NAME¶

DPGEN_ROM4 - 4 words ROM Macro-Generator

SYNOPSIS¶

#include <genlib.h> void GENLIB_MACRO (DPGEN_ROM4, char * modelname, long flags, long N, char *constVal0, char * constVal1, char *constVal2, char *constVal3 );

DESCRIPTION¶

Generate a N bits 2 words optimized ROM named modelname.

TERMINAL NAMES¶

1.

sel1 : upper bit of the address (input, 1 bits).

2.

sel0 : lower bit of the address (input, 1 bits).

3.

q : the selected word (output, N bit).

4.

vdd : power.

5.

vss : ground.

BEHAVIOR¶

q <= WITH sel1 & sel0 SELECT contsVal0  WHEN B"00",
                             contsVal1  WHEN B"01",
                             contsVal2  WHEN B"10",
                             constVal3  WHEN B"11";
      

EXAMPLE¶

GENLIB_MACRO(DPGEN_ROM4, "model_rom4_set1_16"
                       , F_BEHAV|F_PLACE
                       , 4
                       , "0xFF00"  /* A string! */
                       , "0xCCCC"  /* A string! */
                       , "0xF0F0"  /* A string! */
                       , "0xAAAA"  /* A string! */
                       );

GENLIB_LOINS( "model_rom4_set1_16"
            , "instance1_rom4_set1_16"
            , "sel1"
            , "sel0"
            , "q[31:0]"
            , "vdd", "vss", NULL
            );
    

SEE ALSO¶

GENLIB_MACRO(3), genlib(1)