6 void factor_vm::c_to_factor(cell quot)
8 /* First time this is called, wrap the c-to-factor sub-primitive inside
9 of a callback stub, which saves and restores non-volatile registers
10 as per platform ABI conventions, so that the Factor compiler can treat
11 all registers as volatile */
14 tagged<word> c_to_factor_word(special_objects[C_TO_FACTOR_WORD]);
15 code_block *c_to_factor_block = callbacks->add(c_to_factor_word.value(),0);
16 c_to_factor_func = (c_to_factor_func_type)c_to_factor_block->entry_point();
19 c_to_factor_func(quot);
22 template<typename Func> Func factor_vm::get_entry_point(cell n)
24 /* We return word->code->entry_point() and not word->entry_point,
25 because if profiling is enabled, we don't want to go through the
26 entry point's profiling stub. This clobbers registers, since entry
27 points use the C ABI and not the Factor ABI. */
28 tagged<word> entry_point_word(special_objects[n]);
29 return (Func)entry_point_word->code->entry_point();
32 void factor_vm::unwind_native_frames(cell quot, stack_frame *to)
34 get_entry_point<unwind_native_frames_func_type>(UNWIND_NATIVE_FRAMES_WORD)(quot,to);
37 cell factor_vm::get_fpu_state()
39 return get_entry_point<get_fpu_state_func_type>(GET_FPU_STATE_WORD)();
42 void factor_vm::set_fpu_state(cell state)
44 get_entry_point<set_fpu_state_func_type>(GET_FPU_STATE_WORD)(state);