| /* ------------------------------------------------------------------ |
| * Copyright (C) 1998-2009 PacketVideo |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either |
| * express or implied. |
| * See the License for the specific language governing permissions |
| * and limitations under the License. |
| * ------------------------------------------------------------------- |
| */ |
| /**************************************************************************************** |
| Portions of this file are derived from the following 3GPP standard: |
| |
| 3GPP TS 26.073 |
| ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec |
| Available from http://www.3gpp.org |
| |
| (C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) |
| Permission to distribute, modify and use this file under the standard license |
| terms listed above has been obtained from the copyright holder. |
| ****************************************************************************************/ |
| /* |
| Pathname: ./include/basic_op_arm_v5.h |
| |
| ------------------------------------------------------------------------------ |
| REVISION HISTORY |
| |
| Who: Date: |
| Description: |
| |
| ------------------------------------------------------------------------------ |
| INCLUDE DESCRIPTION |
| |
| This file includes all the ARM-V5 based basicop.c functions. |
| |
| ------------------------------------------------------------------------------ |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| ; CONTINUE ONLY IF NOT ALREADY DEFINED |
| ----------------------------------------------------------------------------*/ |
| #ifndef BASIC_OP_ARM_V5_H |
| #define BASIC_OP_ARM_V5_H |
| |
| /*---------------------------------------------------------------------------- |
| ; INCLUDES |
| ----------------------------------------------------------------------------*/ |
| #include "basicop_malloc.h" |
| |
| /*--------------------------------------------------------------------------*/ |
| #ifdef __cplusplus |
| extern "C" |
| { |
| #endif |
| |
| |
| /*---------------------------------------------------------------------------- |
| ; MACROS |
| ; Define module specific macros here |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; DEFINES |
| ; Include all pre-processor statements here. |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; EXTERNAL VARIABLES REFERENCES |
| ; Declare variables used in this module but defined elsewhere |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; SIMPLE TYPEDEF'S |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; ENUMERATED TYPEDEF'S |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; STRUCTURES TYPEDEF'S |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; GLOBAL FUNCTION DEFINITIONS |
| ; Function Prototype declaration |
| ----------------------------------------------------------------------------*/ |
| |
| |
| /* |
| ------------------------------------------------------------------------------ |
| FUNCTION NAME: L_add |
| ------------------------------------------------------------------------------ |
| INPUT AND OUTPUT DEFINITIONS |
| |
| Inputs: |
| L_var1 = 32 bit long signed integer (Word32) whose value falls |
| in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff. |
| |
| L_var2 = 32 bit long signed integer (Word32) whose value falls |
| in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff. |
| |
| pOverflow = pointer to overflow (Flag) |
| |
| Outputs: |
| pOverflow -> 1 if the 32 bit add operation resulted in overflow |
| |
| Returns: |
| L_sum = 32-bit sum of L_var1 and L_var2 (Word32) |
| */ |
| |
| __inline Word32 L_add(register Word32 L_var1, register Word32 L_var2, Flag *pOverflow) |
| { |
| Word32 result; |
| |
| OSCL_UNUSED_ARG(pOverflow); |
| __asm |
| { |
| QADD result, L_var1, L_var2 |
| } |
| return(result); |
| } |
| |
| /* |
| ------------------------------------------------------------------------------ |
| FUNCTION NAME: L_sub |
| ------------------------------------------------------------------------------ |
| INPUT AND OUTPUT DEFINITIONS |
