Sharp PC-E500 memory maps?

[Dave Britten]

I got ahold of a PC-E500, and I'm attempting to convert some PC-1500 games to run on it. One issue I've run into is positioning the graphics cursor. On the PC-1500, if you PRINT; then GPRINT something, the cursor position for the GPRINT will flow naturally from wherever PRINT; left off. Not so on the PC-E500: there's a separate graphics cursor position controlled with the GCURSOR command, which defaults to 0, 0 at the top left of the screen.

I figure I could make a small subroutine that reads the current text cursor position (i.e. set via LOCATE), and calculates appropriate arguments for GCURSOR. The problem is I don't know how to read the current text cursor position! Anybody have any sort of memory map that might indicate where to PEEK the cursor position?