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This commit is contained in:
Thomas Harte 2024-01-19 10:36:09 -05:00
parent e6ee8acfd6
commit 1d6537c3a9
1 changed files with 23 additions and 19 deletions
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42
Components/1770/1770.cpp
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@ -9,10 +9,14 @@
#include "1770.hpp"
#include "../../Storage/Disk/Encodings/MFM/Constants.hpp"
#define LOG_PREFIX "[WD FDC] "
#include "../../Outputs/Log.hpp"
namespace {
auto logger = Log::Logger(Log::Source::WDFDC);
}
using namespace WD;
WD1770::WD1770(Personality p) :
@ -29,10 +33,10 @@ void WD1770::write(int address, uint8_t value) {
if((value&0xf0) == 0xd0) {
if(value == 0xd0) {
// Force interrupt **immediately**.
LOG("Force interrupt immediately");
logger.info().append("Force interrupt immediately");
posit_event(int(Event1770::ForceInterrupt));
} else {
ERROR("!!!TODO: force interrupt!!!");
logger.error().append("TODO: force interrupt");
update_status([] (Status &status) {
status.type = Status::One;
});
@ -103,10 +107,10 @@ uint8_t WD1770::read(int address) {
return status;
}
case 1:
LOG("Returned track " << int(track_));
logger.info().append("Returned track %d", track_);
return track_;
case 2:
LOG("Returned sector " << int(sector_));
logger.info().append("Returned sector %d", sector_);
return sector_;
case 3:
update_status([] (Status &status) {
@ -212,7 +216,7 @@ void WD1770::posit_event(int new_event_type) {
// Wait for a new command, branch to the appropriate handler.
case 0:
wait_for_command:
LOG("Idle...");
logger.info().append("Idle...");
set_data_mode(DataMode::Scanning);
index_hole_count_ = 0;
@ -229,7 +233,7 @@ void WD1770::posit_event(int new_event_type) {
status.track_zero = false; // Always reset by a non-type 1; so reset regardless and set properly later.
});
LOG("Starting " << PADHEX(2) << int(command_));
logger.info().append("Starting %02x", command_);
if(!(command_ & 0x80)) goto begin_type_1;
if(!(command_ & 0x40)) goto begin_type_2;
@ -259,7 +263,7 @@ void WD1770::posit_event(int new_event_type) {
status.data_request = false;
});
LOG("Step/Seek/Restore with track " << int(track_) << " data " << int(data_));
logger.info().append("Step/Seek/Restore with track %d data %d", track_, data_);
if(!has_motor_on_line() && !has_head_load_line()) goto test_type1_type;
if(has_motor_on_line()) goto begin_type1_spin_up;
@ -339,7 +343,7 @@ void WD1770::posit_event(int new_event_type) {
READ_ID();
if(index_hole_count_ == 6) {
LOG("Nothing found to verify");
logger.info().append("Nothing found to verify");
update_status([] (Status &status) {
status.seek_error = true;
});
@ -357,7 +361,7 @@ void WD1770::posit_event(int new_event_type) {
}
if(header_[0] == track_) {
LOG("Reached track " << std::dec << int(track_));
logger.info().append("Reached track %d", track_);
update_status([] (Status &status) {
status.crc_error = false;
});
@ -430,7 +434,7 @@ void WD1770::posit_event(int new_event_type) {
READ_ID();
if(index_hole_count_ == 5) {
LOG("Failed to find sector " << std::dec << int(sector_));
logger.info().append("Failed to find sector %d", sector_);
update_status([] (Status &status) {
status.record_not_found = true;
});
@ -440,12 +444,12 @@ void WD1770::posit_event(int new_event_type) {
distance_into_section_ = 0;
set_data_mode(DataMode::Scanning);
LOG("Considering " << std::dec << int(header_[0]) << "/" << int(header_[2]));
logger.info().append("Considering %d/%d", header_[0], header_[2]);
if( header_[0] == track_ && header_[2] == sector_ &&
(has_motor_on_line() || !(command_&0x02) || ((command_&0x08) >> 3) == header_[1])) {
LOG("Found " << std::dec << int(header_[0]) << "/" << int(header_[2]));
logger.info().append("Found %d/%d", header_[0], header_[2]);
if(get_crc_generator().get_value()) {
LOG("CRC error; back to searching");
logger.info().append("CRC error; back to searching");
update_status([] (Status &status) {
status.crc_error = true;
});
@ -503,18 +507,18 @@ void WD1770::posit_event(int new_event_type) {
set_data_mode(DataMode::Scanning);
if(get_crc_generator().get_value()) {
LOG("CRC error; terminating");
logger.info().append("CRC error; terminating");
update_status([] (Status &status) {
status.crc_error = true;
});
goto wait_for_command;
}
LOG("Finished reading sector " << std::dec << int(sector_));
logger.info().append("Finished reading sector %d", sector_);
if(command_ & 0x10) {
sector_++;
LOG("Advancing to search for sector " << std::dec << int(sector_));
logger.info().append("Advancing to search for sector %d", sector_);
goto test_type2_write_protection;
}
goto wait_for_command;
@ -598,7 +602,7 @@ void WD1770::posit_event(int new_event_type) {
sector_++;
goto test_type2_write_protection;
}
LOG("Wrote sector " << std::dec << int(sector_));
logger.info().append("Wrote sector %d", sector_);
goto wait_for_command;