Apple 1/MC6800 test program

I wrote a trivial 6800 program to test my rewritten monitor. It just outputs the character set to the display continuously.

        org  $0300
test:   ldaa #$a0
loop:   jsr  echo
        inca
        cmpa #$e0
        bne  loop
        bra  test

Enter it with this command:

300:86 A0 BD FF B4 4C 81 E0 26 F8 20 F4

Verify it with this command:

300.30B

And run it with this command:

300R
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