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[smlnj] Diff of /sml/branches/primop-branch-3/NOTES/HISTORY
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Diff of /sml/branches/primop-branch-3/NOTES/HISTORY

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revision 839, Thu Jun 7 20:28:44 2001 UTC revision 840, Fri Jun 15 19:05:19 2001 UTC
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14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16  Name: Matthias Blume  Name: Matthias Blume
17    Date: 2001/06/15 15:05:00 EDT
18    Tag: blume-20010615-sparc
19    Description:
20    
21    The purpose of this update is to provide an implementation of NLFFI
22    on Sparc machines.
23    
24    Here are the changes in detail:
25    
26       * src/MLRISC/sparc/c-calls/sparc-c-calls.sml is a new file containing
27       the Sparc implementation of the c-calls API.
28       * The Sparc backend of SML/NJ has been modified to uniformely use %fp
29       for accessing the ML frame.  Thus, we have a real frame pointer and
30       can freely modify %sp without need for an omit-frame-ptr phase.
31       The vfp logic in src/compiler/CodeGen/* has been changed to accomodate
32       this case.
33       * ml-nlffigen has been taught to produce code for different architectures
34       and calling conventions.
35       * In a way similar to what was done in the x86 case, the Sparc
36       backend uses its own specific extension to mltree.  (For example,
37       it needs to be able to generate UNIMP instructions which are part
38       of the calling convention.)
39       * ml-nlffi-lib was reorganized to make it more modular (in particular,
40       to make it easier to plug in new machine- and os-dependent parts).
41    
42    There are some other fairly unrelated bug fixes and cleanups as well:
43    
44       * I further hacked the .cm files for MLRISC tools (like MDLGen) so
45       that they properly share their libraries with existing SML/NJ libraries.
46       * I fixed a minor cosmetic bug in CM, supressing certain spurious
47       follow-up error messages.
48       * Updates to CM/CMB documentation.
49    
50    TODO items:
51    
52       * MLRISC should use a different register as its asmTemp on the Sparc.
53         (The current %o2 is a really bad choice because it is part of the
54         calling conventions, so things might interfere in unexpected ways.)
55    
56    ----------------------------------------------------------------------
57    Name: Matthias Blume
58  Date: 2001/06/07  Date: 2001/06/07
59  Tag: blume-20010607-calls  Tag: blume-20010607-calls
60  Description:  Description:

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