SDKZSPF LSI, SDKZSPF Datasheet - Page 332

• Manufacturer Part Number: SDKZSPF
• Manufacturer: LSI

Specifications of SDKZSPF

• Lead Free Status / Rohs Status: Supplier Unconfirmed

D-4
Long norm_l (long var1)
int norm_s (int var1)
Long L_deposit_h (int var1)
int extract_h (long)
Long L_abs (long var1)
int abs_s (int var1)
int round (long)
L-Intrinsic Functions
Copyright © 1999-2003 by LSI Logic Corporation. All rights reserved.
This function produces the number of left
shifts required to normalize a 32-bit vari-
able var1. The number is a 32-bit result.
This function produces the number of left
shifts required to normalize a 16-bit vari-
able var1. The number is a 16-bit result.
This function returns a 32-bit result, where
the high-order 16 bits is the input 16-bit
variable var1, and the low-order 16 bits
are zeroed.
This function returns a 16-bit result which
is the high-order 16 bits of the 32-bit input.
This function returns a 32-bit result which
is the absolute value of the 32-bit variable
var1. Note that abs (0x8000) returns
0x7FFF.
This function returns a 16-bit result which
is the absolute value of the 16-bit variable
var1. Note that abs.s (0x8000) returns
0x7FFF.
This function returns a 16-bit result. The
result is obtained by rounding the lower 16
bits of the 32-bit input number and storing
it in the higher 16 bits with saturation. This
value is then shifted right by 16 bits to
obtain the result.