VGA_RENDER_CONTROL__VGA_VSTATUS_CNTL_MASK
(vga_render_control & ~VGA_RENDER_CONTROL__VGA_VSTATUS_CNTL_MASK));
RREG32(mmVGA_RENDER_CONTROL) & ~VGA_RENDER_CONTROL__VGA_VSTATUS_CNTL_MASK);
tmp &= VGA_RENDER_CONTROL__VGA_VSTATUS_CNTL_MASK;
(vga_render_control & ~VGA_RENDER_CONTROL__VGA_VSTATUS_CNTL_MASK));
(vga_render_control & ~VGA_RENDER_CONTROL__VGA_VSTATUS_CNTL_MASK));