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    /* Conversion routines derived from code by guido@sienanet.it */
    
    #ifndef ASTERISK_MSGSM_H
    #define ASTERISK_MSGSM_H
    
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    #define GSM_MAGIC 0xD
    
    
    #ifndef GSM_H
    
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    typedef unsigned char           gsm_byte;
    
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    typedef unsigned char           wav_byte;
    typedef unsigned int			uword;
    
    #define readGSM_33(c1) { \
    
    		gsm_byte *__c = (c1); \
            LARc[0]  = (*__c++ & 0xF) << 2;           /* 1 */ \
            LARc[0] |= (*__c >> 6) & 0x3; \
            LARc[1]  = *__c++ & 0x3F; \
            LARc[2]  = (*__c >> 3) & 0x1F; \
            LARc[3]  = (*__c++ & 0x7) << 2; \
            LARc[3] |= (*__c >> 6) & 0x3; \
            LARc[4]  = (*__c >> 2) & 0xF; \
            LARc[5]  = (*__c++ & 0x3) << 2; \
            LARc[5] |= (*__c >> 6) & 0x3; \
            LARc[6]  = (*__c >> 3) & 0x7; \
            LARc[7]  = *__c++ & 0x7; \
            Nc[0]  = (*__c >> 1) & 0x7F; \
            bc[0]  = (*__c++ & 0x1) << 1; \
            bc[0] |= (*__c >> 7) & 0x1; \
            Mc[0]  = (*__c >> 5) & 0x3; \
            xmaxc[0]  = (*__c++ & 0x1F) << 1; \
            xmaxc[0] |= (*__c >> 7) & 0x1; \
            xmc[0]  = (*__c >> 4) & 0x7; \
            xmc[1]  = (*__c >> 1) & 0x7; \
            xmc[2]  = (*__c++ & 0x1) << 2; \
            xmc[2] |= (*__c >> 6) & 0x3; \
            xmc[3]  = (*__c >> 3) & 0x7; \
            xmc[4]  = *__c++ & 0x7; \
            xmc[5]  = (*__c >> 5) & 0x7; \
            xmc[6]  = (*__c >> 2) & 0x7; \
            xmc[7]  = (*__c++ & 0x3) << 1;            /* 10 */ \
            xmc[7] |= (*__c >> 7) & 0x1; \
            xmc[8]  = (*__c >> 4) & 0x7; \
            xmc[9]  = (*__c >> 1) & 0x7; \
            xmc[10]  = (*__c++ & 0x1) << 2; \
            xmc[10] |= (*__c >> 6) & 0x3; \
            xmc[11]  = (*__c >> 3) & 0x7; \
            xmc[12]  = *__c++ & 0x7; \
            Nc[1]  = (*__c >> 1) & 0x7F; \
            bc[1]  = (*__c++ & 0x1) << 1; \
            bc[1] |= (*__c >> 7) & 0x1; \
            Mc[1]  = (*__c >> 5) & 0x3; \
            xmaxc[1]  = (*__c++ & 0x1F) << 1; \
            xmaxc[1] |= (*__c >> 7) & 0x1; \
            xmc[13]  = (*__c >> 4) & 0x7; \
            xmc[14]  = (*__c >> 1) & 0x7; \
            xmc[15]  = (*__c++ & 0x1) << 2; \
            xmc[15] |= (*__c >> 6) & 0x3; \
