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This is probably how Acorn hard disk images look (?)

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This commit is contained in:
Thomas Harte 2021-01-31 16:00:52 -05:00
parent 8db289e229
commit f1ba040dd8
3 changed files with 81 additions and 0 deletions
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6
OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj
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@ -850,6 +850,7 @@
4BE211DE253E4E4800435408 /* 65C02_no_Rockwell_test.bin in Resources */ = {isa = PBXBuildFile; fileRef = 4BE211DD253E4E4800435408 /* 65C02_no_Rockwell_test.bin */; };
4BE34438238389E10058E78F /* AtariSTVideoTests.mm in Sources */ = {isa = PBXBuildFile; fileRef = 4BE34437238389E10058E78F /* AtariSTVideoTests.mm */; };
4BE76CF922641ED400ACD6FA /* QLTests.mm in Sources */ = {isa = PBXBuildFile; fileRef = 4BE76CF822641ED300ACD6FA /* QLTests.mm */; };
4BE8EB6625C750B50040BC40 /* AcornADF.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4BE8EB6425C750B50040BC40 /* AcornADF.cpp */; };
4BE90FFD22D5864800FB464D /* MacintoshVideoTests.mm in Sources */ = {isa = PBXBuildFile; fileRef = 4BE90FFC22D5864800FB464D /* MacintoshVideoTests.mm */; };
4BE9A6B11EDE293000CBCB47 /* zexdoc.com in Resources */ = {isa = PBXBuildFile; fileRef = 4BE9A6B01EDE293000CBCB47 /* zexdoc.com */; };
4BEA525E1DF33323007E74F2 /* Tape.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4BEA525D1DF33323007E74F2 /* Tape.cpp */; };
@ -1788,6 +1789,8 @@
4BE34437238389E10058E78F /* AtariSTVideoTests.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = AtariSTVideoTests.mm; sourceTree = "<group>"; };
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4BE845201F2FF7F100A5EA22 /* CRTC6845.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; name = CRTC6845.hpp; path = 6845/CRTC6845.hpp; sourceTree = "<group>"; };
4BE8EB6425C750B50040BC40 /* AcornADF.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = AcornADF.cpp; sourceTree = "<group>"; };
4BE8EB6525C750B50040BC40 /* AcornADF.hpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.h; path = AcornADF.hpp; sourceTree = "<group>"; };
4BE90FFC22D5864800FB464D /* MacintoshVideoTests.mm */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; path = MacintoshVideoTests.mm; sourceTree = "<group>"; };
4BE9A6B01EDE293000CBCB47 /* zexdoc.com */ = {isa = PBXFileReference; lastKnownFileType = file; name = zexdoc.com; path = Zexall/zexdoc.com; sourceTree = "<group>"; };
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@ -2733,6 +2736,8 @@
children = (
4B74CF7F2312FA9C00500CE8 /* HFV.hpp */,
4B74CF802312FA9C00500CE8 /* HFV.cpp */,
4BE8EB6425C750B50040BC40 /* AcornADF.cpp */,
4BE8EB6525C750B50040BC40 /* AcornADF.hpp */,
);
path = Formats;
sourceTree = "<group>";
@ -4770,6 +4775,7 @@
4B2BFDB21DAEF5FF001A68B8 /* Video.cpp in Sources */,
4BEDA3BF25B25563000C2DBD /* Decoder.cpp in Sources */,
4B4DC82B1D2C27A4003C5BF8 /* SerialBus.cpp in Sources */,
4BE8EB6625C750B50040BC40 /* AcornADF.cpp in Sources */,
4BBFFEE61F7B27F1005F3FEB /* TrackSerialiser.cpp in Sources */,
4BAE49582032881E004BE78E /* CSZX8081.mm in Sources */,
4B0333AF2094081A0050B93D /* AppleDSK.cpp in Sources */,

36
Storage/MassStorage/Formats/AcornADF.cpp Normal file
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@ -0,0 +1,36 @@
//
// AcornADF.cpp
// Clock Signal
//
// Created by Thomas Harte on 31/01/2021.
// Copyright © 2021 Thomas Harte. All rights reserved.
//
#include "AcornADF.hpp"
using namespace Storage::MassStorage;
AcornADF::AcornADF(const std::string &file_name) : file_(file_name) {
// Only one sanity check: is the file a multiple of 256 bytes in size?
// [TODO: and larger than a floppy disk?]
const auto file_size = file_.stats().st_size;
if(file_size & 255) throw std::exception();
}
size_t AcornADF::get_block_size() {
return 256;
}
size_t AcornADF::get_number_of_blocks() {
return size_t(file_.stats().st_size) / 256;
}
std::vector<uint8_t> AcornADF::get_block(size_t address) {
file_.seek(long(address * 256), SEEK_SET);
return file_.read(256);
}
void AcornADF::set_block(size_t address, const std::vector<uint8_t> &contents) {
file_.seek(long(address * 256), SEEK_SET);
file_.write(contents);
}

39
Storage/MassStorage/Formats/AcornADF.hpp Normal file
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@ -0,0 +1,39 @@
//
// AcornADF.hpp
// Clock Signal
//
// Created by Thomas Harte on 31/01/2021.
// Copyright © 2021 Thomas Harte. All rights reserved.
//
#ifndef AcornADF_hpp
#define AcornADF_hpp
#include "../MassStorageDevice.hpp"
#include "../../FileHolder.hpp"
namespace Storage {
namespace MassStorage {
/*!
Provides a @c MassStorageDevice containing an Acorn ADFS image, which is just a
sector dump of an ADFS volume.
*/
class AcornADF: public MassStorageDevice {
public:
AcornADF(const std::string &file_name);
private:
FileHolder file_;
/* MassStorageDevices overrides. */
size_t get_block_size() final;
size_t get_number_of_blocks() final;
std::vector<uint8_t> get_block(size_t address) final;
void set_block(size_t address, const std::vector<uint8_t> &) final;
};
}
}
#endif /* AcornADF_hpp */