SDKZSPF LSI, SDKZSPF Datasheet - Page 76

• Manufacturer Part Number: SDKZSPF
• Manufacturer: LSI

Specifications of SDKZSPF

• Lead Free Status / Rohs Status: Supplier Unconfirmed

3-22
Another approach that preserves the ETSI defined interface is to use
N_norm_l to implement the ETSI function. For example, norm_l could
be implemented as:
static inline int norm_l(long src) {
}
You may implement some ETSI functions can be implemented using N-
Intrinsics, but you must set mode bits in %fmode accordingly. For
example, you can implement the ETSI function L_mac using N_mac, but
you must also set the SAT and Q15 mode bits in %fmode. This
correspondence between N-Intrinsics and ETSI functions is shown in
Table
Table 3.11
C Cross Compiler
Copyright © 1999-2003 by LSI Logic Corporation. All rights reserved.
ETSI Function
abs_s
extract_h
L_abs
L_deposit_h
L_mac
L_macN
L_msu
L_msuN
L_mult
L_shl
mac_r
msu_r
mult
int ret;
N_norm_l(ret,src);
return(ret);
3.11.
ETSI to N-Intrinsic Mapping
N-Intrinsic
N_abs_s
N_extract_h
N_abs_l
N_deposit_h
N_mac
N_mac
N_macn
N_macn
N_mul
N_shla_l
N_mac
N_macn
N_mul
sat
1
0
1
0
1
1
1
x
x
x
x
x
x
fmode
q15
x
x
x
x
1
1
1
1
1
x
1
1
1
1
Register Bits
sre
x
x
x
x
x
x
x
x
x
x
x
x
x
mre
x
x
x
x
0
0
0
0
0
x
1
1
0