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Added FM resyncs in READ_TRACK, changed threshold.

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This commit is contained in:
Michael Zapf 2018-04-21 00:00:05 +02:00
parent 031c9ca8fb
commit a6f79509a1
1 changed files with 36 additions and 23 deletions
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59
src/devices/machine/wd_fdc.cpp
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@ -18,8 +18,10 @@
#define LOG_WRITE (1U << 10) // Show write operation on image
#define LOG_TRANSITION (1U << 11) // Show transitions
#define LOG_STATE (1U << 12) // Show state machine
#define LOG_LIVE (1U << 13) // Live states
#define LOG_FUNC (1U << 14) // Function calls
//#define VERBOSE (LOG_GENERAL | LOG_SETUP| LOG_COMMAND | LOG_STATE | LOG_LINES )
#define VERBOSE (LOG_GENERAL )
//#define LOG_OUTPUT_STREAM std::cout
#include "logmacro.h"
@ -36,6 +38,8 @@
#define LOGWRITE(...) LOGMASKED(LOG_WRITE, __VA_ARGS__)
#define LOGTRANSITION(...) LOGMASKED(LOG_TRANSITION, __VA_ARGS__)
#define LOGSTATE(...) LOGMASKED(LOG_STATE, __VA_ARGS__)
#define LOGLIVE(...) LOGMASKED(LOG_LIVE, __VA_ARGS__)
#define LOGFUNC(...) LOGMASKED(LOG_FUNC, __VA_ARGS__)
#ifdef _MSC_VER
#define FUNCNAME __func__
@ -244,7 +248,7 @@ void wd_fdc_device_base::device_timer(emu_timer &timer, device_timer_id id, int
void wd_fdc_device_base::command_end()
{
LOGCOMMAND("%s\n", FUNCNAME);
LOGFUNC("%s\n", FUNCNAME);
main_state = sub_state = IDLE;
motor_timeout = 0;
@ -640,7 +644,7 @@ void wd_fdc_device_base::read_id_start()
void wd_fdc_device_base::read_id_continue()
{
LOG("%s\n", FUNCNAME);
LOGFUNC("%s\n", FUNCNAME);
for(;;) {
switch(sub_state) {
case SPINUP:
@ -949,7 +953,7 @@ void wd_fdc_device_base::interrupt_start()
void wd_fdc_device_base::general_continue()
{
LOG("%s\n", FUNCNAME);
LOGFUNC("%s\n", FUNCNAME);
if(cur_live.state != IDLE) {
live_run();
if(cur_live.state != IDLE)
@ -1230,7 +1234,7 @@ uint8_t wd_fdc_device_base::data_r()
void wd_fdc_device_base::gen_w(int reg, uint8_t val)
{
LOGSETUP("%s %02x: %02x\n", FUNCNAME, reg, val);
LOGFUNC("%s %02x: %02x\n", FUNCNAME, reg, val);
switch(reg) {
case 0: cmd_w(val); break;
case 1: track_w(val); break;
@ -1404,7 +1408,7 @@ READ_LINE_MEMBER(wd_fdc_device_base::enp_r)
void wd_fdc_device_base::live_start(int state)
{
LOG("%s\n", FUNCNAME);
LOGFUNC("%s\n", FUNCNAME);
cur_live.tm = machine().time();
cur_live.state = state;
cur_live.next_state = -1;
@ -1429,7 +1433,7 @@ void wd_fdc_device_base::live_start(int state)
void wd_fdc_device_base::checkpoint()
{
LOG("%s\n", FUNCNAME);
LOGFUNC("%s\n", FUNCNAME);
pll_commit(floppy, cur_live.tm);
checkpoint_live = cur_live;
pll_save_checkpoint();
@ -1582,7 +1586,7 @@ void wd_fdc_device_base::live_run(attotime limit)
for(;;) {
switch(cur_live.state) {
case SEARCH_ADDRESS_MARK_HEADER:
//LOG("%s - SEARCH_ADDRESS_MARK_HEADER\n", FUNCNAME);
LOGLIVE("%s - SEARCH_ADDRESS_MARK_HEADER\n", FUNCNAME);
if(read_one_bit(limit))
return;
@ -1616,7 +1620,7 @@ void wd_fdc_device_base::live_run(attotime limit)
break;
case READ_HEADER_BLOCK_HEADER: {
LOG("%s - READ_HEADER_BLOCK_HEADER\n", FUNCNAME);
LOGLIVE("%s - READ_HEADER_BLOCK_HEADER\n", FUNCNAME);
if(read_one_bit(limit))
return;
@ -1657,7 +1661,7 @@ void wd_fdc_device_base::live_run(attotime limit)
}
case READ_ID_BLOCK_TO_LOCAL: {
LOG("%s - READ_ID_BLOCK_TO_LOCAL\n", FUNCNAME);
LOGLIVE("%s - READ_ID_BLOCK_TO_LOCAL\n", FUNCNAME);
if(read_one_bit(limit))
return;
if(cur_live.bit_counter & 15)
