SDKZSPF LSI, SDKZSPF Datasheet - Page 74

• Manufacturer Part Number: SDKZSPF
• Manufacturer: LSI

Specifications of SDKZSPF

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Table 3.9
3-20
Intrinsic Function
N_mac(accum acc, int x, int y)
N_macn(accum acc, int x, int y)
N_mac2(accum acc, long x, long y) mac2.acc x,y
N_mul(accum acc, int x, int y)
N_muln(accum acc, int x, int y)
N_norm_l(int ret, long a)
N_norm_s(int ret, int a)
N_extract_h(int ret, long a)
N_deposit_h(long ret, int a)
N_abs_l(long ret, long a)
N_abs_s(int ret, int a)
N_round_l(long ret, long a)
N_shla_l(long ret, int a)
N_shla_s(int ret, int a)
N-Intrinsic Functions
N-intrinsics are implemented by the compiler using the assembly
instructions shown in
and are described in
C Cross Compiler
Copyright © 1999-2003 by LSI Logic Corporation. All rights reserved.
Generated Code
mac.acc x, y
macn.acc x, y
mul.acc x, y
muln.acc x, y
norm.e ret, a
norm ret, a
ret = a[31:16]
ret[31:16] = a
ret[15:0] = 0
abs.e ret, a
abs ret, a
round.e ret, a
shla.e ret, a
shla ret, a
Appendix D, “L-Intrinsic Functions.”
Table
3.9. The older L-intrinsics are still supported
Analogous L-Intrinsic
L_maca, L_macb
L_macna, L_macnb
L_mac2a, L_mac2b
L_mula, L_mulb
None
norm_l
norm_s
extract_h
L_deposit_h
L_abs
abs_s
round
L_shla
shla