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Diffstat (limited to 'third_party/g7221/common/stl-files/basop32.h')
| -rw-r--r-- | third_party/g7221/common/stl-files/basop32.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/third_party/g7221/common/stl-files/basop32.h b/third_party/g7221/common/stl-files/basop32.h new file mode 100644 index 00000000..7b096454 --- /dev/null +++ b/third_party/g7221/common/stl-files/basop32.h @@ -0,0 +1,111 @@ +/* + =========================================================================== + File: BASOP.H v.1.1 - 05.Jul.2000 + =========================================================================== + + ITU-T STL BASIC OPERATORS + + GLOBAL FUNCTION PROTOTYPES + + History: + 26.Jan.00 v1.0 Incorporated to the STL from updated G.723.1/G.729 + basic operator library (based on basic_op.h) and + G.723.1's basop.h. + 05.Jul.00 v1.1 Added 32-bit shiftless mult/mac/msub operators + ============================================================================ +*/ + +#ifndef BASOP_H_DEFINED +#define BASOP_H_DEFINED 110 + +/*___________________________________________________________________________ + | | + | Constants and Globals | + | | + | $Id $ + |___________________________________________________________________________| +*/ + +extern Flag Overflow; +extern Flag Carry; + +#define MAX_32 (Word32)0x7fffffffL +#define MIN_32 (Word32)0x80000000L + +#define MAX_16 (Word16)0x7fff +#define MIN_16 (Word16)0x8000 + +#define UMAX_32 (Word32)0xffffffffL +#define UMIN_32 (Word32)0x00000000L + +/*___________________________________________________________________________ + | | + | Prototypes for basic arithmetic operators | + |___________________________________________________________________________| +*/ + +Word16 add (Word16 var1, Word16 var2); /* Short add, 1 */ +Word16 sub (Word16 var1, Word16 var2); /* Short sub, 1 */ +Word16 abs_s (Word16 var1); /* Short abs, 1 */ +Word16 shl (Word16 var1, Word16 var2); /* Short shift left, 1 */ +Word16 shr (Word16 var1, Word16 var2); /* Short shift right, 1 */ +Word16 mult (Word16 var1, Word16 var2); /* Short mult, 1 */ +Word32 L_mult (Word16 var1, Word16 var2); /* Long mult, 1 */ +Word16 negate (Word16 var1); /* Short negate, 1 */ +Word16 extract_h (Word32 L_var1); /* Extract high, 1 */ +Word16 extract_l (Word32 L_var1); /* Extract low, 1 */ +Word16 round (Word32 L_var1); /* Round, 1 */ +Word32 L_mac (Word32 L_var3, Word16 var1, Word16 var2); /* Mac, 1 */ +Word32 L_msu (Word32 L_var3, Word16 var1, Word16 var2); /* Msu, 1 */ +Word32 L_macNs (Word32 L_var3, Word16 var1, Word16 var2); /* Mac without + sat, 1 */ +Word32 L_msuNs (Word32 L_var3, Word16 var1, Word16 var2); /* Msu without + sat, 1 */ +Word32 L_add (Word32 L_var1, Word32 L_var2); /* Long add, 2 */ +Word32 L_sub (Word32 L_var1, Word32 L_var2); /* Long sub, 2 */ +Word32 L_add_c (Word32 L_var1, Word32 L_var2); /* Long add with c, 2 */ +Word32 L_sub_c (Word32 L_var1, Word32 L_var2); /* Long sub with c, 2 */ +Word32 L_negate (Word32 L_var1); /* Long negate, 2 */ +Word16 mult_r (Word16 var1, Word16 var2); /* Mult with round, 2 */ +Word32 L_shl (Word32 L_var1, Word16 var2); /* Long shift left, 2 */ +Word32 L_shr (Word32 L_var1, Word16 var2); /* Long shift right, 2*/ +Word16 shr_r (Word16 var1, Word16 var2); /* Shift right with + round, 2 */ +Word16 mac_r (Word32 L_var3, Word16 var1, Word16 var2); /* Mac with + rounding,2 */ +Word16 msu_r (Word32 L_var3, Word16 var1, Word16 var2); /* Msu with + rounding,2 */ +Word32 L_deposit_h (Word16 var1); /* 16 bit var1 -> MSB, 2 */ +Word32 L_deposit_l (Word16 var1); /* 16 bit var1 -> LSB, 2 */ + +Word32 L_shr_r (Word32 L_var1, Word16 var2); /* Long shift right with + round, 3 */ +Word32 L_abs (Word32 L_var1); /* Long abs, 3 */ +Word32 L_sat (Word32 L_var1); /* Long saturation, 4 */ +Word16 norm_s (Word16 var1); /* Short norm, 15 */ +Word16 div_s (Word16 var1, Word16 var2); /* Short division, 18 */ +Word16 norm_l (Word32 L_var1); /* Long norm, 30 */ + +/* + Additional G.723.1 operators +*/ +Word32 L_mls( Word32, Word16 ) ; /* Weight FFS; currently assigned 1 */ +Word16 div_l( Word32, Word16 ) ; /* Weight FFS; currently assigned 1 */ +Word16 i_mult(Word16 a, Word16 b); /* Weight FFS; currently assigned 1 */ + +/* + New shiftless operators, not used in G.729/G.723.1 +*/ +Word32 L_mult0(Word16 v1, Word16 v2); /* 32-bit Multiply w/o shift 1 */ +Word32 L_mac0(Word32 L_v3, Word16 v1, Word16 v2); /* 32-bit Mac w/o shift 1 */ +Word32 L_msu0(Word32 L_v3, Word16 v1, Word16 v2); /* 32-bit Msu w/o shift 1 */ + +/* + Additional G.722.1 operators +*/ +UWord32 LU_shl (UWord32 L_var1, Word16 var2); +UWord32 LU_shr (UWord32 L_var1, Word16 var2); +#endif /* BASOP_H_DEFINED */ + + +/* ************************* END OF BASIC_OP.H ************************* */ |