            xmc[16]  = (*__c >> 3) & 0x7; \
            xmc[17]  = *__c++ & 0x7; \
            xmc[18]  = (*__c >> 5) & 0x7; \
            xmc[19]  = (*__c >> 2) & 0x7; \
            xmc[20]  = (*__c++ & 0x3) << 1; \
            xmc[20] |= (*__c >> 7) & 0x1; \
            xmc[21]  = (*__c >> 4) & 0x7; \
            xmc[22]  = (*__c >> 1) & 0x7; \
            xmc[23]  = (*__c++ & 0x1) << 2; \
            xmc[23] |= (*__c >> 6) & 0x3; \
            xmc[24]  = (*__c >> 3) & 0x7; \
            xmc[25]  = *__c++ & 0x7; \
            Nc[2]  = (*__c >> 1) & 0x7F; \
            bc[2]  = (*__c++ & 0x1) << 1;             /* 20 */ \
            bc[2] |= (*__c >> 7) & 0x1; \
            Mc[2]  = (*__c >> 5) & 0x3; \
            xmaxc[2]  = (*__c++ & 0x1F) << 1; \
            xmaxc[2] |= (*__c >> 7) & 0x1; \
            xmc[26]  = (*__c >> 4) & 0x7; \
            xmc[27]  = (*__c >> 1) & 0x7; \
            xmc[28]  = (*__c++ & 0x1) << 2; \
            xmc[28] |= (*__c >> 6) & 0x3; \
            xmc[29]  = (*__c >> 3) & 0x7; \
            xmc[30]  = *__c++ & 0x7; \
            xmc[31]  = (*__c >> 5) & 0x7; \
            xmc[32]  = (*__c >> 2) & 0x7; \
            xmc[33]  = (*__c++ & 0x3) << 1; \
            xmc[33] |= (*__c >> 7) & 0x1; \
            xmc[34]  = (*__c >> 4) & 0x7; \
            xmc[35]  = (*__c >> 1) & 0x7; \
            xmc[36]  = (*__c++ & 0x1) << 2; \
            xmc[36] |= (*__c >> 6) & 0x3; \
            xmc[37]  = (*__c >> 3) & 0x7; \
            xmc[38]  = *__c++ & 0x7; \
            Nc[3]  = (*__c >> 1) & 0x7F; \
            bc[3]  = (*__c++ & 0x1) << 1; \
            bc[3] |= (*__c >> 7) & 0x1; \
            Mc[3]  = (*__c >> 5) & 0x3; \
            xmaxc[3]  = (*__c++ & 0x1F) << 1; \
            xmaxc[3] |= (*__c >> 7) & 0x1; \
            xmc[39]  = (*__c >> 4) & 0x7; \
            xmc[40]  = (*__c >> 1) & 0x7; \
            xmc[41]  = (*__c++ & 0x1) << 2; \
            xmc[41] |= (*__c >> 6) & 0x3; \
            xmc[42]  = (*__c >> 3) & 0x7; \
            xmc[43]  = *__c++ & 0x7;                  /* 30  */ \
            xmc[44]  = (*__c >> 5) & 0x7; \
            xmc[45]  = (*__c >> 2) & 0x7; \
            xmc[46]  = (*__c++ & 0x3) << 1; \
            xmc[46] |= (*__c >> 7) & 0x1; \
            xmc[47]  = (*__c >> 4) & 0x7; \
            xmc[48]  = (*__c >> 1) & 0x7; \
            xmc[49]  = (*__c++ & 0x1) << 2; \
            xmc[49] |= (*__c >> 6) & 0x3; \
            xmc[50]  = (*__c >> 3) & 0x7; \
            xmc[51]  = *__c & 0x7;                    /* 33 */ \
    
