Abstract: The invention provides a method of providing commands to a command memory where a graphics processor will have commands available for execution as long as there are commands available. The command memory includes a first indicator to identify the command location most recently accessed by the graphics processor. A second indicator identifies the number of commands locations available to write commands based on the most recently accessed command location. As a result of the invention, the application processor only checks the availability of space to write commands after it has written enough commands to fill the command memory. On the graphics processor side, the command memory is never empty unless the graphics processor executes and consumes instructions faster than the instructions are written. It is also possible to associate a graphics mode with each address range. In this way, mode can be indicated without specifically sending mode information with each command.

Abstract: The invention concerns a process for improving the characteristics in respect of fatigue strength and toughness of worked Al alloys in the treated state, by means of a thermo-mechanical treatment which is carried out on the cast and possibly homogenized product.It comprises the following steps:(a) casting an initial product along an axis XX' by a known method(b) optional homogenization(c) upsetting in the hot state, preferably by means of a press, along the axis XX', with an upsetting ratio (initial length/final length along axis XX')>1.4(d) drawing in the hot state in the direction of the axis XX', with a rate of working (initial cross section/final cross section, considered perpendicularly to the axis XX')>1.