Memory support
The following routines are for dynamic memory allocation.
- sbrk()
- caddr_t
- RAMSIZE
The functions, malloc(), calloc(), and realloc() all call sbrk() at their lowest levels. sbrk() returns a pointer to the last memory address your application used before more memory was allocated.
Defined elsewhere as char *.
A compile-time option that moves a pointer to heap memory and checks for the upper limit.
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