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iwm/swim: Small write fixes

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This commit is contained in:
Olivier Galibert 2021-02-21 22:57:45 +01:00
parent 5d5f3e3f85
commit 7024ab3d2b
3 changed files with 36 additions and 14 deletions
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24
src/devices/machine/iwm.cpp
View File

@ -133,23 +133,33 @@ void iwm_device::write(offs_t offset, u8 data)
void iwm_device::flush_write()
{
if(m_floppy && m_flux_write_start && m_last_sync > m_flux_write_start) {
bool last_on_edge = m_flux_write_count && m_flux_write[m_flux_write_count-1] == m_last_sync;
if(!m_flux_write_start)
return;
if(!when)
when = m_last_sync;
if(when > m_flux_write_start) {
bool last_on_edge = m_flux_write_count && m_flux_write[m_flux_write_count-1] == when;
if(last_on_edge)
m_flux_write_count--;
attotime start = cycles_to_time(m_flux_write_start);
attotime end = cycles_to_time(m_last_sync);
attotime end = cycles_to_time(when);
std::vector<attotime> fluxes(m_flux_write_count);
for(u32 i=0; i != m_flux_write_count; i++)
fluxes[i] = cycles_to_time(m_flux_write[i]);
m_floppy->write_flux(start, end, m_flux_write_count, m_flux_write_count ? &fluxes[0] : nullptr);
m_flux_write_start = m_last_sync;
if(m_floppy)
m_floppy->write_flux(start, end, m_flux_write_count, m_flux_write_count ? &fluxes[0] : nullptr);
m_flux_write_count = 0;
if(last_on_edge)
m_flux_write[m_flux_write_count++] = m_last_sync;
m_flux_write[m_flux_write_count++] = when;
m_flux_write_start = when;
} else
m_flux_write_count = 0;
}
u8 iwm_device::control(int offset, u8 data)

13
src/devices/machine/swim1.cpp
View File

@ -376,10 +376,13 @@ void swim1_device::device_timer(emu_timer &, device_timer_id, int, void *)
void swim1_device::flush_write(u64 when)
{
if(!m_flux_write_start)
return;
if(!when)
when = m_last_sync;
if(m_floppy && m_flux_write_start && when > m_flux_write_start) {
if(when > m_flux_write_start) {
bool last_on_edge = m_flux_write_count && m_flux_write[m_flux_write_count-1] == when;
if(last_on_edge)
m_flux_write_count--;
@ -389,11 +392,15 @@ void swim1_device::flush_write(u64 when)
std::vector<attotime> fluxes(m_flux_write_count);
for(u32 i=0; i != m_flux_write_count; i++)
fluxes[i] = cycles_to_time(m_flux_write[i]);
m_floppy->write_flux(start, end, m_flux_write_count, m_flux_write_count ? &fluxes[0] : nullptr);
m_flux_write_start = m_last_sync;
if(m_floppy)
m_floppy->write_flux(start, end, m_flux_write_count, m_flux_write_count ? &fluxes[0] : nullptr);
m_flux_write_count = 0;
if(last_on_edge)
m_flux_write[m_flux_write_count++] = when;
m_flux_write_start = when;
} else
m_flux_write_count = 0;
}

13
src/devices/machine/swim2.cpp
View File

@ -97,17 +97,22 @@ void swim2_device::flush_write(u64 when)
when = m_last_sync;
if(m_floppy && when > m_flux_write_start) {
if(m_flux_write_count && m_flux_write[m_flux_write_count-1] == when)
bool last_on_edge = m_flux_write_count && m_flux_write[m_flux_write_count-1] == when;
if(last_on_edge)
m_flux_write_count--;
attotime start = cycles_to_time(m_flux_write_start);
attotime end = cycles_to_time(when);
std::vector<attotime> fluxes(m_flux_write_count);
for(u32 i=0; i != m_flux_write_count; i++)
fluxes[i] = cycles_to_time(m_flux_write[i]);
m_floppy->write_flux(start, end, m_flux_write_count, m_flux_write_count ? &fluxes[0] : nullptr);
}
m_flux_write_count = 0;
m_flux_write_start = when;
m_flux_write_count = 0;
if(last_on_edge)
m_flux_write[m_flux_write_count++] = when;
} else
m_flux_write_count = 0;
}
void swim2_device::show_mode() const