@ -1673,7 +1677,7 @@ void wd_fdc_device_base::live_run(attotime limit)
}
case READ_ID_BLOCK_TO_DMA:
LOG("%s - READ_ID_BLOCK_TO_DMA\n", FUNCNAME);
LOGLIVE("%s - READ_ID_BLOCK_TO_DMA\n", FUNCNAME);
if(read_one_bit(limit))
return;
if(cur_live.bit_counter & 15)
@ -1682,7 +1686,7 @@ void wd_fdc_device_base::live_run(attotime limit)
return;
case READ_ID_BLOCK_TO_DMA_BYTE:
LOG("%s - READ_ID_BLOCK_TO_DMA_BYTE\n", FUNCNAME);
LOGLIVE("%s - READ_ID_BLOCK_TO_DMA_BYTE\n", FUNCNAME);
data = cur_live.data_reg;
if(cur_live.bit_counter == 16)
sector = data;
@ -1703,7 +1707,7 @@ void wd_fdc_device_base::live_run(attotime limit)
break;
case SEARCH_ADDRESS_MARK_DATA:
LOG("%s - SEARCH_ADDRESS_MARK_DATA\n", FUNCNAME);
LOGLIVE("%s - SEARCH_ADDRESS_MARK_DATA\n", FUNCNAME);
if(read_one_bit(limit))
return;
@ -1755,7 +1759,7 @@ void wd_fdc_device_base::live_run(attotime limit)
break;
case READ_DATA_BLOCK_HEADER: {
LOG("%s - READ_DATA_BLOCK_HEADER\n", FUNCNAME);
LOGLIVE("%s - READ_DATA_BLOCK_HEADER\n", FUNCNAME);
if(read_one_bit(limit))
return;
@ -1795,13 +1799,13 @@ void wd_fdc_device_base::live_run(attotime limit)
}
case SEARCH_ADDRESS_MARK_DATA_FAILED:
LOG("%s - SEARCH_ADDRESS_MARK_DATA_FAILED\n", FUNCNAME);
LOGLIVE("%s - SEARCH_ADDRESS_MARK_DATA_FAILED\n", FUNCNAME);
status |= S_RNF;
cur_live.state = IDLE;
return;
case READ_SECTOR_DATA: {
LOG("%s - READ_SECTOR_DATA\n", FUNCNAME);
LOGLIVE("%s - READ_SECTOR_DATA\n", FUNCNAME);
if(read_one_bit(limit))
return;
if(cur_live.bit_counter & 15)
@ -1823,7 +1827,7 @@ void wd_fdc_device_base::live_run(attotime limit)
}
case READ_SECTOR_DATA_BYTE:
LOG("%s - READ_SECTOR_DATA_BYTE\n", FUNCNAME);
LOGLIVE("%s - READ_SECTOR_DATA_BYTE\n", FUNCNAME);
data = cur_live.data_reg;
set_drq();
cur_live.state = READ_SECTOR_DATA;
@ -1831,14 +1835,22 @@ void wd_fdc_device_base::live_run(attotime limit)
break;
case READ_TRACK_DATA: {
LOG("%s - READ_TRACK_DATA\n", FUNCNAME);
LOGLIVE("%s - READ_TRACK_DATA\n", FUNCNAME);
if(read_one_bit(limit))
return;
if(cur_live.bit_counter != 16
&& cur_live.shift_reg != 0x4489
&& cur_live.shift_reg != 0x5224)
// MFM resyncs
&& !(!dden && (cur_live.shift_reg == 0x4489
|| cur_live.shift_reg == 0x5224))
// FM resyncs
&& !(dden && (cur_live.shift_reg == 0xf57e // FM IDAM
|| cur_live.shift_reg == 0xf56f // FM DAM
|| cur_live.shift_reg == 0xf56a)) // FM DDAM
)
break;
// Incorrect, hmmm
// Probably >2 + not just after a sync if <16
@ -1848,7 +1860,8 @@ void wd_fdc_device_base::live_run(attotime limit)
// 8: 00.00.0a.a1 9: ff.ff.e1.a1 10: 00.00.14.a1 11: ff.ff.ce.a1
// 12: 00.00.14.a1 13: ff.ff.c2.a1 14: 00.00.14.a1 15: ff.ff.c2.a1
bool output_byte = cur_live.bit_counter > 5;
// MZ: TI99 "DISkASSEMBLER" copy protection requires a threshold of 8
bool output_byte = cur_live.bit_counter > 8;
cur_live.data_separator_phase = false;
cur_live.bit_counter = 0;
@ -1861,7 +1874,7 @@ void wd_fdc_device_base::live_run(attotime limit)
}
case READ_TRACK_DATA_BYTE:
LOG("%s - READ_TRACK_DATA_BYTE\n", FUNCNAME);
LOGLIVE("%s - READ_TRACK_DATA_BYTE\n", FUNCNAME);
data = cur_live.data_reg;
set_drq();
cur_live.state = READ_TRACK_DATA;
@ -2307,7 +2320,7 @@ int wd_fdc_digital_device_base::digital_pll_t::get_next_bit(attotime &tm, floppy
LOGTRANSITION("transition_time=%s\n", tts(when).c_str());
*/
for(;;) {
// LOGTRANSITION)("slot=%2d, counter=%03x\n", slot, counter);
// LOGTRANSITION("slot=%2d, counter=%03x\n", slot, counter);
attotime etime = ctime+delays[slot];
// LOGTRANSITION("etime=%s\n", tts(etime).c_str());
if(etime > limit)