zx81-loader.p: Improve the ZX81 loading program.

Two important changes (sorry):

  * Automatically run the program when it's loaded.  I've just
    (re?)discovered that if you `save' within a program then it
    continues where it left off, so use this mechanism.

  * Set `ramtop' below where the program lives before running it,
    because the ZX81 snapshots don't include `ramtop' in the memory
    image.

diff --git a/zx81-loader.p b/zx81-loader.p
index 77d7287..76e1b98 100644 (file)
Binary files a/zx81-loader.p and b/zx81-loader.p differ