Moveto_ix_7F ($F30C)

Moveto_ix_b ($F30E)

Moveto_ix_FF ($F308)

These routines force the scale factor to 0xFF, 0X7F, or the A register, and then move the pen to the (y,x) position pointed to by the X-register. The X-register is then incremented by 2.

ENTRY:

DP = $D0

X-reg points to the (y,x) coordinate pair

B-reg contains the scale factor (Moveto_ix_b only)

EXIT:

X-reg has been incremented by 2

D-reg trashed

Source