VGA_GFX_SR_ENABLE
vga_wgfx(cinfo->regbase, VGA_GFX_SR_ENABLE, 0x00);
vga_wgfx(regbase, VGA_GFX_SR_ENABLE, fg_color);
vga_wgfx(regbase, VGA_GFX_SR_ENABLE, 0x00);
par->gdc[VGA_GFX_SR_ENABLE] = 0x00;
oldsr = vga_io_rgfx(VGA_GFX_SR_ENABLE);
gdc[VGA_GFX_SR_ENABLE] = 0x00;
gr1 = vga_rgfx(state->vgabase, VGA_GFX_SR_ENABLE);
vga_wgfx(state->vgabase, VGA_GFX_SR_ENABLE, 0x00);
vga_wgfx(state->vgabase, VGA_GFX_SR_ENABLE, gr1);