Texas Instruments TMS320C67X/C67X+ DSP manual Occurs

Instruction Operation and Execution Notations

Table 3−1. Instruction Operation and Execution Notations (Continued)

Symbol	Meaning
sint	Signed 32-bit integer value
slong	Signed 40-bit integer value
sllong	Signed 64-bit integer value
slsb16	Signed 16-bit integer value in lower half of 32-bit register
smsb16	Signed 16-bit integer value in upper half of 32-bit register
sp	Single-precision floating-point register value that can optionally use cross path
sp(x)	Convert x to sp
sqrcp(x)	Square root of reciprocal approximation of x
src1_h	msb32 of src1
src1_l	lsb32 of src1
src2_h	msb32 of src2
src2_l	lsb32 of src2
s2	Two packed signed 16-bit integers in a single 32-bit register
s4	Four packed signed 8-bit integers in a single 32-bit register
−s	Perform 2s-complement subtraction and saturate the result to the result size, if an overflow
	occurs
+s	Perform 2s-complement addition and saturate the result to the result size, if an overflow
	occurs
ubyte0	Unsigned 8-bit value in the least-significant byte position in 32-bit register (bits 0−7)
ubyte1	Unsigned 8-bit value in the next to least-significant byte position in 32-bit register (bits 8−15)
ubyte2	Unsigned 8-bit value in the next to most-significant byte position in 32-bit register (bits 16−23)
ubyte3	Unsigned 8-bit value in the most-significant byte position in 32-bit register (bits 24−31)
ucstn	n-bit unsigned constant field (for example, ucst5)
uint	Unsigned 32-bit integer value
ulong	Unsigned 40-bit integer value
ullong	Unsigned 64-bit integer value
ulsb16	Unsigned 16-bit integer value in lower half of 32-bit register

3-4 Instruction Set SPRU733