mti_GetNumRecordElements()

Model Technology Inc.

mti_GetNumRecordElements()

Gets the number of subelements in a VHDL record type.

Syntax

num_elems = mti_GetNumRecordElements( type_id )

Returns


Name	Type	Description
num_elems	mtiInt32T	The number of subelements in the specified record type

Arguments


Name	Type	Description
type_id	mtiTypeIdT	A handle to a VHDL record type

Description

mti_GetNumRecordElements() returns the number of subelements in the specified VHDL record type.

Related functions

mti_GetSignalSubelements()

mti_GetVarSubelements()

Example

FLI code

#include <mti.h>

typedef struct signalInfoT_tag {
  struct signalInfoT_tag * next;
  char                   * name;
  mtiSignalIdT             sigid;
  mtiTypeIdT               typeid;
} signalInfoT;

typedef struct {
  signalInfoT   * sig_info;     /* List of signals. */
  mtiProcessIdT   proc;         /* Test process id. */
} instanceInfoT;

static void printValue( mtiSignalIdT sigid, mtiTypeIdT sigtype, int indent )
{
  switch ( mti_GetTypeKind(sigtype) ) {
   case MTI_TYPE_ENUM:
   case MTI_TYPE_PHYSICAL:
   case MTI_TYPE_SCALAR:
    {
     mtiInt32T scalar_val;
     scalar_val = mti_GetSignalValue( sigid );
     mti_PrintFormatted( "  %d\n", scalar_val );
    }
    break;
   case MTI_TYPE_ARRAY:
    {
     int            i;
     mtiInt32T      num_elems;
     mtiTypeIdT     elem_type;
     mtiTypeKindT   elem_typekind;
     void         * array_val;

     array_val = mti_GetArraySignalValue( sigid, 0 );
     num_elems = mti_TickLength( sigtype );
     elem_type = mti_GetArrayElementType( sigtype );
     elem_typekind = mti_GetTypeKind( elem_type );
     switch ( elem_typekind ) {
      case MTI_TYPE_ENUM:
       {
        char ** enum_values;
        enum_values = mti_GetEnumValues( elem_type );
        if ( mti_TickLength( elem_type ) > 256 ) {
         mtiInt32T * val = array_val;
         for ( i = 0; i < num_elems; i++ ) {
          mti_PrintFormatted( "  %s", enum_values[val[i]] );
         }
        } else {
         char * val = array_val;
         for ( i = 0; i < num_elems; i++ ) {
          mti_PrintFormatted( "  %s", enum_values[val[i]] );
         }
        }
       }
       break;
      case MTI_TYPE_PHYSICAL:
      case MTI_TYPE_SCALAR:
       {
        mtiInt32T * val = array_val;
        for ( i = 0; i < num_elems; i++ ) {
         mti_PrintFormatted( "  %d", val[i] );
        }
       }
       break;
      case MTI_TYPE_ARRAY:
       mti_PrintMessage( "  ARRAY" );
       break;
      case MTI_TYPE_RECORD:
       mti_PrintMessage( "  RECORD" );
       break;
      case MTI_TYPE_REAL:
       {
        double * val = array_val;
        for ( i = 0; i < num_elems; i++ ) {
         mti_PrintFormatted( "  %g", val[i] );
        }
       }
       break;
      case MTI_TYPE_TIME:
       {
        mtiTime64T * val = array_val;
        for ( i = 0; i < num_elems; i++ ) {
         mti_PrintFormatted( "  [%d,%d]",
                            MTI_TIME64_HI32(val[i]),
                            MTI_TIME64_LO32(val[i]) );
        }
       }
       break;
      default:
       break;
     }
     mti_PrintFormatted( "\n" );
     mti_VsimFree( array_val );
    }
    break;
   case MTI_TYPE_RECORD:
    {
     int            i;
     mtiSignalIdT * elem_list;
     mtiInt32T      num_elems;
     elem_list = mti_GetSignalSubelements( sigid, 0 );
     num_elems = mti_GetNumRecordElements( sigtype );
     mti_PrintFormatted( "\n" );
     for ( i = 0; i < num_elems; i++ ) {
      mti_PrintFormatted( "%*cField #%d:", indent, ' ', i+1 );
      printValue( elem_list[i], mti_GetSignalType(elem_list[i]),
                 indent+2 );
     }
     mti_VsimFree( elem_list );
    }
    break;
   case MTI_TYPE_REAL:
    {
     double real_val;
     mti_GetSignalValueIndirect( sigid, &real_val );
     mti_PrintFormatted( "  %g\n", real_val );
    }
    break;
   case MTI_TYPE_TIME:
    {
     mtiTime64T time_val;
     mti_GetSignalValueIndirect( sigid, &time_val );
     mti_PrintFormatted( "  [%d,%d]\n",
                        MTI_TIME64_HI32(time_val),
                        MTI_TIME64_LO32(time_val) );
    }
    break;
   default:
    mti_PrintMessage( "\n" );
    break;
  }
}

