------------------------------------------
81		Name: Allen Leung
82		Date: 2002/05/18 14:20:00 EDT
83		Tag: leunga-20020518-mdl
84		Description:
85
86		o Made the mdl tool stuff compile and run again.
87		o I've disabled all the stuff that depends on RTL specifications; they
88		are all badly broken anyway.
89
90		----------------------------------------------------------------------
91		Name: Matthias Blume
92		Date: 2002/05/17 16:49:00 EDT
93		Tag: blume-20020517-controls
94		Description:
95
96		0. John Reppy made several modifications to the SML/NJ library.
97		In particular, there is a shiny new controls-lib.cm.
98
99		1. Pushed new controls interface through compiler so that everything
100		compiles again.
101
102		2. Added FormatComb and FORMAT_COMB to the CML version of the
103		SML/NJ library (so that CML compiles again).
104
105		3. Modified init scripts because XXX_DEFAULT environment variables
106		are no longer with us.  (Boot-time initialization is now done
107		using the same environment variables that are also used for
108		startup-time initialization of controls.)
109
110		----------------------------------------------------------------------
111		Name: Lal George
112		Date: 2002/05/15 09:20:10 EDT
113		Tag: george-20020515-pseudo-op-decls
114		Description:
115
116		All pseudo-ops emitted before the first segment declaration
117		such as TEXT, DATA, and BSS directives are assumed to be global
118		declarations and are emitted first in the assembly file. This is
119		useful in a number of situations where one has pseudo-ops that are not
120		specific to any segment, and also works around the constraint that one
121		cannot have client pseudo-ops in the TEXT segment.
122
123		Because no segment is associated with these declarations it is
124		an error to allocate any space or objects before the first segment
125		directive and an exception will be raised. However, we cannot make
126		this check for client pseudo-ops.
127
128		These top level declarations are a field in the CFG graph_info.
129		In theory you can continue to add to this field after the CFG has been
130		built -- provided you know what you are doing;-)
131
132		----------------------------------------------------------------------
133		Name: Matthias Blume
134		Date: 2002/05/13 16:40:00 EDT
135		Tag: blume-20020513-pp-etc
136		Description:
137
138		A few minor bugfixes:
139
140		- Stopgap measure for bug recently reported by Elsa Gunter (ppDec).
141		(Bogus printouts for redefined bindings still occur.  Compiler
142		bug should no longer occur now.  We need to redo the prettyprinter
143		from scratch.)
144
145		- CM pathname printer now also adds escape sequences for ( and )
146
147		- commend and docu fixes for ml-nlffi
148
149		----------------------------------------------------------------------
150		Name: Matthias Blume
151		Date: 2002/05/10 16:40:00 EDT
152		Tag: blume-20020510-erg-textio
153		Description:
154
155		Applied the following bugfix provided by Emden Gansner:
156
157		Output is corrupted when outputSubstr is used rather than output.
158
159		The problem occurs when a substring
160
161		ss = (s, dataStart, dataLen)
162
163		where dataStart > 0, fills a stream buffer with avail bytes left.
164		avail bytes of s, starting at index dataStart, are copied into the
165		buffer, the buffer is flushed, and then the remaining dataLen-avail
166		bytes of ss are copied into the beginning of the buffer. Instead of
167		starting this copy at index dataStart+avail in s, the current code
168		starts the copy at index avail.
169
170		Fix:
171		In text-io-fn.sml, change line 695 from
172		val needsFlush = copyVec(v, avail, dataLen-avail, buf, 0)
173		to
174		val needsFlush = copyVec(v, dataStart+avail, dataLen-avail, buf, 0)
175
176		----------------------------------------------------------------------
177		Name: Matthias Blume
178		Date: 2002/04/12 13:55:00 EDT
179		Tag: blume-20020412-assyntax
180		Description:
181
182		1. Grabbed newer assyntax.h from the XFree86 project.
183		2. Fiddled with how to compile X86.prim.asm without warnings.
184		3. (Very) Minor cleanup in CM.
185
186		----------------------------------------------------------------------
187		Name: Matthias Blume
188		Date: 2002/04/01 (no joke!) 17:07:00 EST
189		Tag: blume-20020401-x86div
190		Description:
191
192		Added full support for div/mod/rem/quot on the x86, using the machine
193		instruction's two results (without clumsily recomputing the remainder)
194		directly where appropriate.
195
196		Some more extensive power-of-two support was added to the x86 instruction
197		selector (avoiding expensive divs, mods, and muls where they can be
198		replaced with cheaper shifts and masks).  However, this sort of thing
199		ought to be done earlier, e.g., within the CPS optimizer so that
200		all architectures benefit from it.
201
202		The compiler compiles to a fixed point, but changes might be somewhat
203		fragile nevertheless.  Please, report any strange things that you might
204		see wrt. div/mod/quot/rem...
205
206		----------------------------------------------------------------------
207		Name: Matthias Blume
208		Date: 2002/03/29 17:22:00
209		Tag: blume-20020329-div
210		Description:
211
212		Fixed my broken div/mod logic.  Unfortunately, this means that the
213		inline code for div/mod now has one more comparison than before.
214		Fast paths (quotient > 0 or remainder = 0) are not affected, though.
215		The problem was with quotient = 0, because that alone does not tell
216		us which way the rounding went.  One then has to look at whether
217		remainder and divisor have the same sign...  :(
218
219		Anyway, I replaced the bootfiles with fresh ones...
220
221		----------------------------------------------------------------------
222		Name: Matthias Blume
223	Date: 2002/03/29 14:10:00 EST	Date: 2002/03/29 14:10:00 EST
224	Tag: blume-20020329-inlprims	Tag: blume-20020329-inlprims
225	Description:	Description:

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