When the process starts to run, especially the time instance that the CPU attempts to fetch instructions from the virtual memory area mapped to the text section, page fault will be generated as page frame is not present.
Moreover, the basic principle is that the write permission and the execute permission on a host page frame should not be granted at the same time.
The contents of the page frame are then saved, using the expanded memory driver, into LIM memory (the special memory board).
In effect, expanded memory uses the page frame as a transfer point that can switch needed pages and store pages that are not currently needed.
Software must adhere to the EMS specification to be able to use the expanded memory page frame
address in upper memory.
If any page frame has not been allocated yet, it will try to allocate one.
While on the host side, the pre-allocated page pool is adopted to accelerate page frame allocation for guest DMA buffers.
As well as displaying page frames
of lyrical settings in vibrant hues, intriguing effects are achieved by piercing the sequence of pages with small hexagonal shapes.
The turning pages show strip frames, whole page frames
, and double page frames
all of which enhance the impression of the characters being on the move.
The layout of the page frames
displays every device known to practitioners of graphic narratives.
Together with the text pages which carry the dialogue between mother and toddler, the pictorial compositions alternate between full page frames
illustrated in saturated colour and small strip frames displaying wordless sequences across a double spread in unsaturated colour, giving form to the little boy's thoughts and speculations about the forthcoming baby.
The Bears' tale, with a text, appears on the recto in page frames
with images on a large scale, lightly coloured in crayon and inks.