On 4/14/2013 1:08 PM, Richard wrote:
> ----- Original Message -----
> From: "Lee Hart"
>> I'm working on patching my old Tiny BASIC to also get it to work with
>> this setup. The only change is to patch the auto-memory sizing so it
>> doesn't try to over-write the copy of BASIC that's in RAM.
> The Elf II Tiny Basic Has A Upper Memory End Stop At hex 11E
> It Right after the default program start
> Your version probably has the same.
Yeah; but I got clever. I combined the monitor and Tiny Basic into one
4k ROM. The monitor is the part that actually does the memory sizing. It
needs RAM for its register save/restore and breakpoints. It starts
testing high, and progresses downward until it finds a byte that it
can't change (the ROM). Unfortunately, this test fails when the monitor
and BASIC are in RAM.
I'll get to it. Just too many other things to do...
If you want to build a ship, don't drum up people to collect wood
and don't assign them tasks and work. Rather, teach them to long
for the endless immensity of the sea. -- Antoine de Saint-Exupery
Lee A. Hart, http://www.sunrise-ev.com/LeesEVs.htm