Retro/pcem
Watch
1
0
Fork
You've already forked pcem
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

HD loading can now autodetect some 17 sector MFM hard drives. Patch from Greatpsycho.

Browse source
This commit is contained in:
SarahW 2017-04-28 18:13:03 +01:00
commit b2f018c11e
2 changed files with 51 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

33
src/allegro-gui-hdconf.c
View file

@ -68,9 +68,36 @@ static int hdconf_open(int msg, DIALOG *d, int c)
fseeko64(f, -1, SEEK_END);
sz = ftello64(f) + 1;
fclose(f);
sprintf(hd_sectors_new, "63");
sprintf(hd_heads_new, "16");
sprintf(hd_cylinders_new, "%i", (int)((sz / 512) / 16) / 63);
if ((sz % 17) == 0 && sz <= 133693440)
{
sprintf(hd_sectors_new, "17");
if (sz <= 26738688)
{
sprintf(hd_heads_new, "4");
sprintf(hd_cylinders_new, "%i", (int)((sz / 512) / 4) / 17);
}
else if (sz <= 53477376)
{
sprintf(hd_heads_new, "6");
sprintf(hd_cylinders_new, "%i", (int)((sz / 512) / 6) / 17);
}
else if (sz <= 71303168)
{
sprintf(hd_heads_new, "8");
sprintf(hd_cylinders_new, "%i", (int)((sz / 512) / 8) / 17);
}
else
{
sprintf(hd_heads_new, "15");
sprintf(hd_cylinders_new, "%i", (int)((sz / 512) / 15) / 17);
}
}
else
{
sprintf(hd_sectors_new, "63");
sprintf(hd_heads_new, "16");
sprintf(hd_cylinders_new, "%i", (int)((sz / 512) / 16) / 63);
}
while (1)
{

24
src/win-hdconf.c
View file

@ -61,9 +61,27 @@ static void check_hd_type(off64_t sz)
}
else
{
hd_new_spt = 63;
hd_new_hpc = 16;
hd_new_cyl = ((sz / 512) / 16) / 63;
if ((sz % 17) == 0 && sz <= 133693440)
{
hd_new_spt = 17;
if (sz <= 26738688)
hd_new_hpc = 4;
else if (sz <= 53477376)
hd_new_hpc = 6;
else if (sz <= 71303168)
hd_new_hpc = 8;
else
hd_new_hpc = 15;
hd_new_cyl = (int)((sz / 512) / hd_new_hpc) / 17;
}
else
{
hd_new_spt = 63;
hd_new_hpc = 16;
hd_new_cyl = ((sz / 512) / 16) / 63;
}
}
}