Annotation of cci/d/macro4/pipe19.c, revision 1.1

1.1     ! root        1: 
        !             2: #include "fpp_defs.h"
        !             3: 
        !             4: 
        !             5: /*****************************************************************************
        !             6: *
        !             7: *              PIPELINE TEST #19 
        !             8: *
        !             9: *      LDD(op1), MULD(op2), STD op3, SUBD op3, STD
        !            10: *
        !            11: *  -where the operands are the fmacro1 MULD data patterns. The SUBD operand
        !            12: *   is the stored result of the MULD.
        !            13: *  -If the 1st STD isn't completed before the SUBD data is fetched then we
        !            14: *   won't get a final accumulator of zero.
        !            15: *****************************************************************************/
        !            16: pipe_19()
        !            17: {
        !            18:        asm(".globl _pipeline_19_t");
        !            19:        asm("_pipeline_19_t:");
        !            20:        if( (cycle == 1) && (prt_hdrs) )        /* print headers on 1st cycle */
        !            21:           writes(" PIPE_19");
        !            22:        force_loop = FALSE;                     /* clear force_loop flag */
        !            23:        for( index = 0; index <= max_muld_1_index; index++ ) {
        !            24:              dbl_value_1  = muld_1_data[index].op_1;   /* get the data    */
        !            25:              dbl_value_2  = muld_1_data[index].op_2;   /*   operands      */
        !            26:              dbl_expected = muld_1_data[index].exp; 
        !            27: /*
        !            28:  *  This is the start of the LOOP ON ERROR section
        !            29: */
        !            30:              asm("_pipe19_1_lp:");
        !            31:              asm("ldd _dbl_value_1");          /* get the 1st operand     */
        !            32:              asm("muld _dbl_value_2");         /* multiply by the 2nd op. */
        !            33:              asm("std _dbl_value_3");          /* save the MULD result    */
        !            34:              asm("subd _dbl_value_3");         /* and subtract it again   */
        !            35:              asm("std _dbl_st_acc");           /* save the final result   */
        !            36:              if( force_loop ) 
        !            37:                    asm("brb _pipe19_1_lp");;   /* loop on the error */
        !            38: /*
        !            39:  *   Verify the results
        !            40: */
        !            41:              if( (dbl_st_acc.m) || (dbl_st_acc.l) ) {  /* the Acc s/b = 0 */
        !            42:                    errcnt++;                   /* bump the error count    */
        !            43:                    if ( prt_error ) 
        !            44:                          pipe19_print();       /* print the error mesage  */
        !            45:                    if ( halt_flg )
        !            46:                          pipe19_halt( 1 );     /* halt on the error       */
        !            47:                    if ( loop_on_err )  {
        !            48:                          force_loop = TRUE;
        !            49:                          asm("jmp _pipe19_1_lp");;   
        !            50:                    }
        !            51:              }
        !            52:        } 
        !            53:        asm("jmp *return");             /* return to the test monitor       */
        !            54: }
        !            55: 
        !            56: 
        !            57: 
        !            58: 
        !            59: /*
        !            60:  **************************************************************************
        !            61:  *
        !            62:  *             print an error message of the form
        !            63:  *
        !            64:  * cycle: xx  Test xx (Pipe 19), error
        !            65:  * test sequence = LDD(op1), MULD(op2), STD(op3), SUBD(op3), STD
        !            66:  * operand 1 = xxxxxxxx xxxxxxxx,    final Acc = xxxxxxxx xxxxxxxx,  index = xx
        !            67:  * operand 2 = xxxxxxxx xxxxxxxx, expected Acc = xxxxxxxx xxxxxxxx
        !            68:  * operand 3 = xxxxxxxx xxxxxxxx, expected op3 = xxxxxxxx xxxxxxxx
        !            69:  **************************************************************************
        !            70: */
        !            71: pipe19_print()
        !            72: {
        !            73:        writes(" \n");          /* start a new print line   */
        !            74:        writes("cycle: ");
        !            75:        writed( cycle );
        !            76:        writes("  Test ");
        !            77:        writed( test_no );
        !            78:        writes("  (Pipe 19), error\n");
        !            79:        writes("LDD(op1), MULD(op2), STD(op3), SUBD(op3), STD\n");
        !            80:        writes("operand 1 = ");
        !            81:        write32h( dbl_value_1.m );
        !            82:        writec(' ');
        !            83:        write32h( dbl_value_1.l );
        !            84:        writes(",    final Acc = ");
        !            85:        write32h( dbl_st_acc.m );
        !            86:        writec(' ');
        !            87:        write32h( dbl_st_acc.l );
        !            88:        writes(",  index = ");
        !            89:        writed( index );
        !            90:        writes("\noperand 2 = ");
        !            91:        write32h( dbl_value_2.m );
        !            92:        writec(' ');
        !            93:        write32h( dbl_value_2.l );
        !            94:        writes(", expected Acc = ");
        !            95:        write32h( 0 );
        !            96:        writec(' ');
        !            97:        write32h( 0 );
        !            98:        writes("\noperand 3 = ");
        !            99:        write32h( dbl_value_3.m );
        !           100:        writec(' ');
        !           101:        write32h( dbl_value_3.l );
        !           102:        writes(", expected op3 = ");
        !           103:        write32h( dbl_expected.m );
        !           104:        writec(' ');
        !           105:        write32h( dbl_expected.l );
        !           106:        writec('\n');
        !           107: }
        !           108: 
        !           109: 
        !           110: 
        !           111: /*
        !           112:  **************************************************************************
        !           113:  *
        !           114:  *             HALT ON AN ERROR
        !           115:  *
        !           116:  **************************************************************************
        !           117: */
        !           118: pipe19_halt()
        !           119: {
        !           120:         sgl_value_1 = dbl_value_1.m;
        !           121:         sgl_value_2 = dbl_value_1.l;
        !           122:         sgl_value_3 = dbl_value_2.m;
        !           123:         sgl_value_4 = dbl_value_2.l;
        !           124:         sgl_value_5 = dbl_value_3.m;
        !           125:         sgl_value_6 = dbl_value_3.l;
        !           126:         asm("movl _test_no,r0");       /* r0  = test number        */
        !           127:         asm("movl $1,r1");             /* r1  = subtest number     */
        !           128:         asm("movl $1,r2");             /* r2  = error code         */
        !           129:         asm("movl _cycle,r3");         /* r3  = cycle count        */
        !           130:         asm("movl _sgl_value_1,r4");   /* r4  = MS of operand #1   */
        !           131:         asm("movl _sgl_value_2,r5");   /* r5  = LS of operand #1   */
        !           132:         asm("movl _sgl_value_3,r6");   /* r6  = MS of operand #2   */
        !           133:         asm("movl _sgl_value_4,r7");   /* r7  = LS of operand #2   */
        !           134:         asm("movl _sgl_value_5,r8");   /* r8  = MS of operand #3   */
        !           135:         asm("movl _sgl_value_6,r9");   /* r9  = LS of operand #3   */
        !           136:         sgl_value_1 = dbl_st_acc.m;
        !           137:         sgl_value_2 = dbl_st_acc.l;
        !           138:         asm("movl _sgl_value_1,r10");  /* r10 = MS of final value  */
        !           139:         asm("movl _sgl_value_2,r11");  /* r11 = LS of final value  */
        !           140:         asm("clrl r12");               /* r12 = MS exp value (0)   */
        !           141:         asm("clrl r13");               /* r13 = LS exp value (0)   */
        !           142:         asm("movl _index,r14");        /* r14 = data index         */
        !           143:         asm("halt");                   /* HALT ...                 */
        !           144: }  
        !           145: 

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