    static inline void conv66(gsm_byte * d, wav_byte * c) {
    
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    	gsm_byte frame_chain;
        unsigned int sr;
    	unsigned int    LARc[8], Nc[4], Mc[4], bc[4], xmaxc[4], xmc[13*4];
    
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    	readGSM_33(d);
    	sr = 0;
    	sr = (sr >> 6) | (LARc[0] << 10);
    	sr = (sr >> 6) | (LARc[1] << 10);
    	*c++ = sr >> 4;
    	sr = (sr >> 5) | (LARc[2] << 11);
    	*c++ = sr >> 7;
    	sr = (sr >> 5) | (LARc[3] << 11);
    	sr = (sr >> 4) | (LARc[4] << 12);
    	*c++ = sr >> 6;
    	sr = (sr >> 4) | (LARc[5] << 12);
    	sr = (sr >> 3) | (LARc[6] << 13);
    	*c++ = sr >> 7;
    	sr = (sr >> 3) | (LARc[7] << 13);
    	sr = (sr >> 7) | (Nc[0] << 9);
    	*c++ = sr >> 5;
    	sr = (sr >> 2) | (bc[0] << 14);
    	sr = (sr >> 2) | (Mc[0] << 14);
    	sr = (sr >> 6) | (xmaxc[0] << 10);
    	*c++ = sr >> 3;
    	sr = (sr >> 3 )|( xmc[0] << 13);
    	*c++ = sr >> 8;
    	sr = (sr >> 3 )|( xmc[1] << 13);
    	sr = (sr >> 3 )|( xmc[2] << 13);
        sr = (sr >> 3 )|( xmc[3] << 13);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[4] << 13);
        sr = (sr >> 3 )|( xmc[5] << 13);
        sr = (sr >> 3 )|( xmc[6] << 13);
        *c++ = sr >> 6;
        sr = (sr >> 3 )|( xmc[7] << 13);
        sr = (sr >> 3 )|( xmc[8] << 13);
        *c++ = sr >> 8;
        sr = (sr >> 3 )|( xmc[9] << 13);
        sr = (sr >> 3 )|( xmc[10] << 13);
        sr = (sr >> 3 )|( xmc[11] << 13);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[12] << 13);
        sr = (sr >> 7 )|( Nc[1] << 9);
        *c++ = sr >> 5;
        sr = (sr >> 2 )|( bc[1] << 14);
        sr = (sr >> 2 )|( Mc[1] << 14);
        sr = (sr >> 6 )|( xmaxc[1] << 10);
        *c++ = sr >> 3;
        sr = (sr >> 3 )|( xmc[13] << 13);
        *c++ = sr >> 8;
        sr = (sr >> 3 )|( xmc[14] << 13);
        sr = (sr >> 3 )|( xmc[15] << 13);
        sr = (sr >> 3 )|( xmc[16] << 13);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[17] << 13);
        sr = (sr >> 3 )|( xmc[18] << 13);
        sr = (sr >> 3 )|( xmc[19] << 13);
        *c++ = sr >> 6;
        sr = (sr >> 3 )|( xmc[20] << 13);
        sr = (sr >> 3 )|( xmc[21] << 13);
        *c++ = sr >> 8;
        sr = (sr >> 3 )|( xmc[22] << 13);
        sr = (sr >> 3 )|( xmc[23] << 13);
        sr = (sr >> 3 )|( xmc[24] << 13);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[25] << 13);
        sr = (sr >> 7 )|( Nc[2] << 9);
        *c++ = sr >> 5;
        sr = (sr >> 2 )|( bc[2] << 14);
        sr = (sr >> 2 )|( Mc[2] << 14);
        sr = (sr >> 6 )|( xmaxc[2] << 10);
        *c++ = sr >> 3;
        sr = (sr >> 3 )|( xmc[26] << 13);
        *c++ = sr >> 8;
        sr = (sr >> 3 )|( xmc[27] << 13);
        sr = (sr >> 3 )|( xmc[28] << 13);
        sr = (sr >> 3 )|( xmc[29] << 13);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[30] << 13);
        sr = (sr >> 3 )|( xmc[31] << 13);
        sr = (sr >> 3 )|( xmc[32] << 13);
        *c++ = sr >> 6;
        sr = (sr >> 3 )|( xmc[33] << 13);
        sr = (sr >> 3 )|( xmc[34] << 13);
        *c++ = sr >> 8;
        sr = (sr >> 3 )|( xmc[35] << 13);
        sr = (sr >> 3 )|( xmc[36] << 13);
        sr = (sr >> 3 )|( xmc[37] << 13);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[38] << 13);
        sr = (sr >> 7 )|( Nc[3] << 9);
        *c++ = sr >> 5;
        sr = (sr >> 2 )|( bc[3] << 14);
        sr = (sr >> 2 )|( Mc[3] << 14);
        sr = (sr >> 6 )|( xmaxc[3] << 10);
        *c++ = sr >> 3;
        sr = (sr >> 3 )|( xmc[39] << 13);
        *c++ = sr >> 8;
        sr = (sr >> 3 )|( xmc[40] << 13);
        sr = (sr >> 3 )|( xmc[41] << 13);
        sr = (sr >> 3 )|( xmc[42] << 13);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[43] << 13);
        sr = (sr >> 3 )|( xmc[44] << 13);
        sr = (sr >> 3 )|( xmc[45] << 13);
        *c++ = sr >> 6;
        sr = (sr >> 3 )|( xmc[46] << 13);
        sr = (sr >> 3 )|( xmc[47] << 13);
        *c++ = sr >> 8;
        sr = (sr >> 3 )|( xmc[48] << 13);
        sr = (sr >> 3 )|( xmc[49] << 13);
        sr = (sr >> 3 )|( xmc[50] << 13);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[51] << 13);
        sr = sr >> 4;
        *c = sr >> 8;
        frame_chain = *c;
    
        readGSM_33(d+33); /* puts all the parameters into LARc etc. */
    
    /*                       sr = (sr >> 4 )|( s->frame_chain << 12); */
    
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        sr = (sr >> 4 )|( frame_chain << 12);
    
