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Diff of /sml/trunk/HISTORY

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revision 729, Thu Nov 9 02:16:17 2000 UTC revision 731, Fri Nov 10 22:57:45 2000 UTC
# Line 13  Line 13 
13  Description:  Description:
14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16    Name: Allen Leung
17    Date: 2000/11/10 18:00:00
18    Tag: leunga-20001110-new-x86-fp
19    
20    A new x86 floating point code generator has been added.
21    By default this is turned off.  To turn this on, do:
22    
23        CM.autoload "$smlnj/compiler.cm";
24        Compiler.Control.MLRISC.getFlag "x86-fast-fp" := true;
25    
26    Changes:
27    
28    1.  Changed FTAN to FPTAN so that the assembly output is correct.
29    2.  Changed the extension callback for FTANGENT to generate:
30    
31              fptan
32              fstp  %st(0)
33        instead of
34              fptan
35              fstpl ftempmem
36    
37    3.  Numerous assembly fixes for x86.
38    
39    5.  Cleaned up the machine code output module x86/x86MC.sml and added
40        support for a whole bunch of instructions and addressing modes:
41    
42          fadd/fsub/fsubr/fmul/fdiv/fdivr  %st, %st(n)
43          faddp/fsubp/fsubrp/fmulp/fdivp/fdivrp  %st, %st(n)
44          fadd/fsub/fsubr/fmul/fdiv/fdivr  %st(n), %st
45          fiadd/fisub/fisubr/fimul/fidiv/fidivr mem
46          fxch %st(n)
47          fld %st(n)
48          fst %st(n)
49          fst mem
50          fstp %st(n)
51          fucom %st(n)
52          fucomp %st(n)
53    
54        All these are now generated when the fast fp mode is turned on.
55    
56    6.  Removed the dedicated registers %st(0), ..., %st(7) from X86CpsRegs
57    
58    ----------------------------------------------------------------------
59  Name: Matthias Blume  Name: Matthias Blume
60  Date: 2000/11/09 11:20:00 JST  Date: 2000/11/09 11:20:00 JST
61  Tag: blume-20001109-scc  Tag: blume-20001109-scc

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