rem: SetAPen( amiga_window->RPort, amiga_pen ); SetDrMd( amiga_window->RPort, JAM1 );
add: SetABPenDrMd( amiga_window->RPort, amiga_pen, 0, JAM1 );
context: ui_line(uint8 opcode,	/* dest */ int startx, int starty, int endx, int endy,	/* pen */ PEN *pen){  LONG amiga_pen = amiga_obtain_pen( pen->colour );//  printf( "line\n" );  startx += amiga_window->BorderLeft;  starty += amiga_window->BorderTop;  endx   += amiga_window->BorderLeft;  endy   += amiga_window->BorderTop;  // TODO: Use opcode, style and width  SetAPen( amiga_window->RPort, amiga_pen );  SetDrMd( amiga_window->RPort, JAM1 );  Move( amiga_window->RPort, startx, starty );  Draw( amiga_window->RPort, endx, endy );  amiga_release_pen( amiga_pen );}