49 lines
749 B
C++
49 lines
749 B
C++
namespace factor
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{
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/* The compiled code heap is structured into blocks. */
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struct code_block
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{
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cell header;
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cell owner; /* tagged pointer to word, quotation or f */
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cell literals; /* tagged pointer to array or f */
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cell relocation; /* tagged pointer to byte-array or f */
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bool free_p() const
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{
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return header & 1 == 1;
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}
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code_block_type type() const
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{
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return (code_block_type)((header >> 1) & 0x3);
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}
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void set_type(code_block_type type)
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{
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header = ((header & ~0x7) | (type << 1));
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}
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bool pic_p() const
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{
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return type() == code_block_pic;
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}
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bool optimized_p() const
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{
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return type() == code_block_optimized;
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}
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cell size() const
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{
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return header & ~7;
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}
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void *xt() const
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{
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return (void *)(this + 1);
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}
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};
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}
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