        sr = (sr >> 6 )|( LARc[0] << 10);
        *c++ = sr >> 6;
        sr = (sr >> 6 )|( LARc[1] << 10);
        *c++ = sr >> 8;
        sr = (sr >> 5 )|( LARc[2] << 11);
        sr = (sr >> 5 )|( LARc[3] << 11);
        *c++ = sr >> 6;
        sr = (sr >> 4 )|( LARc[4] << 12);
        sr = (sr >> 4 )|( LARc[5] << 12);
        *c++ = sr >> 6;
        sr = (sr >> 3 )|( LARc[6] << 13);
        sr = (sr >> 3 )|( LARc[7] << 13);
        *c++ = sr >> 8;
        sr = (sr >> 7 )|( Nc[0] << 9);
        sr = (sr >> 2 )|( bc[0] << 14);
        *c++ = sr >> 7;
        sr = (sr >> 2 )|( Mc[0] << 14);
        sr = (sr >> 6 )|( xmaxc[0] << 10);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[0] << 13);
        sr = (sr >> 3 )|( xmc[1] << 13);
        sr = (sr >> 3 )|( xmc[2] << 13);
        *c++ = sr >> 6;
        sr = (sr >> 3 )|( xmc[3] << 13);
        sr = (sr >> 3 )|( xmc[4] << 13);
        *c++ = sr >> 8;
        sr = (sr >> 3 )|( xmc[5] << 13);
        sr = (sr >> 3 )|( xmc[6] << 13);
        sr = (sr >> 3 )|( xmc[7] << 13);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[8] << 13);
        sr = (sr >> 3 )|( xmc[9] << 13);
        sr = (sr >> 3 )|( xmc[10] << 13);
        *c++ = sr >> 6;
        sr = (sr >> 3 )|( xmc[11] << 13);
        sr = (sr >> 3 )|( xmc[12] << 13);
        *c++ = sr >> 8;
        sr = (sr >> 7 )|( Nc[1] << 9);
        sr = (sr >> 2 )|( bc[1] << 14);
        *c++ = sr >> 7;
        sr = (sr >> 2 )|( Mc[1] << 14);
        sr = (sr >> 6 )|( xmaxc[1] << 10);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[13] << 13);
        sr = (sr >> 3 )|( xmc[14] << 13);
        sr = (sr >> 3 )|( xmc[15] << 13);
        *c++ = sr >> 6;
        sr = (sr >> 3 )|( xmc[16] << 13);
        sr = (sr >> 3 )|( xmc[17] << 13);
        *c++ = sr >> 8;
        sr = (sr >> 3 )|( xmc[18] << 13);
        sr = (sr >> 3 )|( xmc[19] << 13);
        sr = (sr >> 3 )|( xmc[20] << 13);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[21] << 13);
        sr = (sr >> 3 )|( xmc[22] << 13);
        sr = (sr >> 3 )|( xmc[23] << 13);
        *c++ = sr >> 6;
        sr = (sr >> 3 )|( xmc[24] << 13);
        sr = (sr >> 3 )|( xmc[25] << 13);
        *c++ = sr >> 8;
        sr = (sr >> 7 )|( Nc[2] << 9);
        sr = (sr >> 2 )|( bc[2] << 14);
        *c++ = sr >> 7;
        sr = (sr >> 2 )|( Mc[2] << 14);
        sr = (sr >> 6 )|( xmaxc[2] << 10);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[26] << 13);
        sr = (sr >> 3 )|( xmc[27] << 13);
        sr = (sr >> 3 )|( xmc[28] << 13);
        *c++ = sr >> 6;
        sr = (sr >> 3 )|( xmc[29] << 13);
        sr = (sr >> 3 )|( xmc[30] << 13);
        *c++ = sr >> 8;
        sr = (sr >> 3 )|( xmc[31] << 13);
        sr = (sr >> 3 )|( xmc[32] << 13);
        sr = (sr >> 3 )|( xmc[33] << 13);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[34] << 13);
        sr = (sr >> 3 )|( xmc[35] << 13);
        sr = (sr >> 3 )|( xmc[36] << 13);
        *c++ = sr >> 6;
        sr = (sr >> 3 )|( xmc[37] << 13);
        sr = (sr >> 3 )|( xmc[38] << 13);
        *c++ = sr >> 8;
        sr = (sr >> 7 )|( Nc[3] << 9);
        sr = (sr >> 2 )|( bc[3] << 14);
        *c++ = sr >> 7;
        sr = (sr >> 2 )|( Mc[3] << 14);
        sr = (sr >> 6 )|( xmaxc[3] << 10);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[39] << 13);
        sr = (sr >> 3 )|( xmc[40] << 13);
        sr = (sr >> 3 )|( xmc[41] << 13);
        *c++ = sr >> 6;
        sr = (sr >> 3 )|( xmc[42] << 13);
        sr = (sr >> 3 )|( xmc[43] << 13);
        *c++ = sr >> 8;
        sr = (sr >> 3 )|( xmc[44] << 13);
        sr = (sr >> 3 )|( xmc[45] << 13);
        sr = (sr >> 3 )|( xmc[46] << 13);
        *c++ = sr >> 7;
        sr = (sr >> 3 )|( xmc[47] << 13);
        sr = (sr >> 3 )|( xmc[48] << 13);
        sr = (sr >> 3 )|( xmc[49] << 13);
        *c++ = sr >> 6;
        sr = (sr >> 3 )|( xmc[50] << 13);
        sr = (sr >> 3 )|( xmc[51] << 13);
        *c++ = sr >> 8;
    
