Table A-1Rsp Instruction Operation Notations - Nintendo Ultra64 Programmer's Manual

152

Table A-1RSP Instruction Operation Notations

Symbol

Assignment.
Bit string concatenation.
||
y
Replication of bit value
x
is always a single-bit value.
Selection of bits
x
y...z
Little-endian bit notation is always used. If
than
string.
+ 2's complement or floating-point addition.
- 2's complement or floating-point subtraction.
* 2's complement or floating-point multiplication.
2's complement integer division.
div
2's complement modulo.
mod
Floating-point division.
/
2's complement less than comparison.
<
and Bit-wise logical AND.
or Bit-wise logical OR.
xor Bit-wise logical XOR.
nor Bit-wise logical NOR.
GPR[x] General-Register x. The content of GPR[0] is
always zero. Attempts to alter the content of GPR[0]
have no effect.
CPR[z,x] Coprocessor unit z, general register x.
CCR[z,x] Coprocessor unit z, control register x.
VR[x][e] Vector Unit register x, byte e. (a VU register is 16
bytes wide)
Meaning
x
into a
y through z of bit string
z
, this expression is an empty (zero length) bit
y x
-bit string. Note:
x .
y
is less