WP-34S: Safely copy a graphics register's contents

[Paul Dale]

(06-11-2014 10:01 PM)Dave Britten Wrote:  Ah, R-COPY should be the secret ingredient I need. Currently the program happens to be running in BASE 10 64-bit word size when it does the STO/RCL, so it appears to work fine, but I'll change it to the safer method. Looks like I just need to call 1.01 R-COPY to do the job.

You should be safe in 64 bit integer mode. Masking off the unused bits here won't change anything. The sign mode shouldn't matter but unsigned would be safest.

The base is display only so that won't impact the contents.

1.01 R-COPY can be written as # 101 SDR 002 R-COPY. This will save a couple of steps and be faster.


- Pauli