48 lines
1.4 KiB
C++
Executable File
48 lines
1.4 KiB
C++
Executable File
#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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as 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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c_to_factor_func = (c_to_factor_func_type)c_to_factor_block->entry_point();
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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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/* We return word->code->entry_point() and not word->entry_point,
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because if profiling is enabled, we don't want to go through the
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entry point's profiling stub. This clobbers registers, since entry
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points use the C ABI and not the Factor ABI. */
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tagged<word> entry_point_word(special_objects[n]);
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return (Func)entry_point_word->code->entry_point();
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}
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void factor_vm::unwind_native_frames(cell quot, stack_frame *to)
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{
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get_entry_point<unwind_native_frames_func_type>(UNWIND_NATIVE_FRAMES_WORD)(quot,to);
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}
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cell factor_vm::get_fpu_state()
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{
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return get_entry_point<get_fpu_state_func_type>(GET_FPU_STATE_WORD)();
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}
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void factor_vm::set_fpu_state(cell state)
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{
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get_entry_point<set_fpu_state_func_type>(GET_FPU_STATE_WORD)(state);
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}
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}
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