| |
| Inputs: |
| L_var1 = 32 bit long signed integer (Word32) whose value falls |
| in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff. |
| |
| L_var2 = 32 bit long signed integer (Word32) whose value falls |
| in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff. |
| |
| pOverflow = pointer to overflow (Flag) |
| |
| Outputs: |
| pOverflow -> 1 if the 32 bit add operation resulted in overflow |
| |
| Returns: |
| L_diff = 32-bit difference of L_var1 and L_var2 (Word32) |
| */ |
| __inline Word32 L_sub(Word32 L_var1, Word32 L_var2, Flag *pOverflow) |
| { |
| Word32 result; |
| |
| OSCL_UNUSED_ARG(pOverflow); |
| |
| __asm |
| { |
| QSUB result, L_var1, L_var2 |
| } |
| |
| return(result); |
| |
| } |
| |
| |
| /* |
| ------------------------------------------------------------------------------ |
| FUNCTION NAME: L_mac |
| ------------------------------------------------------------------------------ |
| INPUT AND OUTPUT DEFINITIONS |
| |
| Inputs: |
| L_var3 = 32 bit long signed integer (Word32) whose value falls |
| in the range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. |
| var1 = 16 bit short signed integer (Word16) whose value falls in |
| the range : 0xffff 8000 <= var1 <= 0x0000 7fff. |
| var2 = 16 bit short signed integer (Word16) whose value falls in |
| the range : 0xffff 8000 <= var2 <= 0x0000 7fff. |
| |
| pOverflow = pointer to overflow (Flag) |
| |
| Outputs: |
| pOverflow -> 1 if the 32 bit add operation resulted in overflow |
| |
| Returns: |
| result = 32-bit result of L_var3 + (var1 * var2)(Word32) |
| */ |
| __inline Word32 L_mac(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow) |
| { |
| Word32 result; |
| Word32 L_sum; |
| |
| OSCL_UNUSED_ARG(pOverflow); |
| |
| __asm {SMULBB result, var1, var2} |
| __asm {QDADD L_sum, L_var3, result} |
| return (L_sum); |
| } |
| |
| /* |
| ------------------------------------------------------------------------------ |
| FUNCTION NAME: L_mult |
| ------------------------------------------------------------------------------ |
| INPUT AND OUTPUT DEFINITIONS |
| |
| Inputs: |
| L_var1 = 16 bit short signed integer (Word16) whose value falls in |
| the range : 0xffff 8000 <= var1 <= 0x0000 7fff. |
| |
| L_var2 = 16 bit short signed integer (Word16) whose value falls in |
| the range : 0xffff 8000 <= var1 <= 0x0000 7fff. |
| |
| pOverflow = pointer to overflow (Flag) |
| |
| Outputs: |
| pOverflow -> 1 if the 32 bit add operation resulted in overflow |
| |
| Returns: |
| L_product = 32-bit product of L_var1 and L_var2 (Word32) |
| */ |
| __inline Word32 L_mult(Word16 var1, Word16 var2, Flag *pOverflow) |
| { |
| Word32 result; |
| Word32 product; |
| |
| OSCL_UNUSED_ARG(pOverflow); |
| |
| __asm |
| { |
| SMULBB product, var1, var2 |
| QADD result, product, product |
| } |
| |
| return (result); |
| } |
| |
| |
| /* |
| ------------------------------------------------------------------------------ |
| FUNCTION NAME: L_msu |
| ------------------------------------------------------------------------------ |
| INPUT AND OUTPUT DEFINITIONS |
| |
| Inputs: |
| L_var3 = 32 bit long signed integer (Word32) whose value falls |
| in the range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. |
| |
| var1 = 16 bit short signed integer (Word16) whose value falls in |
| the range : 0xffff 8000 <= var1 <= 0x0000 7fff. |
| var2 = 16 bit short signed integer (Word16) whose value falls in |
| the range : 0xffff 8000 <= var2 <= 0x0000 7fff. |
| |
| pOverflow = pointer to overflow (Flag) |
| |
| Outputs: |
| pOverflow -> 1 if the 32 bit operation resulted in overflow |
| |
| Returns: |
| result = 32-bit result of L_var3 - (var1 * var2) |
| */ |
| __inline Word32 L_msu(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow) |
| { |
| Word32 product; |
| Word32 result; |
| |
| OSCL_UNUSED_ARG(pOverflow); |
| |
| __asm |
| { |
| SMULBB product, var1, var2 |
| QDSUB result, L_var3, product |
| } |
| |
| return (result); |
| } |
| |
| /* |
| ------------------------------------------------------------------------------ |
| FUNCTION NAME: Mpy_32 |
