source: buchla-68k/orig/GEMDOS/PROTO.C@ ad89950

/*
   =============================================================================
        proto.c -- dump Atari prototype boot sectors
        Version 2 -- 1988-01-25 -- D.N. Lynx Crowe
   =============================================================================
*/

#include "stdio.h"
#include "osbind.h"
#include "bootsec.h"

short   buf[256];       /* boot sector buffer */

char    *descrip[] = {  /* boot sector descriptions */

        "40 tracks, single sided (180K)",
        "40 tracks, double sided (360K)",
        "80 tracks, single sided (360K)",
        "80 tracks, double sided (720K)"
};

/* 

*/

/*
   =============================================================================
        getiwd() -- get an Intel byte reversed word
   =============================================================================
*/

unsigned
getiwd(wp)
register char wp[];
{
        register unsigned val;

        val = ((wp[1] & 0x00FF) << 8) | (wp[0] & 0x00FF);
        return(val);
}

/* 

*/

main()
{
        register long i;
        register short dt, j;
        register struct BootSec *bsp;

        bsp = (struct BootSwc *)buf;

        for (dt = 0; dt < 4; dt++) {

                memsetw(buf, 0xE5E5, 256);              /* 0xE5 fill */

                Protobt(buf, 0x01000000L, dt, 0);       /* make the prototype */

                printf("Atari prototype boot sector type %d:\n", dt);

                printf("     %s\n", descrip[dt]);

                printf("\nBoot sector contents --\n\n");

                printf("  Branch word       = $%02.2x $%02.2x\n",
                        0x00FF & bsp->branch[0],
                        0x00FF & bsp->branch[1]);

                printf("  OEM area          =");

                for (j = 0; j < 6; j++)
                        printf(" $%02.2x", 0x00FF & bsp->oem[j]);

                printf("\n  Volume S/N        =");

                for (j = 0; j < 3; j++)
                        printf(" $%02.2x", 0x00FF & bsp->vsn[j]);

                printf("\n  Bytes / Sector    = %u\n", getiwd(bsp->bps));
                printf("  Sectors / Cluster = %u\n", bsp->spc);
                printf("  Reserved sectors  = %u\n", getiwd(bsp->res));
                printf("  Number of FATS    = %u\n", bsp->nfats);
                printf("  Directory entries = %u\n", getiwd(bsp->ndirs));
                printf("  Total Sectors     = %u\n", getiwd(bsp->nsects));
                printf("  Media byte        = $%02.2x\n", 0x00FF & bsp->media);
                printf("  Sectors / FAT     = %u\n", getiwd(bsp->spf));
                printf("  Sectors / Track   = %u\n", getiwd(bsp->spt));
                printf("  Sides             = %u\n", getiwd(bsp->nsides));
                printf("  Hidden files      = %u\n", getiwd(bsp->nhid));
                printf("  Checksum          = $%04.4x\n\n", getiwd(bsp->cksum));

                printf("Dump of entire sector:\n");

                mdump((char *)&buf, (char *)&buf+511L, 0L);

                printf("\f");
        }

        exit(0);
}