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Adds detection of Spectrum-bootable disks.

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This commit is contained in:
Thomas Harte 2021-03-22 19:53:51 -04:00
parent 3c1131a84b
commit b76c923ff4
3 changed files with 40 additions and 3 deletions
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4
Analyser/Static/AmstradCPC/StaticAnalyser.cpp
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@ -11,12 +11,12 @@
#include <algorithm>
#include <cstring>
#include "Target.hpp"
#include "../../../Storage/Disk/Parsers/CPM.hpp"
#include "../../../Storage/Disk/Encodings/MFM/Parser.hpp"
#include "../../../Storage/Tape/Parsers/Spectrum.hpp"
#include "Target.hpp"
namespace {
bool strcmp_insensitive(const char *a, const char *b) {

2
Analyser/Static/StaticAnalyser.cpp
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@ -128,7 +128,7 @@ static Media GetMediaAndPlatforms(const std::string &file_name, TargetPlatform::
Format( "dsk",
result.disks,
Disk::DiskImageHolder<Storage::Disk::CPCDSK>,
TargetPlatform::AmstradCPC | TargetPlatform::Oric) // DSK (Amstrad CPC)
TargetPlatform::AmstradCPC | TargetPlatform::Oric | TargetPlatform::ZXSpectrum) // DSK (Amstrad CPC, etc)
Format("dsk", result.disks, Disk::DiskImageHolder<Storage::Disk::AppleDSK>, TargetPlatform::DiskII) // DSK (Apple II)
Format("dsk", result.disks, Disk::DiskImageHolder<Storage::Disk::MacintoshIMG>, TargetPlatform::Macintosh) // DSK (Macintosh, floppy disk)
Format("dsk", result.mass_storage_devices, MassStorage::HFV, TargetPlatform::Macintosh) // DSK (Macintosh, hard disk)

37
Analyser/Static/ZXSpectrum/StaticAnalyser.cpp
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@ -8,7 +8,9 @@
#include "StaticAnalyser.hpp"
#include "../../../Storage/Disk/Encodings/MFM/Parser.hpp"
#include "../../../Storage/Tape/Parsers/Spectrum.hpp"
#include "Target.hpp"
namespace {
@ -30,6 +32,28 @@ bool IsSpectrumTape(const std::shared_ptr<Storage::Tape::Tape> &tape) {
return false;
}
bool IsSpectrumDisk(const std::shared_ptr<Storage::Disk::Disk> &disk) {
Storage::Encodings::MFM::Parser parser(true, disk);
// Get logical sector 1; the Spectrum appears to support various physical
// sectors as sector 1.
Storage::Encodings::MFM::Sector *boot_sector = nullptr;
uint8_t sector_mask = 0;
while(!boot_sector) {
boot_sector = parser.get_sector(0, 0, sector_mask + 1);
sector_mask += 0x40;
if(!sector_mask) break;
}
if(!boot_sector) return false;
// Test that the contents of the boot sector sum to 3, modulo 256.
uint8_t byte_sum = 0;
for(auto byte: boot_sector->samples[0]) {
byte_sum += byte;
}
return byte_sum == 3;
}
}
Analyser::Static::TargetList Analyser::Static::ZXSpectrum::GetTargets(const Media &media, const std::string &, TargetPlatform::IntType) {
@ -48,6 +72,19 @@ Analyser::Static::TargetList Analyser::Static::ZXSpectrum::GetTargets(const Medi
}
}
if(!media.disks.empty()) {
bool has_spectrum_disk = false;
for(auto &disk: media.disks) {
has_spectrum_disk |= IsSpectrumDisk(disk);
}
if(has_spectrum_disk) {
target->media.disks = media.disks;
target->model = Target::Model::Plus3;
}
}
// If any media survived, add the target.
if(!target->media.empty())
destination.push_back(std::move(target));