static void checkValues( void *inst_info )
{
  instanceInfoT *inst_data = (instanceInfoT *)inst_info;
  signalInfoT   *siginfo;

  mti_PrintFormatted( "Time [%d,%d]:\n", mti_NowUpper(), mti_Now() );

  for ( siginfo = inst_data->sig_info; siginfo; siginfo = siginfo->next ) {
   mti_PrintFormatted( "  Signal %s:", siginfo->name );
   printValue( siginfo->sigid, siginfo->typeid, 4 );
  }

  mti_ScheduleWakeup( inst_data->proc, 5 );
}

static signalInfoT * setupSignal( mtiSignalIdT sigid )
{
  signalInfoT * siginfo;

  siginfo          = (signalInfoT *) mti_Malloc( sizeof(signalInfoT) );
  siginfo->sigid   = sigid;
  siginfo->name    = mti_GetSignalNameIndirect( sigid, 0, 0 );
  siginfo->typeid  = mti_GetSignalType( sigid );
  siginfo->next    = 0;

  return( siginfo );
}

static void initInstance( void )
{
  instanceInfoT * inst_data;
  mtiSignalIdT    sigid;
  signalInfoT   * curr_info;
  signalInfoT   * siginfo;

  inst_data           = mti_Malloc( sizeof(instanceInfoT) );
  inst_data->sig_info = 0;

  for ( sigid = mti_FirstSignal( mti_GetTopRegion() );
    sigid; sigid = mti_NextSignal() ) {
   siginfo = setupSignal( sigid );
   if ( inst_data->sig_info == 0 ) {
    inst_data->sig_info = siginfo;
   }
   else {
    curr_info->next = siginfo;
   }
   curr_info = siginfo; 
  }

  inst_data->proc = mti_CreateProcess( "Test Process", checkValues,
                                      (void *)inst_data );
  mti_ScheduleWakeup( inst_data->proc, 6 );
}
void initForeign(
  mtiRegionIdT       region,   /* The ID of the region in which this     */
                               /* foreign architecture is instantiated.  */
  char              *param,    /* The last part of the string in the     */
                               /* foreign attribute.                     */
  mtiInterfaceListT *generics, /* A list of generics for the foreign model.*/
  mtiInterfaceListT *ports     /* A list of ports for the foreign model.   */
)
{
  mti_AddLoadDoneCB( initInstance, 0 );
}

HDL code

entity for_model is
end for_model;

architecture a of for_model is
  attribute foreign of a : architecture is "initForeign for_model.sl;";
  begin
end a;

library ieee;
use ieee.std_logic_1164.all;

entity top is

  type bitarray is array( 3 downto 0 ) of bit;

  type rectype is record
    a : bit;
    b : integer;
    c : real;
    d : std_logic_vector( 7 downto 0 );
    e : bitarray;
  end record;

end top;

architecture a of top is

  signal rec : rectype   := ( '0', 1, 3.7, "10010011", "1001" );

  component for_model
  end component;

  for all : for_model use entity work.for_model(a);

begin

  inst1 : for_model;

  rec.a <= not rec.a after 5 ns;
  rec.b <= rec.b + 1 after 5 ns;
  rec.c <= rec.c + 2.5 after 5 ns;
  rec.d <= not rec.d after 5 ns;
  rec.e <= not rec.e after 5 ns;

end a;

Simulation output

% vsim -c top
Reading .../modeltech/sunos5/../tcl/vsim/pref.tcl 

# 5.4b

# vsim -c top 
# Loading .../modeltech/sunos5/../std.standard
# Loading .../modeltech/sunos5/../ieee.std_logic_1164(body)
# Loading work.top(a)
# Loading work.for_model(a)
# Loading ./for_model.sl
VSIM 1> run 15
# Time [0,6]:
#   Signal rec:
#     Field #1:  1
#     Field #2:  2
#     Field #3:  6.2
#     Field #4:  '0'  '1'  '1'  '0'  '1'  '1'  '0'  '0'
#     Field #5:  '0'  '1'  '1'  '0'
# Time [0,11]:
#   Signal rec:
#     Field #1:  0
#     Field #2:  3
#     Field #3:  8.7
#     Field #4:  '1'  '0'  '0'  '1'  '0'  '0'  '1'  '1'
#     Field #5:  '1'  '0'  '0'  '1'
VSIM 2> quit

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