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File: gsm_dec.c
Original provenience: Jutta Degener and Carsten Bormann,
Technische Universitaet Berlin
2017-04-18:
- Annotated gsm_dec_main as entry-point for timing analysis
2016-03-07:
- Add generic TACLeBench header
- Split code into gsm.h, data.h, config.h, private.h, proto.h
- Remove code undefined through macros and unnecessay include guards
- Rename function 'decode' to 'gsm_decode_main'
- Add functions 'gsm_decode_init', 'gsm_decode_return'
- Remove line: /* lpc.c */
- Remove line: #undef P
2016-04-27:
- Rename benchmark to from 'gsm_decode' to 'gsm_dec'
- Remove unused content of proto.h and config.h
- Remove usages of prototype macros 'P' and 'GSM_P' and checks if standard
prototypes are availables: use standard prototypes
- Remove functions only defined for debugging purpose
- Remove block around "#ifndef GSM_TABLE_C", since 'GSM_TABLE_C' is defined,
remove define of 'GSM_TABLE_C'
- Define 'SASR' macro once, remove blocks if 'SASR' is not defined
- Remove variables 'f_fast' and 'f_verbose' (both set to 0). Consequently,
remove unused 'function gsm_option' and the defines 'GSM_OPT_VERBOSE' and
'GSM_OPT_FAST' only used inside 'gsm_option'
- Remove unused variables 'verbose' and 'fast' from 'struct gsm_state'
- Remove unused function declarations 'gsm_explode' and 'gsm_implode'
- Remove unused defines 'GSM_PATCHLEVEL', 'GSM_MINOR', and 'GSM_MAJOR'
- Remove irrelevant comment "// OK" in line calling function 'create'
- Remove unused variable 'd' of type 'word*' from 'gsm_dec_main'
- Remove unused parameter 'struct gsm_state * S' of function 'Gsm_RPE_Decoding'
- Remove block in function 'Gsm_Short_Term_Synthesis_Filter' that is compiled
when 'FAST' macro is defined (per default not activated)
- Replace macro 'FILTER' by its expanded value 'Short_term_synthesis_filtering'
in function 'Gsm_Short_Term_Synthesis_Filter'
- Remove unused 'int j' in function 'Short_term_synthesis_filtering'
- Make iteration variable 'i' in function 'create' type 'unsigned int' to avoid
compiler warnings
- Use rewritten Duff's device for WCET analysis, remove commented original
varinat, keep comment in code marking this change
- Remove unused variable 'temp_sat' of type 'longword' in function
'APCM_inverse_quantization'
- Remove unused parameter 'S' of type 'struct gsm_state*' in function
'Gsm_RPE_Decoding' and the respective calls of this function
- Remove unused function
'Gsm_Update_of_reconstructed_short_time_residual_signal'
- Remove code block activatable by defining 'USE_TABLE_MUL', since macro never
defined
- Rename global variable 'gsmstate' to 'gsm_dec_state'
- Remove lines with #undef GSM_P
- Update function 'create': add void parameter to defintion
- Introduce 'gsm_dec_state_ptr' that points to 'gsm_dec_state', which is
initialized in function 'create'. This is required to maintain the void-void
signature for 'gsm_dec_init' and 'gsm_dec_main'.
- Remove unused commented version of 'GSM_MULT_R'
- Move macros 'GSM_MULT|ADD|SUB' into separate header
- Give include guards unique names: prefix with 'GSM_DEC_'
- Remove unused functions 'gsm_div', 'gsm_add', 'gsm_mult', 'gsm_mult_r',
'gsm_abs', 'gsm_L_mult', 'gsm_L_add', 'gsm_L_sub', 'gsm_norm' (and array
'bitoff' used in this function), 'gsm_L_asl', 'gsm_L_asr'
- Rename 'Gsm_Short_Term_Synthesis_Filter' to
'gsm_dec_Short_Term_Synthesis_Filter'
- Rename 'Gsm_RPE_Decoding' to 'gsm_dec_RPE_Decoding'
- Rename 'Gsm_Long_Term_Synthesis_Filtering' to
'gsm_dec_Long_Term_Synthesis_Filtering'
- Rename 'Gsm_Decoder' to 'gsm_dec_Decoder'
- Remove unused function declaration of 'decode'
- Prefix all global symbols with benchmark name
- Store return value of in introduced variable 'gsm_dec_result', which is
volatile to avoid optimizations on this variable
- Avoid constant propagation through addition with volatile variable on each
element of the 'gsm_dec_state' structure
2016-05-10:
- Change coefficients for variable 'B' of 'STEP' macro in function
'gsm_dec_Decoding_of_the_coded_Log_Area_Ratios' from negative to positive,
since bit shifts of signed values are undefined
- Fix comment why variable 'long ltmp' ist required in function
'gsm_dec_Decoding_of_the_coded_Log_Area_Ratios'
- Apply code formatting with with astyle
- Manual text formattings: removal of empty lines in function prototypes,
- Indent all multi-line block comments by two spaces
2016-05-10:
- Remove 'static' declaration of global variables and functions
- Remove unused global variables 'gsm_DLB', 'gsm_INVA', 'gsm_MAC', 'gsm_MIC',
'gsm_A', 'gsm_B', 'gsm_H'
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