INT FF - PC/FORTH - GRAPHICS API BX = function number 0001h function REDRAW 0002h function !PEL 0003h function @PEL 0004h function LINE 0005h function ARC 0006h function @BLOCK 0007h function !BLOCK 0008h function FLOOD DS:SI -> FORTH program counter SS:BP -> FORTH parameter stack SS:SP -> FORTH return stack details of parameters not available Return: AX,BX,CX,DX,ES,DI may be destroyed Note: these functions all display an error message if the graphics routines are not resident