52 lines
894 B
C++
52 lines
894 B
C++
namespace factor
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{
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struct gc_info {
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int scrub_d_count;
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int scrub_r_count;
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int gc_root_count;
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int return_address_count;
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cell total_bitmap_size()
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{
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return return_address_count * (scrub_d_count + scrub_r_count + gc_root_count);
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}
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cell total_bitmap_bytes()
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{
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return ((total_bitmap_size() + 7) / 8);
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}
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u32 *return_addresses()
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{
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return (u32 *)((u8 *)this - return_address_count * sizeof(u32));
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}
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u8 *gc_info_bitmap()
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{
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return (u8 *)return_addresses() - total_bitmap_bytes();
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}
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cell scrub_d_base(cell index)
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{
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return index * scrub_d_count;
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}
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cell scrub_r_base(cell index)
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{
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return return_address_count * scrub_d_count +
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index * scrub_r_count;
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}
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cell spill_slot_base(cell index)
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{
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return return_address_count * scrub_d_count
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+ return_address_count * scrub_r_count
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+ index * gc_root_count;
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}
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int return_address_index(cell return_address);
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};
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}
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