On Mon, Sep 26, 2022 at 4:46 PM Will Senn <[email protected]> wrote:
> Hi all, > > On my newly acquired M100, I see 29266 Bytes Free. It looks like I've got > 32K installed, yippee one less thing I have to hunt down. However, when I > print himem, I see 62960. This seems at odds with having 32K. What's the > deal? > > That's normal. It's a 64K address space. The lower 32k is rom, the higher 32k (in a 32k machine) is RAM. Himem That's the point of memory reserves for your use, instead of the OS. At this point, you haven't taken anything away from the OS, so it's close to 64k. If you want to reserve memory for a CO program to run in, or to put a TSR, or anything else, you use the CLEAR command to move point of himem down. The lower it is, the less is reserved to the OS. Otherwise you're leaving all the space for file system, the stack, and file descriptors. -- John.
