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wd1772: Paranoia (nw)

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This commit is contained in:
Olivier Galibert 2012-11-23 18:15:50 +00:00
parent 6be44f9d0b
commit 93022acc68
1 changed files with 15 additions and 11 deletions
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26
src/mess/machine/wd1772.c
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@ -183,7 +183,7 @@ void wd177x_t::seek_start(int state)
else
status &= ~S_HLD;
}
sub_state = has_motor() ? SPINUP : SPINUP_DONE;
sub_state = has_motor() && !has_head_load() ? SPINUP : SPINUP_DONE;
status_type_1 = true;
seek_continue();
}
@ -223,12 +223,11 @@ void wd177x_t::seek_continue()
floppy->dir_w(last_dir);
floppy->stp_w(0);
floppy->stp_w(1);
// When stepping with update, the track register is updated before seeking.
// Important for the sam coupe format code.
if(main_state == STEP && (command & 0x10))
track += last_dir ? -1 : 1;
}
// When stepping with update, the track register is updated before seeking.
// Important for the sam coupe format code.
if(main_state == STEP && (command & 0x10))
track += last_dir ? -1 : 1;
counter++;
sub_state = SEEK_WAIT_STEP_TIME;
delay_cycles(t_gen, step_time(command & 3));
@ -278,6 +277,11 @@ void wd177x_t::seek_continue()
case SEEK_DONE:
if(command & 0x04) {
if(has_ready() && !is_ready()) {
status |= S_RNF;
command_end();
return;
}
sub_state = SCAN_ID;
counter = 0;
live_start(SEARCH_ADDRESS_MARK_HEADER);
@ -338,7 +342,7 @@ void wd177x_t::read_sector_start()
drop_drq();
if (has_side_select() && floppy)
floppy->ss_w(BIT(command, 1));
sub_state = has_motor() ? SPINUP : SPINUP_DONE;
sub_state = has_motor() && !has_head_load() ? SPINUP : SPINUP_DONE;
status_type_1 = false;
read_sector_continue();
}
@ -428,7 +432,7 @@ void wd177x_t::read_track_start()
drop_drq();
if (has_side_select() && floppy)
floppy->ss_w(BIT(command, 1));
sub_state = has_motor() ? SPINUP : SPINUP_DONE;
sub_state = has_motor() && !has_head_load() ? SPINUP : SPINUP_DONE;
status_type_1 = false;
read_track_continue();
}
@ -495,7 +499,7 @@ void wd177x_t::read_id_start()
drop_drq();
if (has_side_select() && floppy)
floppy->ss_w(BIT(command, 1));
sub_state = has_motor() ? SPINUP : SPINUP_DONE;
sub_state = has_motor() && !has_head_load() ? SPINUP : SPINUP_DONE;
status_type_1 = false;
read_id_continue();
}
@ -560,7 +564,7 @@ void wd177x_t::write_track_start()
drop_drq();
if (has_side_select() && floppy)
floppy->ss_w(BIT(command, 1));
sub_state = has_motor() ? SPINUP : SPINUP_DONE;
sub_state = has_motor() && !has_head_load() ? SPINUP : SPINUP_DONE;
status_type_1 = false;
write_track_continue();
}
@ -642,7 +646,7 @@ void wd177x_t::write_sector_start()
drop_drq();
if (has_side_select() && floppy)
floppy->ss_w(BIT(command, 1));
sub_state = has_motor() ? SPINUP : SPINUP_DONE;
sub_state = has_motor() && !has_head_load() ? SPINUP : SPINUP_DONE;
status_type_1 = false;
write_sector_continue();
}