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