claunia/86Box
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Added support for the D86F floppy image format I invented that allows things not possible with IMG images;

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Applied all mainline PCem commits;
Settings dialog now says 86Box instead of PCem;
Manifest renamed from PCem to 86Box.
This commit is contained in:
OBattler
2016-08-31 22:49:56 +02:00
parent d860ea79ed
commit 1ddad56c8c
81 changed files with 4255 additions and 3899 deletions
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64
src/fdc.c
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@@ -34,6 +34,7 @@ typedef struct FDC
int abort;
uint8_t format_dat[256];
int format_state;
int format_n;
int tc;
int written;
@@ -99,10 +100,18 @@ void fdc_reset()
// pclog("Reset FDC\n");
}
int ins;
int fdc_get_bitcell_period();
int fdc_get_format_n()
{
return fdc.format_n;
}
int fdc_is_mfm()
{
return (fdc.command & 0x40) ? 1 : 0;
}
double fdc_get_hut()
{
int hut = (fdc.specify[0] & 0xF);
@@ -339,6 +348,26 @@ void fdc_update_rate(int drive)
// pclog("fdc_update_rate: rate=%i bit_rate=%i bitcell_period=%i\n", fdc.rate, bit_rate, fdc.bitcell_period);
}
int fdc_get_bit_rate()
{
switch(bit_rate)
{
case 500:
return 0;
case 300:
return 1;
case 2000:
return 1 | 4;
case 250:
return 2;
case 1000:
return 3;
default:
return 2;
}
return 2;
}
int fdc_get_bitcell_period()
{
return fdc.bitcell_period;
@@ -500,7 +529,7 @@ void fdc_write(uint16_t addr, uint8_t val, void *priv)
fdc.data_ready = 0;
fdc.command=val;
// pclog("Starting FDC command %02X\n",fdc.command);
// pclog("Starting FDC command %02X\n",fdc.command);
switch (fdc.command&0x1F)
{
case 1: /*Mode*/
@@ -635,7 +664,7 @@ bad_command:
fdc.params[fdc.pnum++]=val;
if (fdc.pnum==fdc.ptot)
{
// pclog("Got all params %02X\n", fdc.command);
// pclog("Got all params %02X\n", fdc.command);
fdc.stat=0x30;
discint=fdc.command&0x1F;
timer_process();
@@ -747,6 +776,8 @@ bad_command:
fdc.gap = fdc.params[3];
fdc.dtl = 4000000;
fdc.format_sectors = fdc.params[2];
fdc.format_n = fdc.params[1];
if ((fdc.format_sectors == 18) && (fdc.format_n == 2)) fatal("Deliberate fatal\n");
fdc.format_state = 1;
fdc.pos = 0;
fdc.stat = 0x30;
@@ -1111,33 +1142,10 @@ void fdc_callback()
disctime = 128 * (1 << TIMER_SHIFT);
timer_update_outstanding();
}
#if 0
else if (fdc.format_state == 2)
{
temp = fdc_getdata(fdc.pos == ((fdc.params[2] * 4) - 1));
if (temp == -1)
{
timer_process();
disctime = 128 * (1 << TIMER_SHIFT);
timer_update_outstanding();
return;
}
fdc.format_dat[fdc.pos++] = temp;
if (fdc.pos == (fdc.params[2] * 4))
fdc.format_state = 3;
timer_process();
disctime = 128 * (1 << TIMER_SHIFT);
timer_update_outstanding();
}
else if (fdc.format_state == 3)
#endif
else if (fdc.format_state == 2)
{
pclog("Format next stage track %i head %i\n", fdc.track[fdc.drive], fdc.head);
// pclog("Format next stage track %i head %i n %i is_mfm %i gap %i sc %i\n", fdc.track[fdc.drive], fdc.head, fdc_get_format_n(), fdc_is_mfm(), fdc_get_gap(), fdc_get_format_sectors());
disc_format(fdc.drive, fdc.track[fdc.drive], fdc.head, fdc.rate, fdc.params[4]);
#if 0
fdc.format_state = 4;
#endif
fdc.format_state = 3;
}
else