Michel2/HxCFloppyEmulator
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dmk : HD disk support.

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This commit is contained in:
Jean-François DEL NERO
2024-06-21 11:22:02 +02:00
parent 97a98e8fb6
commit b8a6b8083c
1 changed files with 33 additions and 22 deletions
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libhxcfe/sources/loaders/dmk_loader/dmk_loader.c
+33 -22
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@@ -102,7 +102,7 @@ int DMK_libIsValidDiskFile( HXCFE_IMGLDR * imgldr_ctx, HXCFE_IMGLDR_FILEINFOS *
||
( (dmk_h->track_len>0x2940) || (dmk_h->track_len<0xB00) )
( (dmk_h->track_len>0x36B0) || (dmk_h->track_len<0xB00) )
)
{
@@ -142,8 +142,10 @@ HXCFE_SIDE* DMKpatchtrack(HXCFE* floppycontext,unsigned char * trackdata, unsign
HXCFE_SIDE* currentside;
track_generator tg;
lastptr=0;
bitrate=250000;
lastptr = 0;
bitrate = 250000;
if( tracklen > 9000 )
bitrate = 500000;
trackstep=1;
if(dmkh->flags&0xC0)
@@ -351,12 +353,10 @@ HXCFE_SIDE* DMKpatchtrack(HXCFE* floppycontext,unsigned char * trackdata, unsign
// alloc the track...
tg_initTrackEncoder(&tg);
tracksize=final_tracklen*8;
if(tracksize<((((20000) * (bitrate/4) )/(12500))))
{
tracksize=((((20000) * (bitrate/4) )/(12500)));
}
if(tracksize&0x1F) tracksize=(tracksize&(~0x1F))+0x20;
tracksize = final_tracklen*8;
if(tracksize&0x1F)
tracksize=(tracksize&(~0x1F))+0x20;
/*{
unsigned char fname[512];
@@ -368,8 +368,8 @@ HXCFE_SIDE* DMKpatchtrack(HXCFE* floppycontext,unsigned char * trackdata, unsign
savebuffer(fname,track_density, tracklen);
}*/
currentside=tg_initTrack(&tg,tracksize,0,trackformat,DEFAULT_DD_BITRATE,0,0);
currentside->number_of_sector=k;
currentside = tg_initTrack(&tg,tracksize,0,trackformat,bitrate,0,0);
currentside->number_of_sector = k;
k=0;
do
{
@@ -422,26 +422,37 @@ int DMK_libLoad_DiskFile(HXCFE_IMGLDR * imgldr_ctx,HXCFE_FLOPPY * floppydisk,cha
if( filesize )
{
hxc_fread(&dmk_h,sizeof(dmk_h),f);
floppydisk->floppyBitRate=250000;
hxc_fread(&dmk_h,sizeof(dmk_header),f);
floppydisk->floppyBitRate = 250000;
numberofside=2;
if(dmk_h.flags&SINGLE_SIDE) numberofside--;
if( dmk_h.track_len > 9000 )
floppydisk->floppyBitRate = 500000;
numberoftrack=dmk_h.track_number;
numberofside = 2;
if(dmk_h.flags & SINGLE_SIDE)
numberofside--;
floppydisk->floppyNumberOfTrack=numberoftrack;
floppydisk->floppyNumberOfSide=numberofside;
floppydisk->floppySectorPerTrack=-1;
floppydisk->floppyiftype=GENERIC_SHUGART_DD_FLOPPYMODE;
floppydisk->tracks=(HXCFE_CYLINDER**)malloc(sizeof(HXCFE_CYLINDER*)*floppydisk->floppyNumberOfTrack);
numberoftrack = dmk_h.track_number;
floppydisk->floppyNumberOfTrack = numberoftrack;
floppydisk->floppyNumberOfSide = numberofside;
floppydisk->floppySectorPerTrack = -1;
floppydisk->floppyiftype = GENERIC_SHUGART_DD_FLOPPYMODE;
floppydisk->tracks = (HXCFE_CYLINDER**)malloc(sizeof(HXCFE_CYLINDER*)*floppydisk->floppyNumberOfTrack);
if( !floppydisk->tracks )
{
hxc_fclose(f);
return HXCFE_INTERNALERROR;
}
rpm=300; // normal rpm
rpm = 300; // normal rpm
if( floppydisk->floppyBitRate == 500000 && dmk_h.track_len < 11000 ) // 360 RPM disk ?
rpm = 360;
if( floppydisk->floppyBitRate == 250000 && dmk_h.track_len < 5800 ) // 360 RPM disk ?
rpm = 360;
imgldr_ctx->hxcfe->hxc_printf(MSG_INFO_1,"filesize:%dkB, %d tracks, %d side(s), %d sectors/track, rpm:%d",filesize/1024,floppydisk->floppyNumberOfTrack,floppydisk->floppyNumberOfSide,floppydisk->floppySectorPerTrack,rpm);