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Diff of /sml/trunk/HISTORY

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revision 642, Thu May 11 07:30:29 2000 UTC revision 646, Tue May 16 02:52:54 2000 UTC
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12  Tag: <post-commit CVS tag>  Tag: <post-commit CVS tag>
13  Description:  Description:
14  ----------------------------------------------------------------------  ----------------------------------------------------------------------
15    Name: Allen Leung
16    Date: 2000/05/15 16:02 EDT
17    Tag: leunga-20000515-alpha-x86-ra
18    Description:
19    
20      1. Alpha
21    
22          Slight cleanup.  Removed the instruction SGNXL
23    
24      2. X86
25    
26          Added the following instructions to the instruction set:
27    
28            ROLx, RORx,
29            BTx, BTSx, BTLx, BTRx,
30            XCHGx, and variants with the LOCK prefix
31    
32      3. Register Allocation
33    
34          The module ra-rewrite-with-renaming has been improved.
35    
36    ----------------------------------------------------------------------
37    Name: Matthias Blume
38    Date: 2000/05/15 16:20:00 JST
39    Tag: blume-20000515-lightrebuild
40    Description:
41    
42    1. I added an alternative to "-rebuild" to "makeml".  The difference is
43       that prior to calling CMB.make' the CM-variable "LIGHT" will be
44       defined.  In effect, the command will not build any cross-compiler
45       backends and therefore finish more quickly.
46    
47       The "fixpt" script also takes a "-light" switch to be able to use
48       this new facility while compiling for a fixpoint.
49    
50    2. I replaced all mentions of anchored paths in group owner specifications
51       with simple relative paths (usually starting with "..").
52       The rationale is that a library's internal workings should not be
53       compromised by the lack of some anchor.  (An anchor is necessary
54       for someone who wants to refer to the library by an anchored path,
55       but it should not be necessary to build the same library in the first
56       place.)
57    
58    3. I changed the way CM's tool mechanism determines the shell command
59       string used for things like ml-yacc etc. so that it does not break
60       when CM.Control.implicit_anchors is turned off.
61    
62    ----------------------------------------------------------------------
63    Name: Matthias Blume
64    Date: 2000/05/12 18:20:00 JST
65    Tag: blume-20000512-ml-build
66    Description:
67    
68    Fixed a bug in config/_ml-build that prevented ml-yacc and ml-lex from
69    getting installed properly (by config/install.sh).
70    
71    ----------------------------------------------------------------------
72    Name: Matthias Blume
73    Date: 2000/05/12 17:30:00 JST
74    Tag: blume-20000512-anchors
75    Description:
76    
77    !!! NEW BOOT FILES !!!
78    
79    This change is in preparation of fading out support for "implicitly
80    anchored path names".  I went through all sources and used the
81    explicit (and relatively new) $-notation.  See system/README and the
82    CM manual for more info on this.
83    
84    I also modified the anchoring scheme for some things such as "smlnj",
85    "MLRISC", "cm", etc. to take advantage of the fact that explicit
86    anchors are more expressive: anchor name and first arc do not have to
87    coincide.  This entails the following user-visible change:
88    
89    You have to write $smlnj/foo/bar instead of smlnj/foo/bar.  In
90    particular, when you fire up sml with a command-line argument, say,
91    e.g.:
92    
93       sml '$smlnj/cmb.cm'
94    
95    At the ML toplevel prompt:
96    
97       CM.autoload "$smlnj/cmb.cm";
98    
99    There is also a new controller in CM.Control that can be used to turn
100    off all remaining support for implicit anchors by saying:
101    
102        CM.autoload "$smlnj/
103        #set CM.Control.implicit_anchors false;
104    
105    This causes CM to reject implicitly anchored paths.  This is (for the
106    time being) less permissive than the "final" version where there will
107    be no more such implicit anchors and relative paths will be just that:
108    relative.
109    
110    The next step (version after next version?) will be to make the
111    default for CM.Control.implicit_anchors false.  After the dust has
112    settled, I can then produce the "final" version of this...
113    
114    Note: Since bootstrapping is a bit tricky, I provided new boot files.
115    
116    ----------------------------------------------------------------------
117  Name: Matthias Blume  Name: Matthias Blume
118  Date: 2000/05/11 16:30:00 JST  Date: 2000/05/11 16:30:00 JST
119  Tag: blume-20000511-sources  Tag: blume-20000511-sources

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