Perform RAM test
Function AddressDescription
RAMTAS FF87Perform RAM test

This routine is used to test RAM and set the top and bottom of memory pointers accordingly.

It clears locations &00 to &0101 and &0200 to &03FF. It then allocates the cassette buffer, and sets the screen base to $0400.

Normally, this routine is called as part of the initialization process of a Commodore 64 program cartridge.