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uPD765 family updates

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- dp8473, pc_fdc_superio: Unmap registers not actually provided
- upd72065, i82072, smc37c78: Increase number of steps for recalibrate command
- wd37c65c: Duplicate write protect flag in SR3
This commit is contained in:
AJR 2020-05-18 16:58:34 -04:00
parent ec6eb8194c
commit 4e7244f77d
2 changed files with 40 additions and 20 deletions
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56
src/devices/machine/upd765.cpp
View File

@ -48,7 +48,7 @@ DEFINE_DEVICE_TYPE(UPD72065, upd72065_device, "upd72065", "NEC
DEFINE_DEVICE_TYPE(UPD72067, upd72067_device, "upd72067", "NEC uPD72067 FDC")
DEFINE_DEVICE_TYPE(UPD72069, upd72069_device, "upd72069", "NEC uPD72069 FDC")
DEFINE_DEVICE_TYPE(I82072, i82072_device, "i82072", "Intel 82072 FDC")
DEFINE_DEVICE_TYPE(SMC37C78, smc37c78_device, "smc37c78", "SMC FDC73C78 FDC")
DEFINE_DEVICE_TYPE(SMC37C78, smc37c78_device, "smc37c78", "SMC FDC37C78 FDC")
DEFINE_DEVICE_TYPE(N82077AA, n82077aa_device, "n82077aa", "Intel N82077AA FDC")
DEFINE_DEVICE_TYPE(PC_FDC_SUPERIO, pc_fdc_superio_device, "pc_fdc_superio", "Winbond PC FDC Super I/O")
DEFINE_DEVICE_TYPE(DP8473, dp8473_device, "dp8473", "National Semiconductor DP8473 FDC")
@ -109,22 +109,17 @@ void n82077aa_device::map(address_map &map)
void pc_fdc_superio_device::map(address_map &map)
{
map(0x0, 0x0).r(FUNC(pc_fdc_superio_device::sra_r));
map(0x1, 0x1).r(FUNC(pc_fdc_superio_device::srb_r));
map(0x2, 0x2).rw(FUNC(pc_fdc_superio_device::dor_r), FUNC(pc_fdc_superio_device::dor_w));
map(0x3, 0x3).rw(FUNC(pc_fdc_superio_device::tdr_r), FUNC(pc_fdc_superio_device::tdr_w));
map(0x4, 0x4).rw(FUNC(pc_fdc_superio_device::msr_r), FUNC(pc_fdc_superio_device::dsr_w));
map(0x2, 0x2).w(FUNC(pc_fdc_superio_device::dor_w));
map(0x3, 0x3).w(FUNC(pc_fdc_superio_device::tdr_w));
map(0x4, 0x4).r(FUNC(pc_fdc_superio_device::msr_r));
map(0x5, 0x5).rw(FUNC(pc_fdc_superio_device::fifo_r), FUNC(pc_fdc_superio_device::fifo_w));
map(0x7, 0x7).rw(FUNC(pc_fdc_superio_device::dir_r), FUNC(pc_fdc_superio_device::ccr_w));
}
void dp8473_device::map(address_map &map)
{
map(0x0, 0x0).r(FUNC(dp8473_device::sra_r));
map(0x1, 0x1).r(FUNC(dp8473_device::srb_r));
map(0x2, 0x2).rw(FUNC(dp8473_device::dor_r), FUNC(dp8473_device::dor_w));
map(0x3, 0x3).rw(FUNC(dp8473_device::tdr_r), FUNC(dp8473_device::tdr_w));
map(0x4, 0x4).rw(FUNC(dp8473_device::msr_r), FUNC(dp8473_device::dsr_w));
map(0x2, 0x2).w(FUNC(dp8473_device::dor_w));
map(0x4, 0x4).r(FUNC(dp8473_device::msr_r));
map(0x5, 0x5).rw(FUNC(dp8473_device::fifo_r), FUNC(dp8473_device::fifo_w));
map(0x7, 0x7).rw(FUNC(dp8473_device::dir_r), FUNC(dp8473_device::ccr_w));
}
@ -176,6 +171,7 @@ upd765_family_device::upd765_family_device(const machine_config &mconfig, device
select_connected(true),
select_multiplexed(true),
external_ready(false),
recalibrate_steps(77),
mode(mode_t::AT),
intrq_cb(*this),
drq_cb(*this),
@ -1407,14 +1403,7 @@ void upd765_family_device::execute_command(int cmd)
case C_SENSE_DRIVE_STATUS: {
floppy_info &fi = flopi[command[1] & 3];
main_phase = PHASE_RESULT;
result[0] = command[1] & 7;
if(fi.ready)
result[0] |= ST3_RY;