    }
    
    #define writeGSM_33(c1) { \
    
    				gsm_byte *__c = (c1); \
                    *__c++ =   ((GSM_MAGIC & 0xF) << 4)               /* 1 */ \
    
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                               | ((LARc[0] >> 2) & 0xF); \
    
                    *__c++ =   ((LARc[0] & 0x3) << 6) \
    
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                               | (LARc[1] & 0x3F); \
    
                    *__c++ =   ((LARc[2] & 0x1F) << 3) \
    
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                               | ((LARc[3] >> 2) & 0x7); \
    
                    *__c++ =   ((LARc[3] & 0x3) << 6) \
    
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                           | ((LARc[4] & 0xF) << 2) \
                           | ((LARc[5] >> 2) & 0x3); \
    
                    *__c++ =   ((LARc[5] & 0x3) << 6) \
    
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                           | ((LARc[6] & 0x7) << 3) \
                           | (LARc[7] & 0x7);   \
    
                    *__c++ =   ((Nc[0] & 0x7F) << 1) \
    
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                           | ((bc[0] >> 1) & 0x1); \
    
                    *__c++ =   ((bc[0] & 0x1) << 7) \
    
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                           | ((Mc[0] & 0x3) << 5) \
                           | ((xmaxc[0] >> 1) & 0x1F); \
    
                    *__c++ =   ((xmaxc[0] & 0x1) << 7) \
    
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                           | ((xmc[0] & 0x7) << 4) \
                           | ((xmc[1] & 0x7) << 1) \
                               | ((xmc[2] >> 2) & 0x1); \
    
                    *__c++ =   ((xmc[2] & 0x3) << 6) \
    
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                           | ((xmc[3] & 0x7) << 3) \
                           | (xmc[4] & 0x7); \
    
                    *__c++ =   ((xmc[5] & 0x7) << 5)                  /* 10 */ \
    
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                           | ((xmc[6] & 0x7) << 2) \
                           | ((xmc[7] >> 1) & 0x3); \
    
                    *__c++ =   ((xmc[7] & 0x1) << 7) \
    
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                           | ((xmc[8] & 0x7) << 4) \
                           | ((xmc[9] & 0x7) << 1) \
                           | ((xmc[10] >> 2) & 0x1); \
    
                    *__c++ =   ((xmc[10] & 0x3) << 6) \
    
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                           | ((xmc[11] & 0x7) << 3) \
                           | (xmc[12] & 0x7); \
    
                    *__c++ =   ((Nc[1] & 0x7F) << 1) \
    
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                           | ((bc[1] >> 1) & 0x1); \
    
                    *__c++ =   ((bc[1] & 0x1) << 7) \
    
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                           | ((Mc[1] & 0x3) << 5) \
                           | ((xmaxc[1] >> 1) & 0x1F);  \
    
                    *__c++ =   ((xmaxc[1] & 0x1) << 7) \
    
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                           | ((xmc[13] & 0x7) << 4) \
                               | ((xmc[14] & 0x7) << 1) \
                           | ((xmc[15] >> 2) & 0x1); \
    
                    *__c++ =   ((xmc[15] & 0x3) << 6) \
    
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                           | ((xmc[16] & 0x7) << 3) \
                           | (xmc[17] & 0x7); \
    
                    *__c++ =   ((xmc[18] & 0x7) << 5) \
    
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                           | ((xmc[19] & 0x7) << 2) \
                           | ((xmc[20] >> 1) & 0x3); \
    
                    *__c++ =   ((xmc[20] & 0x1) << 7) \
    
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                           | ((xmc[21] & 0x7) << 4) \
                           | ((xmc[22] & 0x7) << 1) \
                               | ((xmc[23] >> 2) & 0x1); \
    
                    *__c++ =   ((xmc[23] & 0x3) << 6) \
    
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                           | ((xmc[24] & 0x7) << 3) \
                               | (xmc[25] & 0x7); \
    
                    *__c++ =   ((Nc[2] & 0x7F) << 1)                  /* 20 */ \
    
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                           | ((bc[2] >> 1) & 0x1); \
    
                    *__c++ =   ((bc[2] & 0x1) << 7) \
    
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                           | ((Mc[2] & 0x3) << 5) \
                           | ((xmaxc[2] >> 1) & 0x1F); \
    
                    *__c++ =   ((xmaxc[2] & 0x1) << 7)   \
    
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                           | ((xmc[26] & 0x7) << 4) \
                           | ((xmc[27] & 0x7) << 1) \
                           | ((xmc[28] >> 2) & 0x1); \
    
