On Fri, Feb 24, 2023 at 12:10 PM Kenneth Pettit <petti...@gmail.com> wrote:
Or you can look at the active ROWs, COLs addresses > > M100: > ROWS: F63Bh will be 8 or 25 > COLS: F63Ch will be 40 or 80 > > T200: > ROWS: EF08H will be 16 or 25 > COLS: EF09H will be 40 or 80 > Ken, that is pretty nifty! Do you know if any other values are ever assigned to ROWS or COLS? For example, did the “VIEW 80” Option ROM (which showed 60 columns on a Model 100) change COLS to 60? Also, I’m curious whether that BASIC routine I shared earlier for detecting the screen size (?CHR$(27)"Y~~"; : RO=CSRLIN+1: CO=POS(0)+1) would have any benefit compared to just reading the values directly. Perhaps it might be more portable, but I seem to recall the PC-8201A may have had a different name for CSRLIN. —b9
