HP 35s Checksum explained

[MarkHaysHarris777]

(02-09-2015 10:36 PM)Tugdual Wrote:  In the case 2 the literal "1" doesn't have the same address as in case 1 because it is pushed ahead by the previous EQN declaration and this is fooling the CRC calculation.

Except for one small problem... I deleted *all* of my test equations and *none* of my programs with literals changed... nor did their checksums.

I then added a random EQN as you did
EQN 123456789

... and none of my programs with literals changed, nor did their checksums. In fact, since I have been on this journey I have been adding equations and programs and *none* of the checksums have changed (I have not tried any of this on the emulator).

Something else must be involved (or the hardware itself). Later tonight I'll start with memory clear on one machine and try to reproduce what you have described... I'll get back to you.

marcus