6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2025-02-25 02:29:08 +00:00
Code Issues Projects Releases Wiki Activity

Fixed reporting of data request line, initial status values.

Browse Source
This commit is contained in:
Thomas Harte 2016-11-30 22:39:55 -05:00
parent 2222cb65d6
commit b31fd11470
2 changed files with 26 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
Components/1770/1770.cpp
View File

@ -11,6 +11,19 @@
using namespace WD; using namespace WD;
WD1770::Status::Status() :
type(Status::One),
write_protect(false),
record_type(false),
spin_up(false),
record_not_found(false),
crc_error(false),
seek_error(false),
lost_data(false),
// data_request(false),
busy(false)
{}
WD1770::WD1770(Personality p) : WD1770::WD1770(Personality p) :
Storage::Disk::Controller(8000000, 16, 300), Storage::Disk::Controller(8000000, 16, 300),
interesting_event_mask_(Event::Command), interesting_event_mask_(Event::Command),
@ -87,7 +100,7 @@ uint8_t WD1770::get_register(int address)
status |= status |=
(status_.record_type ? Flag::RecordType : 0) | (status_.record_type ? Flag::RecordType : 0) |
(status_.lost_data ? Flag::LostData : 0) | (status_.lost_data ? Flag::LostData : 0) |
(status_.data_request ? Flag::DataRequest : 0) | (data_request_line_ ? Flag::DataRequest : 0) |
(status_.record_not_found ? Flag::RecordNotFound : 0); (status_.record_not_found ? Flag::RecordNotFound : 0);
break; break;
} }
@ -297,10 +310,16 @@ void WD1770::posit_event(Event new_event_type)
is_reading_data_ = false; is_reading_data_ = false;
status_.busy = false; status_.busy = false;
index_hole_count_ = 0; index_hole_count_ = 0;
if(is_73())
{
// TODO: ???
set_motor_on(false);
}
set_interrupt_request(true); set_interrupt_request(true);
WAIT_FOR_EVENT(Event::Command); WAIT_FOR_EVENT(Event::Command);
set_interrupt_request(false); set_interrupt_request(false);
// WAIT_FOR_TIME(1); // TODO: what should the time cost here really be?
printf("Starting %02x\n", command_); printf("Starting %02x\n", command_);
if(is_73()) if(is_73())
@ -320,6 +339,7 @@ void WD1770::posit_event(Event new_event_type)
*/ */
begin_type_1: begin_type_1:
// Set initial flags, skip spin-up if possible. // Set initial flags, skip spin-up if possible.
status_.type = Status::One;
status_.seek_error = false; status_.seek_error = false;
status_.crc_error = false; status_.crc_error = false;
set_data_request(false); set_data_request(false);
@ -411,6 +431,7 @@ void WD1770::posit_event(Event new_event_type)
Type 2 entry point. Type 2 entry point.
*/ */
begin_type_2: begin_type_2:
status_.type = Status::Two;
status_.lost_data = status_.record_not_found = status_.write_protect = status_.record_type = false; status_.lost_data = status_.record_not_found = status_.write_protect = status_.record_type = false;
set_data_request(false); set_data_request(false);
distance_into_section_ = 0; distance_into_section_ = 0;
@ -508,6 +529,7 @@ void WD1770::posit_event(Event new_event_type)
printf("!!!TODO: data portion of sector!!!\n"); printf("!!!TODO: data portion of sector!!!\n");
begin_type_3: begin_type_3:
status_.type = Status::Three;
printf("!!!TODO: type 3 commands!!!\n"); printf("!!!TODO: type 3 commands!!!\n");

3
Components/1770/1770.hpp
View File

@ -58,6 +58,7 @@ class WD1770: public Storage::Disk::Controller {
inline bool is_73() { return (personality_ == P1793 ) || (personality_ == P1773); } inline bool is_73() { return (personality_ == P1793 ) || (personality_ == P1773); }
struct Status { struct Status {
Status();
bool write_protect; bool write_protect;
bool record_type; bool record_type;
bool spin_up; bool spin_up;
@ -65,7 +66,7 @@ class WD1770: public Storage::Disk::Controller {
bool crc_error; bool crc_error;
bool seek_error; bool seek_error;
bool lost_data; bool lost_data;
bool data_request; // bool data_request; // TODO: pick between this and data_request_line_
bool busy; bool busy;
enum { enum {
One, Two, Three One, Two, Three