| ------------------------------------------------------------------------------ |
| INPUT AND OUTPUT DEFINITIONS |
| |
| Inputs: |
| L_var1_hi = most significant word of first input (Word16). |
| L_var1_lo = least significant word of first input (Word16). |
| L_var2_hi = most significant word of second input (Word16). |
| L_var2_lo = least significant word of second input (Word16). |
| |
| pOverflow = pointer to overflow (Flag) |
| |
| Outputs: |
| pOverflow -> 1 if the 32 bit multiply operation resulted in overflow |
| |
| Returns: |
| L_product = 32-bit product of L_var1 and L_var2 (Word32) |
| */ |
| __inline Word32 Mpy_32(Word16 L_var1_hi, Word16 L_var1_lo, Word16 L_var2_hi, |
| Word16 L_var2_lo, Flag *pOverflow) |
| |
| { |
| |
| Word32 L_product; |
| Word32 L_sum; |
| Word32 product32; |
| |
| OSCL_UNUSED_ARG(pOverflow); |
| |
| __asm |
| { |
| SMULBB L_product, L_var1_hi, L_var2_hi |
| QDADD L_product, 0, L_product |
| SMULBB product32, L_var1_hi, L_var2_lo |
| } |
| product32 >>= 15; |
| __asm |
| { |
| QDADD L_sum, L_product, product32 |
| } |
| L_product = L_sum; |
| __asm |
| { |
| SMULBB product32, L_var1_lo, L_var2_hi |
| } |
| product32 >>= 15; |
| __asm |
| { |
| QDADD L_sum, L_product, product32 |
| } |
| return (L_sum); |
| } |
| |
| /* |
| ------------------------------------------------------------------------------ |
| FUNCTION NAME: Mpy_32_16 |
| ------------------------------------------------------------------------------ |
| INPUT AND OUTPUT DEFINITIONS |
| |
| Inputs: |
| L_var1_hi = most significant 16 bits of 32-bit input (Word16). |
| L_var1_lo = least significant 16 bits of 32-bit input (Word16). |
| var2 = 16-bit signed integer (Word16). |
| |
| pOverflow = pointer to overflow (Flag) |
| |
| Outputs: |
| pOverflow -> 1 if the 32 bit product operation resulted in overflow |
| |
| Returns: |
| product = 32-bit product of the 32-bit L_var1 and 16-bit var1 (Word32) |
| */ |
| __inline Word32 Mpy_32_16(Word16 L_var1_hi, |
| Word16 L_var1_lo, |
| Word16 var2, |
| Flag *pOverflow) |
| { |
| |
| Word32 L_product; |
| Word32 L_sum; |
| Word32 result; |
| |
| OSCL_UNUSED_ARG(pOverflow); |
| |
| __asm {SMULBB L_product, L_var1_hi, var2} |
| __asm {QDADD L_product, 0, L_product} |
| __asm {SMULBB result, L_var1_lo, var2} |
| result >>= 15; |
| __asm {QDADD L_sum, L_product, result} |
| return (L_sum); |
| } |
| |
| /* |
| ------------------------------------------------------------------------------ |
| FUNCTION NAME: mult |
| ------------------------------------------------------------------------------ |
| INPUT AND OUTPUT DEFINITIONS |
| |
| Inputs: |
| var1 = 16 bit short signed integer (Word16) whose value falls in |
| the range : 0xffff 8000 <= var1 <= 0x0000 7fff. |
| |
| var2 = 16 bit short signed integer (Word16) whose value falls in |
| the range : 0xffff 8000 <= var2 <= 0x0000 7fff. |
| |
| pOverflow = pointer to overflow (Flag) |
| |
| Outputs: |
| pOverflow -> 1 if the add operation resulted in overflow |
| |
| Returns: |
| product = 16-bit limited product of var1 and var2 (Word16) |
| */ |
| __inline Word16 mult(Word16 var1, Word16 var2, Flag *pOverflow) |
| { |
| Word32 product; |
| |
| OSCL_UNUSED_ARG(pOverflow); |
| |
| __asm |
| { |
| SMULBB product, var1, var2 |
| MOV product, product, ASR #15 |
| CMP product, 0x7FFF |
| MOVGE product, 0x7FFF |
| } |
| |
| return ((Word16) product); |
| } |
| |
| __inline Word32 amrnb_fxp_mac_16_by_16bb(Word32 L_var1, Word32 L_var2, Word32 L_var3) |
| { |
| Word32 result; |
| __asm |
| { |
| smlabb result, L_var1, L_var2, L_var3 |
| } |
| return result; |
| } |
| |
| __inline Word32 amrnb_fxp_msu_16_by_16bb(Word32 L_var1, Word32 L_var2, Word32 L_var3) |
| { |
| Word32 result; |
| __asm |
| { |
| rsb L_var1, L_var1, #0 |
| smlabb result, L_var1, L_var2, L_var3 |
| } |
| return result; |
| } |
| |
| |
| /*---------------------------------------------------------------------------- |
| ; END |
| ----------------------------------------------------------------------------*/ |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* BASIC_OP_ARM_V5_H */ |
