Currently the graphics operation word is 56 bits long. The significance of the bits are described below:

- Bits 55 to 53: The opcode.
With five different types of operations, we used three bits to represent the desired operation.
`0b000`is rotation about the x-axis,`0b001`is rotation about the y-axis,`0b010`is rotation about the z-axis,`0b100`is translation,`0b101`is scaling. - Bits 52 to 48: An index to a parametrized value.
Updating parametrized values was not implemented, but 5 bits were reserved to index into a structure or table of values that would be updated upon very frame.
Specifying
`0b00000`would be always return a value of 1 (no parametrization). - Bits 47 to 32, 31 to 16, and 15 to 0: The three 16-bit arguments to the transformations. For translation and scaling, all three values are used for the x-, y-, and z-transformations. For rotation, only the first is used as , the degree of rotation, represented as units of radians.

2007-12-02