ast_get_index_reg
u8 vgacrd0 = ast_get_index_reg(ast, AST_IO_VGACRI, 0xd0);
vgacrd1 = ast_get_index_reg(ast, AST_IO_VGACRI, 0xd1);
vgacrd7 = ast_get_index_reg(ast, AST_IO_VGACRI, 0xd7);
vgacrd6 = ast_get_index_reg(ast, AST_IO_VGACRI, 0xd6);
ediddata[0] = ast_get_index_reg(ast, AST_IO_VGACRI, 0xd8);
ediddata[1] = ast_get_index_reg(ast, AST_IO_VGACRI, 0xd9);
ediddata[2] = ast_get_index_reg(ast, AST_IO_VGACRI, 0xda);
ediddata[3] = ast_get_index_reg(ast, AST_IO_VGACRI, 0xdb);
u8 vgacrd1 = ast_get_index_reg(ast, AST_IO_VGACRI, 0xd1);
u8 vgacre3 = ast_get_index_reg(ast, AST_IO_VGACRI, 0xe3);
vgacrdc = ast_get_index_reg(ast, AST_IO_VGACRI, 0xdc);
vgacraa = ast_get_index_reg(ast, AST_IO_VGACRI, 0xaa);
vgacr99 = ast_get_index_reg(ast, AST_IO_VGACRI, 0x99);