                    *__c++ =   ((xmc[28] & 0x3) << 6) \
    
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                           | ((xmc[29] & 0x7) << 3) \
                           | (xmc[30] & 0x7); \
    
                    *__c++ =   ((xmc[31] & 0x7) << 5) \
    
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                           | ((xmc[32] & 0x7) << 2) \
                           | ((xmc[33] >> 1) & 0x3); \
    
                    *__c++ =   ((xmc[33] & 0x1) << 7) \
    
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                           | ((xmc[34] & 0x7) << 4) \
                           | ((xmc[35] & 0x7) << 1) \
                           | ((xmc[36] >> 2) & 0x1); \
    
                    *__c++ =   ((xmc[36] & 0x3) << 6) \
    
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                               | ((xmc[37] & 0x7) << 3) \
                           | (xmc[38] & 0x7); \
    
                    *__c++ =   ((Nc[3] & 0x7F) << 1) \
    
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                           | ((bc[3] >> 1) & 0x1); \
    
                    *__c++ =   ((bc[3] & 0x1) << 7)  \
    
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                           | ((Mc[3] & 0x3) << 5) \
                           | ((xmaxc[3] >> 1) & 0x1F); \
    
                    *__c++ =   ((xmaxc[3] & 0x1) << 7) \
    
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                           | ((xmc[39] & 0x7) << 4) \
                           | ((xmc[40] & 0x7) << 1) \
                           | ((xmc[41] >> 2) & 0x1); \
    
                    *__c++ =   ((xmc[41] & 0x3) << 6)                 /* 30 */ \
    
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                           | ((xmc[42] & 0x7) << 3) \
                           | (xmc[43] & 0x7); \
    
                    *__c++ =   ((xmc[44] & 0x7) << 5) \
    
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                           | ((xmc[45] & 0x7) << 2) \
                           | ((xmc[46] >> 1) & 0x3); \
    
                    *__c++ =   ((xmc[46] & 0x1) << 7) \
    
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                           | ((xmc[47] & 0x7) << 4) \
                           | ((xmc[48] & 0x7) << 1) \
                           | ((xmc[49] >> 2) & 0x1); \
    
                    *__c++ =   ((xmc[49] & 0x3) << 6) \
    
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                           | ((xmc[50] & 0x7) << 3) \
                               | (xmc[51] & 0x7); \
    }
    
    
    static inline void conv65( wav_byte * c, gsm_byte * d){
    
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                    unsigned int sr = 0;
                    unsigned int frame_chain;
    
    		unsigned int LARc[8], Nc[4], Mc[4], bc[4], xmaxc[4];
    		/* silence bogus compiler warning */
    		unsigned int xmc[13*4] = { 0, };
    
