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86F and IMG handler now account for possible floppy drive swap when getting the drive's current RPM;

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The RWC setting is now ignored when the FDC is not in enhanced mode.
This commit is contained in:
OBattler
2016-09-07 03:00:52 +02:00
parent 5a2ba3b53b
commit a43004aebe
4 changed files with 44 additions and 24 deletions
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27
src/fdc.c
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@@ -253,13 +253,15 @@ void fdc_update_is_nsc(int is_nsc)
fdc.is_nsc = is_nsc;
}
static void fdc_rate(int drive);
void fdc_update_enh_mode(int enh_mode)
{
fdc.enh_mode = enh_mode;
fdc_rate(0);
fdc_rate(1);
}
static void fdc_rate(int drive);
int fdc_get_rwc(int drive)
{
return fdc.rwc[drive];
@@ -309,11 +311,11 @@ void fdc_update_drv2en(int drv2en)
void fdc_update_rate(int drive)
{
if ((fdc.rwc[drive] == 1) || (fdc.rwc[drive] == 2))
if (((fdc.rwc[drive] == 1) || (fdc.rwc[drive] == 2)) && fdc.enh_mode)
{
bit_rate = 500;
}
else if (fdc.rwc[drive] == 3)
else if ((fdc.rwc[drive] == 3) && fdc.enh_mode)
{
bit_rate = 250;
}
@@ -375,13 +377,16 @@ int fdc_get_bitcell_period()
static int fdc_get_densel(int drive)
{
switch (fdc.rwc[drive])
if (fdc.enh_mode)
{
case 1:
case 3:
return 0;
case 2:
return 1;
switch (fdc.rwc[drive])
{
case 1:
case 3:
return 0;
case 2:
return 1;
}
}
if (!fdc.is_nsc)
@@ -492,7 +497,7 @@ void fdc_write(uint16_t addr, uint8_t val, void *priv)
if (fdc.enh_mode)
{
drive = (fdc.dor & 1) ^ fdd_swap;
fdc.rwc[drive] = (val & 0x30) >> 4;
fdc_update_rwc(drive, (val & 0x30) >> 4);
}
return;
case 4: