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change increment arguments to a more efficiency level & change gc.nil, gc.one, gc.zero to constant nil, one, zero

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ValKmjolnir
2022-02-04 01:51:30 +08:00
parent 0783f02860
commit 666feae851
5 changed files with 67 additions and 72 deletions
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nasal_gc.h
+13 -19
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@@ -30,17 +30,17 @@ const uint32_t increment[vm_type_size]=
0, // vm_num
/* gc object */
512, // vm_str
512, // vm_func
512, // vm_vec
512, // vm_hash
64 // vm_obj
1024,// vm_func
4096,// vm_vec
256, // vm_hash
16 // vm_obj
};
struct nasal_vec;
struct nasal_hash;
struct nasal_func;
struct nasal_obj;
struct nasal_val;
struct nasal_val; // nasal_val includes gc-managed types
struct nasal_ref
{
@@ -118,9 +118,9 @@ struct nasal_obj
void clear(){ptr=nullptr;}
};
constexpr uint8_t GC_UNCOLLECTED=0;
constexpr uint8_t GC_COLLECTED =1;
constexpr uint8_t GC_FOUND =2;
const uint8_t GC_UNCOLLECTED=0;
const uint8_t GC_COLLECTED =1;
const uint8_t GC_FOUND =2;
struct nasal_val
{
uint8_t mark;
@@ -316,12 +316,12 @@ inline nasal_hash* nasal_ref::hash(){return value.gcobj->ptr.hash;}
inline nasal_func* nasal_ref::func(){return value.gcobj->ptr.func;}
inline nasal_obj* nasal_ref::obj (){return value.gcobj->ptr.obj; }
constexpr uint32_t STACK_MAX_DEPTH=4095;
const uint32_t STACK_MAX_DEPTH=4095;
const nasal_ref zero={vm_num,(double)0};
const nasal_ref one ={vm_num,(double)1};
const nasal_ref nil ={vm_nil,nullptr};
struct nasal_gc
{
nasal_ref zero;
nasal_ref one;
nasal_ref nil;
nasal_ref stack[STACK_MAX_DEPTH+1];// 1 reserved to avoid stack overflow
nasal_ref* top; // stack top
std::vector<nasal_ref> strs; // reserved address for const vm_str
@@ -399,13 +399,7 @@ void nasal_gc::init(const std::vector<std::string>& s)
memory.push_back(tmp);
free_list[i].push(tmp);
}
top=stack; // set top to stack
zero={vm_num,(double)0}; // init constant 0
one ={vm_num,(double)1}; // init constant 1
nil ={vm_nil,nullptr}; // init constant nil
top=stack;
// init constant strings
strs.resize(s.size());
for(uint32_t i=0;i<strs.size();++i)