Display a character using the Doors CS font-display routines, completely separate from (and somewhat faster than) the TI-OS VPutMap routine. In the future it will support multiple font sets, although currently only fontset 0 (3x5 variable-width graphscreen font) is supported.
Technical Details #
a = character to display
e = fontset to use (only set 0 is currently valid)
Character displayed onscreen at (pencol, penrow) and pencol advanced by the width of the character including its rightmost blank column.
af, bc, de, hl