INT 62 u - FGDRIVER v3.03+ - "FG_CIRCLEF" - DRAW FILLED CIRCLE
AX = 000Eh
BX = radius in horizontal screen space units (> 0)
Note: the FGDRIVER functions are rearranged with each major release, but
their parameters do not change (see #03474)
SeeAlso: AX=0008h,AX=000Dh,AX=0027h,AX=0092h