Revision a3f5054b

b/tcg/README
75 75
* Helpers:
76 76

  
77 77
Using the tcg_gen_helper_x_y it is possible to call any function
78
taking i32, i64 or pointer types. Before calling an helper, all
79
globals are stored at their canonical location and it is assumed that
80
the function can modify them. In the future, function modifiers will
81
be allowed to tell that the helper does not read or write some globals.
78
taking i32, i64 or pointer types. By default, before calling an helper,
79
all globals are stored at their canonical location and it is assumed
80
that the function can modify them. This can be overriden by the
81
TCG_CALL_CONST function modifier. By default, the helper is allowed to
82
modify the CPU state or raise an exception. This can be overriden by
83
the TCG_CALL_PURE function modifier, in which case the call to the
84
function is removed if the return value is not used.
82 85

  
83 86
On some TCG targets (e.g. x86), several calling conventions are
84 87
supported.

Also available in: Unified diff