Instruction Notation Examples - Nintendo Ultra64 Programmer's Manual

Revision 1.0
Table A-1RSP Instruction Operation Notations
Symbol
ACC[e] Vector Unit Accumulator, element e. The ACC has
8 elements each 48 bits wide.
dmem[x] DMEM contents beginning at byte address x.
T+i: Indicates the time steps between operations. Each
of the statements within a time step are defined to
be executed in sequential order (as modified by
conditional and loop constructs). Operations which
are marked T+i: are executed at instruction cycle i
relative to the start of execution of the instruction.
Thus, an instruction which starts at time j executes
operations marked T+i
interpretation of the order of execution between two
instructions or two operations which execute at the
same time should be pessimistic; the order is not
defined.
x is clamped to prevent overflow (signed clamp).
Clamp_Signed(x)

Instruction Notation Examples

The following examples illustrate the application of some of the instruction
notation conventions:
Meaning
:
at time i + j. The
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