/vm/entry_points.cpp
http://github.com/abeaumont/factor · C++ · 53 lines · 42 code · 7 blank · 4 comment · 1 complexity · 3d5851c92ac5c7650cf7d7afab5df0b1 MD5 · raw file
- #include "master.hpp"
- namespace factor
- {
- void factor_vm::c_to_factor(cell quot)
- {
- /* First time this is called, wrap the c-to-factor sub-primitive inside
- of a callback stub, which saves and restores non-volatile registers
- per platform ABI conventions, so that the Factor compiler can treat
- all registers as volatile */
- if(!c_to_factor_func)
- {
- tagged<word> c_to_factor_word(special_objects[C_TO_FACTOR_WORD]);
- code_block *c_to_factor_block = callbacks->add(c_to_factor_word.value(),0);
- void* func = c_to_factor_block->entry_point();
- CODE_TO_FUNCTION_POINTER_CALLBACK(this, func);
- c_to_factor_func = (c_to_factor_func_type)func;
- }
- c_to_factor_func(quot);
- }
- template<typename Func> Func factor_vm::get_entry_point(cell n)
- {
- tagged<word> entry_point_word(special_objects[n]);
- return (Func)entry_point_word->entry_point;
- }
- void factor_vm::unwind_native_frames(cell quot, void *to)
- {
- tagged<word> entry_point_word(special_objects[UNWIND_NATIVE_FRAMES_WORD]);
- void *func = entry_point_word->entry_point;
- CODE_TO_FUNCTION_POINTER(func);
- ((unwind_native_frames_func_type)func)(quot,to);
- }
- cell factor_vm::get_fpu_state()
- {
- tagged<word> entry_point_word(special_objects[GET_FPU_STATE_WORD]);
- void *func = entry_point_word->entry_point;
- CODE_TO_FUNCTION_POINTER(func);
- return ((get_fpu_state_func_type)func)();
- }
- void factor_vm::set_fpu_state(cell state)
- {
- tagged<word> entry_point_word(special_objects[SET_FPU_STATE_WORD]);
- void *func = entry_point_word->entry_point;
- CODE_TO_FUNCTION_POINTER(func);
- ((set_fpu_state_func_type)func)(state);
- }
- }