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Adds a route for 'DiskII' images to the IIgs.

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This commit is contained in:
Thomas Harte 2020-11-12 17:35:27 -05:00
parent 3813e00ca3
commit ffc9e229b6
1 changed files with 19 additions and 5 deletions
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24
Analyser/Static/DiskII/StaticAnalyser.cpp
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@ -9,6 +9,7 @@
#include "StaticAnalyser.hpp"
#include "../AppleII/Target.hpp"
#include "../AppleIIgs/Target.hpp"
#include "../Oric/Target.hpp"
#include "../Disassembler/6502.hpp"
#include "../Disassembler/AddressMapper.hpp"
@ -18,7 +19,7 @@
namespace {
Analyser::Static::Target *AppleTarget(const Storage::Encodings::AppleGCR::Sector *sector_zero) {
Analyser::Static::Target *AppleIITarget(const Storage::Encodings::AppleGCR::Sector *sector_zero) {
using Target = Analyser::Static::AppleII::Target;
auto *const target = new Target;
@ -31,6 +32,10 @@ Analyser::Static::Target *AppleTarget(const Storage::Encodings::AppleGCR::Sector
return target;
}
Analyser::Static::Target *AppleIIgsTarget() {
return new Analyser::Static::AppleIIgs::Target();
}
Analyser::Static::Target *OricTarget(const Storage::Encodings::AppleGCR::Sector *) {
using Target = Analyser::Static::Oric::Target;
auto *const target = new Target;
@ -46,8 +51,18 @@ Analyser::Static::TargetList Analyser::Static::DiskII::GetTargets(const Media &m
// This analyser can comprehend disks only.
if(media.disks.empty()) return {};
auto &disk = media.disks.front();
TargetList targets;
// If the disk image is too large for a 5.25" disk, map this to the IIgs.
if(disk->get_maximum_head_position() > Storage::Disk::HeadPosition(40)) {
targets.push_back(std::unique_ptr<Analyser::Static::Target>(AppleIIgsTarget()));
targets.back()->media = media;
return targets;
}
// Grab track 0, sector 0: the boot sector.
const auto track_zero = media.disks.front()->get_track_at_position(Storage::Disk::Track::Address(0, Storage::Disk::HeadPosition(0)));
const auto track_zero = disk->get_track_at_position(Storage::Disk::Track::Address(0, Storage::Disk::HeadPosition(0)));
const auto sector_map = Storage::Encodings::AppleGCR::sectors_from_segment(
Storage::Disk::track_serialisation(*track_zero, Storage::Time(1, 50000)));
@ -61,12 +76,11 @@ Analyser::Static::TargetList Analyser::Static::DiskII::GetTargets(const Media &m
// If there's no boot sector then if there are also no sectors at all,
// decline to nominate a machine. Otherwise go with an Apple as the default.
TargetList targets;
if(!sector_zero) {
if(sector_map.empty()) {
return targets;
} else {
targets.push_back(std::unique_ptr<Analyser::Static::Target>(AppleTarget(nullptr)));
targets.push_back(std::unique_ptr<Analyser::Static::Target>(AppleIITarget(nullptr)));
targets.back()->media = media;
return targets;
}
@ -116,7 +130,7 @@ Analyser::Static::TargetList Analyser::Static::DiskII::GetTargets(const Media &m
if(is_oric) {
targets.push_back(std::unique_ptr<Analyser::Static::Target>(OricTarget(sector_zero)));
} else {
targets.push_back(std::unique_ptr<Analyser::Static::Target>(AppleTarget(sector_zero)));
targets.push_back(std::unique_ptr<Analyser::Static::Target>(AppleIITarget(sector_zero)));
}
targets.back()->media = media;
return targets;