On Mon, Jun 12, 2017 at 11:35 PM, Willard Goosey <goo...@sdc.org> wrote:
> > > >Is malloc/free implemented? > > Nope. The full Small-C spec (I dug up the 1984 book!) calls for an > AVAIL() function that I should implement. > > A Malloc arena would, properly, start immediately above RAM files and > grow upwards... Except that filespace can grow! Oops! I don't think > that's a place I want to go. > > > Thanks for the responses. I'll give some thought to a "heap". One idea would be to just allocate a heap on the stack. I think the stack grows downward from HIMEM towards files that grow up from low RAM. It's basically the programmer's problem to worry about it. I'm not sure a guard is possible because, yeah, files grow at runtime. So it would be expensive to constantly monitor. Though if we create a file management library it could probably be done efficiently if the programmer agrees to only use the file management library to mess with files. -- John.
