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- /*___________________________________________________________________________
- | |
- | 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
- /*___________________________________________________________________________
- | |
- | Prototypes for basic arithmetic operators |
- |___________________________________________________________________________|
- */
- Word16 add_ex (Word16 var1, Word16 var2); /* Short add, 1 */
- Word16 sub_ex (Word16 var1, Word16 var2); /* Short sub_ex, 1 */
- Word16 abs_s_ex (Word16 var1); /* Short abs, 1 */
- Word16 shl_ex (Word16 var1, Word16 var2); /* Short shift left, 1 */
- Word16 shr_ex (Word16 var1, Word16 var2); /* Short shift right, 1 */
- Word16 mult_ex (Word16 var1, Word16 var2); /* Short mult_ex, 1 */
- Word32 L_mult_ex (Word16 var1, Word16 var2); /* Long mult_ex, 1 */
- Word16 negate_ex (Word16 var1); /* Short negate_ex, 1 */
- Word16 extract_h_ex (Word32 L_var1); /* Extract high, 1 */
- Word16 extract_l_ex (Word32 L_var1); /* Extract low, 1 */
- Word16 round_ex (Word32 L_var1); /* Round, 1 */
- Word32 L_mac_ex (Word32 L_var3, Word16 var1, Word16 var2); /* Mac, 1 */
- Word32 L_msu_ex (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_ex (Word32 L_var1, Word32 L_var2); /* Long add, 2 */
- Word32 L_sub_ex (Word32 L_var1, Word32 L_var2); /* Long sub_ex, 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_ex with c, 2 */
- Word32 L_negate_ex (Word32 L_var1); /* Long negate_ex, 2 */
- Word16 mult_r_ex (Word16 var1, Word16 var2); /* Mult with round, 2 */
- Word32 L_shl_ex (Word32 L_var1, Word16 var2); /* Long shift left, 2 */
- Word32 L_shr_ex (Word32 L_var1, Word16 var2); /* Long shift right, 2*/
- Word16 shr_r_ex (Word16 var1, Word16 var2); /* Shift right with
- round, 2 */
- Word16 mac_r_ex (Word32 L_var3, Word16 var1, Word16 var2); /* Mac with
- rounding,2 */
- Word16 msu_r_ex (Word32 L_var3, Word16 var1, Word16 var2); /* Msu with
- rounding,2 */
- Word32 L_deposit_h_ex (Word16 var1); /* 16 bit var1 -> MSB, 2 */
- Word32 L_deposit_l_ex (Word16 var1); /* 16 bit var1 -> LSB, 2 */
- Word32 L_shr_r_ex (Word32 L_var1, Word16 var2); /* Long shift right with
- round, 3 */
- Word32 L_abs_ex (Word32 L_var1); /* Long abs, 3 */
- Word32 L_sat (Word32 L_var1); /* Long saturation, 4 */
- Word16 norm_s_ex (Word16 var1); /* Short norm, 15 */
- Word16 div_s (Word16 var1, Word16 var2); /* Short division, 18 */
- Word16 norm_l_ex (Word32 L_var1); /* Long norm, 30 */
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