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                            sr = *c++;
                            LARc[0] = sr & 0x3f;  sr >>= 6;
                            sr |= (uword)*c++ << 2;
                            LARc[1] = sr & 0x3f;  sr >>= 6;
                            sr |= (uword)*c++ << 4;
                            LARc[2] = sr & 0x1f;  sr >>= 5;
                            LARc[3] = sr & 0x1f;  sr >>= 5;
                            sr |= (uword)*c++ << 2;
                            LARc[4] = sr & 0xf;  sr >>= 4;
                            LARc[5] = sr & 0xf;  sr >>= 4;
                            sr |= (uword)*c++ << 2;                 /* 5 */
                            LARc[6] = sr & 0x7;  sr >>= 3;
                            LARc[7] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 4;
                            Nc[0] = sr & 0x7f;  sr >>= 7;
                            bc[0] = sr & 0x3;  sr >>= 2;
                            Mc[0] = sr & 0x3;  sr >>= 2;
                            sr |= (uword)*c++ << 1;
                            xmaxc[0] = sr & 0x3f;  sr >>= 6;
                            xmc[0] = sr & 0x7;  sr >>= 3;
                            sr = *c++;
                            xmc[1] = sr & 0x7;  sr >>= 3;
                            xmc[2] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 2;
                            xmc[3] = sr & 0x7;  sr >>= 3;
                            xmc[4] = sr & 0x7;  sr >>= 3;
                            xmc[5] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 1;                 /* 10 */
                            xmc[6] = sr & 0x7;  sr >>= 3;
                            xmc[7] = sr & 0x7;  sr >>= 3;
                            xmc[8] = sr & 0x7;  sr >>= 3;
                            sr = *c++;
                            xmc[9] = sr & 0x7;  sr >>= 3;
                            xmc[10] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 2;
                            xmc[11] = sr & 0x7;  sr >>= 3;
                            xmc[12] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 4;
                            Nc[1] = sr & 0x7f;  sr >>= 7;
                            bc[1] = sr & 0x3;  sr >>= 2;
                            Mc[1] = sr & 0x3;  sr >>= 2;
                            sr |= (uword)*c++ << 1;
                            xmaxc[1] = sr & 0x3f;  sr >>= 6;
                            xmc[13] = sr & 0x7;  sr >>= 3;
                            sr = *c++;                              /* 15 */
                            xmc[14] = sr & 0x7;  sr >>= 3;
                            xmc[15] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 2;
                            xmc[16] = sr & 0x7;  sr >>= 3;
                            xmc[17] = sr & 0x7;  sr >>= 3;
                            xmc[18] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 1;
                            xmc[19] = sr & 0x7;  sr >>= 3;
                            xmc[20] = sr & 0x7;  sr >>= 3;
                            xmc[21] = sr & 0x7;  sr >>= 3;
                            sr = *c++;
                            xmc[22] = sr & 0x7;  sr >>= 3;
                            xmc[23] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 2;
                            xmc[24] = sr & 0x7;  sr >>= 3;
                            xmc[25] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 4;                 /* 20 */
                            Nc[2] = sr & 0x7f;  sr >>= 7;
                            bc[2] = sr & 0x3;  sr >>= 2;
                            Mc[2] = sr & 0x3;  sr >>= 2;
                            sr |= (uword)*c++ << 1;
                            xmaxc[2] = sr & 0x3f;  sr >>= 6;
                            xmc[26] = sr & 0x7;  sr >>= 3;
                            sr = *c++;
                            xmc[27] = sr & 0x7;  sr >>= 3;
                            xmc[28] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 2;
                            xmc[29] = sr & 0x7;  sr >>= 3;
                            xmc[30] = sr & 0x7;  sr >>= 3;
                            xmc[31] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 1;
                            xmc[32] = sr & 0x7;  sr >>= 3;
                            xmc[33] = sr & 0x7;  sr >>= 3;
                            xmc[34] = sr & 0x7;  sr >>= 3;
                            sr = *c++;                              /* 25 */
                            xmc[35] = sr & 0x7;  sr >>= 3;
                            xmc[36] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 2;
                            xmc[37] = sr & 0x7;  sr >>= 3;
                            xmc[38] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 4;
                            Nc[3] = sr & 0x7f;  sr >>= 7;
                            bc[3] = sr & 0x3;  sr >>= 2;
                            Mc[3] = sr & 0x3;  sr >>= 2;
                            sr |= (uword)*c++ << 1;
                            xmaxc[3] = sr & 0x3f;  sr >>= 6;
                            xmc[39] = sr & 0x7;  sr >>= 3;
                            sr = *c++;
                            xmc[40] = sr & 0x7;  sr >>= 3;
                            xmc[41] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 2;                 /* 30 */
                            xmc[42] = sr & 0x7;  sr >>= 3;
                            xmc[43] = sr & 0x7;  sr >>= 3;
                            xmc[44] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 1;
                            xmc[45] = sr & 0x7;  sr >>= 3;
                            xmc[46] = sr & 0x7;  sr >>= 3;
                            xmc[47] = sr & 0x7;  sr >>= 3;
                            sr = *c++;
                            xmc[49] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 2;
                            xmc[50] = sr & 0x7;  sr >>= 3;
                            xmc[51] = sr & 0x7;  sr >>= 3;
    
                            frame_chain = sr & 0xf;
    
    
    
