123     Cell   *free;                      // pointer to the first free cell  member
405     for (cell = hd->free; cell != NULL; cell = cell->next)  in OS_AllocFromHeap()
429         hd->free = DLExtract(hd->free, cell);  in OS_AllocFromHeap()
458             SDK_TASSERTMSG(hd->free == cell, OS_ERR_ALLOCFROMHEAP_BROKENHEAP);  in OS_AllocFromHeap()
459             hd->free = newCell;  in OS_AllocFromHeap()
551         for (cell = hd->free; cell; cell = cell->next)  in OS_AllocFixed()
577                 hd->free = DLExtract(hd->free, cell);   // Note cell->next is intact. XXX  in OS_AllocFixed()
610                     hd->free = newCell; // new head  in OS_AllocFixed()
722     hd->free = DLInsert(hd->free, cell);  in OS_FreeToHeap()
775         hd->free = DLInsert(hd->free, cell);  in OS_FreeAllToHeap()
859         hd->free = hd->allocated = NULL;  in OS_InitAlloc()
943 …SDK_TASSERTMSG(!DLOverlap(heapInfo->heapArray[heap].free, start, end), OS_ERR_CREATEHEAP_INVRANGE);  in OS_CreateHeap()
964             hd->free = cell;  in OS_CreateHeap()
1030                 hd->free = cell;  in OS_CreateExtraHeap()
1084     size = DLSize(hd->free);  in OS_DestroyHeap()
1101     hd->free = hd->allocated = NULL;   // add to dolphin src  in OS_DestroyHeap()
1175 …    SDK_TASSERTMSG(!DLOverlap(heapInfo->heapArray[i].free, start, end), OS_ERR_ADDTOHEAP_INVRANGE);  in OS_AddToHeap()
1189     hd->free = DLInsert(hd->free, cell);  in OS_AddToHeap()
1271     long    free = 0;  in OS_CheckHeap()  local
1320     OSi_CHECK(hd->free == NULL || hd->free->prev == NULL);  in OS_CheckHeap()
1321     for (cell = hd->free; cell; cell = cell->next)  in OS_CheckHeap()
1340         free += cell->size - HEADERSIZE;  in OS_CheckHeap()
1349     retValue = free;  in OS_CheckHeap()
1471     if ( ! hd->free )  in OS_DumpHeap()
1477         for (cell = hd->free; cell; cell = cell->next)  in OS_DumpHeap()
1613     for (cell = heapInfo->heapArray[heap].free; cell; cell = cell->next)  in OS_GetTotalFreeSize()
1651     for (cell = heapInfo->heapArray[heap].free; cell; cell = cell->next)  in OS_GetMaxFreeSize()
1728     hd->free = cell;  in OS_ClearHeap()