add demand paging for systems with serial memory#224
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use macros in @ ! w@ w! c@ c! and +!
add QA macros from PortAudio
Add more unit tests.
The basic outer interpreter works for static dictionaries.
use demand paging in ffReadFile and ffWriteFile
Fix behavior of read and write when we hit the end of file.
Add PF_ASSERT() macro. Add pagedmem.h to highlight the serial memory API.
DRAFT - need to try on RPi in 32-bit mode
For demand paging on a system with 16-bit pointers, we need to support 16-bit pointers in the kernel, and 32-bit CELL and VM addresses on the stack. This commit fixes some problem related to casting pointers to cell_t. We were getting sign expension. This was fixed by by using (uintptr_t). I also fixed some unnecessary narrowing when aligning dictionary addresses.
Change td_sourcePtr to virtual_address_t. Fix lots of warnings. Portable formats for printing cell in unittest.h Some assistance from Gemini Pro.
Add test for FLOAT compiled in a word Fix FLOAT LITERAL
Used (uintptr_t) casting to address warnings related to converting form a 32-bit cell_t to a pointer.
Leave paged memory in known state. Also add another technique for munging virtual addresses in the simulator.
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Some devices have a small static RAM and a large serial memory.
But the serial memory cannot be directly accessed.
This PR puts the the dictionary and header into serial memory
and pages it into physical RAM as needed.