                            writeGSM_33(d);/* LARc etc. -> array of 33 GSM bytes */
    
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                            sr = frame_chain;
                            sr |= (uword)*c++ << 4;                 /* 1 */
                            LARc[0] = sr & 0x3f;  sr >>= 6;
                            LARc[1] = sr & 0x3f;  sr >>= 6;
                            sr = *c++;
                            LARc[2] = sr & 0x1f;  sr >>= 5;
                            sr |= (uword)*c++ << 3;
                            LARc[3] = sr & 0x1f;  sr >>= 5;
                            LARc[4] = sr & 0xf;  sr >>= 4;
                            sr |= (uword)*c++ << 2;
                            LARc[5] = sr & 0xf;  sr >>= 4;
                            LARc[6] = sr & 0x7;  sr >>= 3;
                            LARc[7] = sr & 0x7;  sr >>= 3;
                            sr = *c++;                              /* 5 */
                            Nc[0] = sr & 0x7f;  sr >>= 7;
                            sr |= (uword)*c++ << 1;
                            bc[0] = sr & 0x3;  sr >>= 2;
                            Mc[0] = sr & 0x3;  sr >>= 2;
                            sr |= (uword)*c++ << 5;
                            xmaxc[0] = sr & 0x3f;  sr >>= 6;
                            xmc[0] = sr & 0x7;  sr >>= 3;
                            xmc[1] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 1;
                            xmc[2] = sr & 0x7;  sr >>= 3;
                            xmc[3] = sr & 0x7;  sr >>= 3;
                            xmc[4] = sr & 0x7;  sr >>= 3;
                            sr = *c++;
                            xmc[5] = sr & 0x7;  sr >>= 3;
                            xmc[6] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 2;                 /* 10 */
                            xmc[7] = sr & 0x7;  sr >>= 3;
                            xmc[8] = sr & 0x7;  sr >>= 3;
                            xmc[9] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 1;
                            xmc[10] = sr & 0x7;  sr >>= 3;
                            xmc[11] = sr & 0x7;  sr >>= 3;
                            xmc[12] = sr & 0x7;  sr >>= 3;
                            sr = *c++;
                            Nc[1] = sr & 0x7f;  sr >>= 7;
                            sr |= (uword)*c++ << 1;
                            bc[1] = sr & 0x3;  sr >>= 2;
                            Mc[1] = sr & 0x3;  sr >>= 2;
                            sr |= (uword)*c++ << 5;
                            xmaxc[1] = sr & 0x3f;  sr >>= 6;
                            xmc[13] = sr & 0x7;  sr >>= 3;
                            xmc[14] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 1;                 /* 15 */
                            xmc[15] = sr & 0x7;  sr >>= 3;
                            xmc[16] = sr & 0x7;  sr >>= 3;
                            xmc[17] = sr & 0x7;  sr >>= 3;
                            sr = *c++;
                            xmc[18] = sr & 0x7;  sr >>= 3;
                            xmc[19] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 2;
                            xmc[20] = sr & 0x7;  sr >>= 3;
                            xmc[21] = sr & 0x7;  sr >>= 3;
                            xmc[22] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 1;
                            xmc[23] = sr & 0x7;  sr >>= 3;
                            xmc[24] = sr & 0x7;  sr >>= 3;
                            xmc[25] = sr & 0x7;  sr >>= 3;
                            sr = *c++;
                            Nc[2] = sr & 0x7f;  sr >>= 7;
                            sr |= (uword)*c++ << 1;                 /* 20 */
                            bc[2] = sr & 0x3;  sr >>= 2;
                            Mc[2] = sr & 0x3;  sr >>= 2;
                            sr |= (uword)*c++ << 5;
                            xmaxc[2] = sr & 0x3f;  sr >>= 6;
                            xmc[26] = sr & 0x7;  sr >>= 3;
                            xmc[27] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 1;
                            xmc[28] = sr & 0x7;  sr >>= 3;
                            xmc[29] = sr & 0x7;  sr >>= 3;
                            xmc[30] = sr & 0x7;  sr >>= 3;
                            sr = *c++;
                            xmc[31] = sr & 0x7;  sr >>= 3;
                            xmc[32] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 2;
                            xmc[33] = sr & 0x7;  sr >>= 3;
                            xmc[34] = sr & 0x7;  sr >>= 3;
                            xmc[35] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 1;                 /* 25 */
                            xmc[36] = sr & 0x7;  sr >>= 3;
                            xmc[37] = sr & 0x7;  sr >>= 3;
                            xmc[38] = sr & 0x7;  sr >>= 3;
                            sr = *c++;
                            Nc[3] = sr & 0x7f;  sr >>= 7;
                            sr |= (uword)*c++ << 1;
                            bc[3] = sr & 0x3;  sr >>= 2;
                            Mc[3] = sr & 0x3;  sr >>= 2;
                            sr |= (uword)*c++ << 5;
                            xmaxc[3] = sr & 0x3f;  sr >>= 6;
                            xmc[39] = sr & 0x7;  sr >>= 3;
                            xmc[40] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 1;
                            xmc[41] = sr & 0x7;  sr >>= 3;
                            xmc[42] = sr & 0x7;  sr >>= 3;
                            xmc[43] = sr & 0x7;  sr >>= 3;
                            sr = *c++;                              /* 30 */
                            xmc[44] = sr & 0x7;  sr >>= 3;
                            xmc[45] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 2;
                            xmc[46] = sr & 0x7;  sr >>= 3;
                            xmc[47] = sr & 0x7;  sr >>= 3;
                            xmc[48] = sr & 0x7;  sr >>= 3;
                            sr |= (uword)*c++ << 1;
                            xmc[49] = sr & 0x7;  sr >>= 3;
                            xmc[50] = sr & 0x7;  sr >>= 3;
                            xmc[51] = sr & 0x7;  sr >>= 3;
                            writeGSM_33(d+33);
    
    }