[net.micro.6809] Need RAM test for 64K CoCo

knudsen@ihwpt.UUCP (mike knudsen) (03/18/86)

Does anyone know of a program to test the full 64K
RAM on a CoCo?  I'd prefer it running under OS9
(since that's where my suspected RAM glitches show
up), but free-standing would be OK too.

I'd like a test that just keeps re-running until you
hit RESET, for hours if need be, printing out any bad
addresses and bits as they are found.

Under OS9, such a program would "alloc" all the data space
the system would give it (around 40K) and flog that.
I think my buggy area is in the center of the address space
or near to it.

I can write my own free-standing program, using a scheme
I wrote in 8086 assembler some time ago, but I'd appreciate
any help to save me work.  (No, the Diagnostic RomPak only
tests 16K and passes if the chips are plugged into the
board and have power).
	thanks, mike k
	
PS: My SAM chip has always run nice and cool, tho the 6809
itself get pretty warm.  COuld one of these be flakey such
that it look like a RAM problem?