Subversion Repositories zipcpu

////////////////////////////////////////////////////////////////////////////////

//

// Filename:    pdump.cpp

//

// Project:     Zip CPU -- a small, lightweight, RISC CPU core

//

// Purpose:     Disassemble machine code files onto the stdout file.  Unlike

//              the zdump program that is part of the assembler suite, this

//      program takes the pfile.bin output of the bench test suite and adds

//      profiling information to the output.  It's useful for finding out where,

//      at least in simulation, your time is being spent.  It can also be used,

//      after the fact, to get a trace of what instructions the CPU executed.

//

// Creator:     Dan Gisselquist, Ph.D.

//              Gisselquist Technology, LLC

//

////////////////////////////////////////////////////////////////////////////////

//

// Copyright (C) 2015, Gisselquist Technology, LLC

//

// This program is free software (firmware): you can redistribute it and/or

// modify it under the terms of  the GNU General Public License as published

// by the Free Software Foundation, either version 3 of the License, or (at

// your option) any later version.

//

// This program is distributed in the hope that it will be useful, but WITHOUT

// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

// for more details.

//

// You should have received a copy of the GNU General Public License along

// with this program.  (It's in the $(ROOT)/doc directory, run make with no

// target there if the PDF file isn't present.)  If not, see

// <http://www.gnu.org/licenses/> for a copy.

//

// License:     GPL, v3, as defined and found on www.gnu.org,

//              http://www.gnu.org/licenses/gpl.html

//

//

////////////////////////////////////////////////////////////////////////////////

#include <algorithm>

#include <stdio.h>

#include <unistd.h>

#include <ctype.h>

#include "zopcodes.h"

typedef struct  { unsigned clks, addr; } ALT;

bool    altcmp(const ALT &a, const ALT &b) {

        return a.clks < b.clks;

}

void    dump_file(const char *fn) {

        const   int     NZIP = 4096;

        char    lna[NZIP], lnb[NZIP];

        ZIPI    ibuf[NZIP];

        FILE    *fp, *pf;

        int     nr;

        unsigned        addr=0x08000, mina = -1, maxa = 0,

                        *pfcnt = NULL, *pfclk = NULL;

        fp = fopen(fn, "r");

        if (!fp)

                return;

        pf = fopen("pfile.bin","rb");

        if (pf) {

                ALT     *pfalt;

                unsigned        buf[2], total_clks = 0;

                while(2 == fread(buf, sizeof(unsigned), 2, pf)) {

                        if (mina > buf[0])

                                mina = buf[0];

                        if (maxa < buf[0])

                                maxa = buf[0];

                }

                addr = mina;

                pfcnt = new unsigned[(maxa+2-mina)];

                pfclk = new unsigned[(maxa+2-mina)];

                pfalt = new ALT[(maxa+2-mina)];

                unsigned ncnt = maxa+2-mina;

                for(int i=0; i<(int)ncnt; i++)

                        pfcnt[i] = pfclk[i] = 0;

                for(int i=0; i<(int)ncnt; i++)

                        pfalt[i].addr = pfalt[i].clks = 0;

                rewind(pf);

                while(2 == fread(buf, sizeof(unsigned), 2, pf)) {

                        pfcnt[buf[0]-addr]++;

                        pfclk[buf[0]-addr] += buf[1];

                        pfalt[buf[0]-addr].clks += buf[1];

                        pfalt[buf[0]-addr].addr = buf[0];

                        total_clks += buf[1];

                        printf("%08x\n", buf[0]);

                } fclose(pf);

                printf("%08x (%8d) total clocks\n", total_clks, total_clks);

                std::sort(&pfalt[0], &pfalt[ncnt], altcmp);

                for(int i=0; i<(int)ncnt; i++)

                        printf("%08x: %8d\n", pfalt[i].addr, pfalt[i].clks);

        }

        printf("%s:\n", fn);

        while((nr=fread(ibuf, sizeof(ZIPI), NZIP, fp))>0) {

                for(int i=0; i<nr; i++) {

                        zipi_to_string(ibuf[i], lna, lnb);

                        // printf("%s\n", ln);

                        printf("%08x: (0x%08x %c%c%c%c) ", addr,

                                ibuf[i],

                                isgraph((ibuf[i]>>24)&0x0ff)?((ibuf[i]>>24)&0x0ff) : '.',

                                isgraph((ibuf[i]>>16)&0x0ff)?((ibuf[i]>>16)&0x0ff) : '.',

                                isgraph((ibuf[i]>> 8)&0x0ff)?((ibuf[i]>> 8)&0x0ff) : '.',

                                isgraph((ibuf[i]    )&0x0ff)?((ibuf[i]    )&0x0ff) : '.'

                                );

                        if (pfcnt)

                                printf("%8d %8d ", pfcnt[addr-mina], pfclk[addr-mina]);

                        printf("%s\n", lna);

                        if (lnb[0])

                                printf("%26s%s\n", "", lnb);

                        addr++;

                }

        } fclose(fp);

}

int main(int argc, char **argv) {

        if (argc <= 1)

                printf("USAGE: pdump <dump-file> | less\n");

        for(int argn=1; argn<argc; argn++) {

                if(access(argv[argn], R_OK)==0)

                        dump_file(argv[argn]);

        }

        return 0;

}