DPGEN_ROM4(3)

✨ DPGEN_ROM4(3) ✨

okay bestie, welcome to the Alliance - genlib User's Manual 💖 this one is the DPGEN_ROM4 page and it's literally the 4 words ROM Macro-Generator. sit down, hydrate, let's go 🫶

🌸 NAME 🌸

DPGEN_ROM4 — the 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 🦋

So what it does is generate a ROM that's N bits and 2 words, optimized, and you get to name it modelname. that's the whole vibe ✨

🌈 TERMINAL NAMES 🌈

the terminals, in order, no cap:

1. sel1 — the upper bit of the address (input, 1 bits).
2. sel0 — the lower bit of the address (input, 1 bits).
3. q — the selected word (output, N bit).
4. vdd — power.
5. vss — ground.

💫 BEHAVIOR 💫

the actual behavior, copy-pasted from the source of truth, do not touch:

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

👑 EXAMPLE 👑

here's how you'd actually call it, and yeah the values are strings, they're strings, the comments say so twice because it matters 😭

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)

and that's the page, bestie 💜 ASIM/LIP6 dropped this one on 30 July 2004 and it's still serving. go build something iconic, periodt ✨🎀🦋