if(fi.dev)
result[0] |=
(fi.dev->wpt_r() ? ST3_WP : 0x00) |
(fi.dev->trk00_r() ? 0x00 : ST3_T0) |
(fi.dev->twosid_r() ? 0x00 : ST3_TS);
result[0] = get_st3(fi);
LOGCOMMAND("command sense drive status %d (%02x)\n", fi.id, result[0]);
result_pos = 1;
break;
@ -1493,13 +1482,26 @@ void upd765_family_device::command_end(floppy_info &fi, bool data_completion)
check_irq();
}
uint8_t upd765_family_device::get_st3(floppy_info &fi)
{
uint8_t st3 = command[1] & 7;
if(fi.ready)
result[0] |= ST3_RY;
if(fi.dev)
result[0] |=
(fi.dev->wpt_r() ? ST3_WP : 0x00) |
(fi.dev->trk00_r() ? 0x00 : ST3_T0) |
(fi.dev->twosid_r() ? 0x00 : ST3_TS);
return st3;
}
void upd765_family_device::recalibrate_start(floppy_info &fi)
{
LOGCOMMAND("command recalibrate %d\n", command[1] & 3);
fi.main_state = RECALIBRATE;
fi.sub_state = SEEK_WAIT_STEP_TIME_DONE;
fi.dir = 1;
fi.counter = 77;
fi.counter = recalibrate_steps;
fi.ready = get_ready(command[1] & 3);
fi.st0 = (fi.ready ? 0 : ST0_NR);
seek_continue(fi);
@ -2658,6 +2660,7 @@ upd72065_device::upd72065_device(const machine_config &mconfig, const char *tag,
upd72065_device::upd72065_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) : upd765_family_device(mconfig, type, tag, owner, clock)
{
dor_reset = 0x0c;
recalibrate_steps = 255;
}
upd72067_device::upd72067_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : upd72065_device(mconfig, UPD72067, tag, owner, clock)
@ -2679,6 +2682,7 @@ upd72069_device::upd72069_device(const machine_config &mconfig, const char *tag,
i82072_device::i82072_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : upd765_family_device(mconfig, I82072, tag, owner, clock)
{
dor_reset = 0x0c;
recalibrate_steps = 255;
}
void i82072_device::device_start()
@ -2945,6 +2949,7 @@ smc37c78_device::smc37c78_device(const machine_config &mconfig, const char *tag,
ready_connected = false;
select_connected = true;
select_multiplexed = false;
recalibrate_steps = 80;
}
n82077aa_device::n82077aa_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : upd765_family_device(mconfig, N82077AA, tag, owner, clock)
@ -2990,6 +2995,17 @@ wd37c65c_device::wd37c65c_device(const machine_config &mconfig, const char *tag,
(void)m_clock2; // TODO
}
uint8_t wd37c65c_device::get_st3(floppy_info &fi)
{
uint8_t st3 = command[1] & 7;
result[0] |= 0x20;
if(fi.dev)
result[0] |=
(fi.dev->wpt_r() ? 0x48 : 0x00) |
(fi.dev->trk00_r() ? 0x00 : 0x10);
return st3;
}
mcs3201_device::mcs3201_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
upd765_family_device(mconfig, MCS3201, tag, owner, clock),
m_input_handler(*this)

4
src/devices/machine/upd765.h
View File

@ -238,6 +238,8 @@ protected:
bool external_ready;
int recalibrate_steps;
mode_t mode;
int main_phase;
@ -307,6 +309,7 @@ protected:
virtual void start_command(int cmd);
virtual void execute_command(int cmd);
virtual void command_end(floppy_info &fi, bool data_completion);
virtual uint8_t get_st3(floppy_info &fi);
void recalibrate_start(floppy_info &fi);
void seek_start(floppy_info &fi);
@ -513,6 +516,7 @@ public:
void set_clock2(const XTAL &xtal) { set_clock2(xtal.value()); }
virtual void map(address_map &map) override;
virtual uint8_t get_st3(floppy_info &fi) override;
private:
uint32_t m_clock2;