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Adds enough of a BD500 for the boot sector seemingly to load.

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This commit is contained in:
Thomas Harte 2020-01-14 23:15:27 -05:00
parent 6b84ae3095
commit f258fc2971
3 changed files with 59 additions and 30 deletions
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35
Machines/Oric/BD500.cpp
View File

@ -1,12 +1,41 @@
//
// Jasmin.cpp
// BD500.cpp
// Clock Signal
//
// Created by Thomas Harte on 05/01/2020.
// Created by Thomas Harte on 14/01/2020.
// Copyright © 2020 Thomas Harte. All rights reserved.
//
#include "Jasmin.hpp"
#include "BD500.hpp"
using namespace Oric;
BD500::BD500() : DiskController(P1793, 9000000) {
set_paged_item(PagedItem::DiskROM);
set_is_double_density(true);
}
void BD500::write(int address, uint8_t value) {
switch(address) {
case 0x0320: case 0x0321: case 0x0322: case 0x0323:
WD::WD1770::write(address, value);
break;
}
}
uint8_t BD500::read(int address) {
switch(address) {
case 0x0320: case 0x0321: case 0x0322: case 0x0323:
return WD::WD1770::read(address);
}
return 0xff;
}
void BD500::set_head_load_request(bool head_load) {
// Turn all motors on or off, and load the head instantly.
for(auto &drive : drives_) {
if(drive) drive->set_motor_on(head_load);
}
set_head_loaded(head_load);
}

11
Machines/Oric/BD500.hpp
View File

@ -18,6 +18,17 @@
namespace Oric {
class BD500: public DiskController {
public:
BD500();
void write(int address, uint8_t value);
uint8_t read(int address);
private:
void set_head_load_request(bool head_load) final;
};
};
#endif /* BD500_hpp */

43
Machines/Oric/Oric.cpp
View File

@ -8,6 +8,7 @@
#include "Oric.hpp"
#include "BD500.hpp"
#include "Jasmin.hpp"
#include "Keyboard.hpp"
#include "Microdisc.hpp"
@ -321,7 +322,7 @@ template <Analyser::Static::Oric::Target::DiskInterface disk_interface> class Co
switch(target.disk_interface) {
default: break;
case DiskInterface::BD500:
// jasmin_.set_delegate(this);
bd500_.set_delegate(this);
break;
case DiskInterface::Jasmin:
jasmin_.set_delegate(this);
@ -397,16 +398,10 @@ template <Analyser::Static::Oric::Target::DiskInterface disk_interface> class Co
if(!media.disks.empty()) {
switch(disk_interface) {
case DiskInterface::Jasmin:
inserted |= insert_disks(media, jasmin_, 4);
break;
case DiskInterface::Microdisc: {
inserted |= insert_disks(media, microdisc_, 4);
} break;
case DiskInterface::Pravetz: {
inserted |= insert_disks(media, diskii_, 2);
} break;
case DiskInterface::BD500: inserted |= insert_disks(media, bd500_, 4); break;
case DiskInterface::Jasmin: inserted |= insert_disks(media, jasmin_, 4); break;
case DiskInterface::Microdisc: inserted |= insert_disks(media, microdisc_, 4); break;
case DiskInterface::Pravetz: inserted |= insert_disks(media, diskii_, 2); break;
default: break;
}
}
@ -441,6 +436,10 @@ template <Analyser::Static::Oric::Target::DiskInterface disk_interface> class Co
} else {
switch(disk_interface) {
default: break;
case DiskInterface::BD500:
if(isReadOperation(operation)) *value = bd500_.read(address);
else bd500_.write(address, *value);
break;
case DiskInterface::Jasmin:
if(address >= 0x3f4) {
if(isReadOperation(operation)) *value = jasmin_.read(address);
@ -504,6 +503,9 @@ template <Analyser::Static::Oric::Target::DiskInterface disk_interface> class Co
tape_player_.run_for(Cycles(1));
switch(disk_interface) {
default: break;
case DiskInterface::BD500:
bd500_.run_for(Cycles(8));
break;
case DiskInterface::Jasmin:
jasmin_.run_for(Cycles(8));
@ -573,22 +575,6 @@ template <Analyser::Static::Oric::Target::DiskInterface disk_interface> class Co
string_serialiser_ = std::make_unique<Utility::StringSerialiser>(string, true);
}
// for Microdisc::Delegate
/* void microdisc_did_change_paging_flags(class Microdisc *microdisc) final {
const int flags = microdisc->get_paging_flags();
if(!(flags&Microdisc::PagingFlags::BASICDisable)) {
ram_top_ = basic_visible_ram_top_;
paged_rom_ = rom_.data();
} else {
if(flags&Microdisc::PagingFlags::MicrodiscDisable) {
ram_top_ = basic_invisible_ram_top_;
} else {
ram_top_ = 0xdfff;
paged_rom_ = disk_rom_.data();
}
}
}*/
// DiskController::Delegate
void disk_controller_did_change_paged_item(DiskController *controller) final {
switch(controller->get_paged_item()) {
@ -707,6 +693,9 @@ template <Analyser::Static::Oric::Target::DiskInterface disk_interface> class Co
Jasmin jasmin_;
int jasmin_reset_counter_ = 0;
// the BD-500, if in use.
BD500 bd500_;
// the Pravetz/Disk II, if in use.
Apple::DiskII diskii_;
Cycles cycles_since_diskii_update_;