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Merge pull request #890 from TomHarte/SpectrumPolish

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Adds Spectrum polish
This commit is contained in:
Thomas Harte 2021-03-23 17:23:15 -04:00 committed by GitHub
commit 3543a25168
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7 changed files with 146 additions and 31 deletions
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2
Analyser/Static/StaticAnalyser.cpp
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@ -138,7 +138,7 @@ static Media GetMediaAndPlatforms(const std::string &file_name, TargetPlatform::
Format( "hfe",
result.disks,
Disk::DiskImageHolder<Storage::Disk::HFE>,
TargetPlatform::Acorn | TargetPlatform::AmstradCPC | TargetPlatform::Commodore | TargetPlatform::Oric)
TargetPlatform::Acorn | TargetPlatform::AmstradCPC | TargetPlatform::Commodore | TargetPlatform::Oric | TargetPlatform::ZXSpectrum)
// HFE (TODO: switch to AllDisk once the MSX stops being so greedy)
Format("img", result.disks, Disk::DiskImageHolder<Storage::Disk::MacintoshIMG>, TargetPlatform::Macintosh) // IMG (DiskCopy 4.2)
Format("image", result.disks, Disk::DiskImageHolder<Storage::Disk::MacintoshIMG>, TargetPlatform::Macintosh) // IMG (DiskCopy 4.2)

4
Machines/Apple/AppleIIgs/Video.cpp
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@ -113,6 +113,10 @@ Video::Video() :
crt_.set_display_type(Outputs::Display::DisplayType::RGB);
crt_.set_visible_area(Outputs::Display::Rect(0.097f, 0.1f, 0.85f, 0.85f));
// Reduce the initial bounce by cueing up the part of the frame that initial drawing actually
// starts with. More or less.
crt_.output_blank(228*63*2);
// Establish the shift lookup table for NTSC -> RGB output.
for(size_t c = 0; c < sizeof(ntsc_delay_lookup_) / sizeof(*ntsc_delay_lookup_); c++) {
const auto old_delay = c >> 2;

81
Machines/Sinclair/Keyboard/Keyboard.cpp
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@ -70,8 +70,74 @@ CharacterMapper::CharacterMapper(Machine machine) : machine_(machine) {}
const uint16_t *CharacterMapper::sequence_for_character(char character) const {
#define KEYS(...) {__VA_ARGS__, MachineTypes::MappedKeyboardMachine::KeyEndSequence}
#define SHIFT(...) {KeyShift, __VA_ARGS__, MachineTypes::MappedKeyboardMachine::KeyEndSequence}
#define SYMSHIFT(...) {KeySymbolShift, __VA_ARGS__, MachineTypes::MappedKeyboardMachine::KeyEndSequence}
#define X {MachineTypes::MappedKeyboardMachine::KeyNotMapped}
static KeySequence zx81_key_sequences[] = {
constexpr KeySequence spectrum_key_sequences[] = {
/* NUL */ X, /* SOH */ X,
/* STX */ X, /* ETX */ X,
/* EOT */ X, /* ENQ */ X,
/* ACK */ X, /* BEL */ X,
/* BS */ SHIFT(Key0), /* HT */ X,
/* LF */ KEYS(KeyEnter), /* VT */ X,
/* FF */ X, /* CR */ KEYS(KeyEnter),
/* SO */ X, /* SI */ X,
/* DLE */ X, /* DC1 */ X,
/* DC2 */ X, /* DC3 */ X,
/* DC4 */ X, /* NAK */ X,
/* SYN */ X, /* ETB */ X,
/* CAN */ X, /* EM */ X,
/* SUB */ X, /* ESC */ X,
/* FS */ X, /* GS */ X,
/* RS */ X, /* US */ X,
/* space */ KEYS(KeySpace), /* ! */ SYMSHIFT(Key1),
/* " */ SYMSHIFT(KeyP), /* # */ SYMSHIFT(Key3),
/* $ */ SYMSHIFT(Key4), /* % */ SYMSHIFT(Key5),
/* & */ SYMSHIFT(Key6), /* ' */ SYMSHIFT(Key7),
/* ( */ SYMSHIFT(Key8), /* ) */ SYMSHIFT(Key9),
/* * */ SYMSHIFT(KeyB), /* + */ SYMSHIFT(KeyK),
/* , */ SYMSHIFT(KeyN), /* - */ SYMSHIFT(KeyJ),
/* . */ SYMSHIFT(KeyM), /* / */ SYMSHIFT(KeyV),
/* 0 */ KEYS(Key0), /* 1 */ KEYS(Key1),
/* 2 */ KEYS(Key2), /* 3 */ KEYS(Key3),
/* 4 */ KEYS(Key4), /* 5 */ KEYS(Key5),
/* 6 */ KEYS(Key6), /* 7 */ KEYS(Key7),
/* 8 */ KEYS(Key8), /* 9 */ KEYS(Key9),
/* : */ SYMSHIFT(KeyZ), /* ; */ SYMSHIFT(KeyO),
/* < */ SYMSHIFT(KeyR), /* = */ SYMSHIFT(KeyL),
/* > */ SYMSHIFT(KeyT), /* ? */ SYMSHIFT(KeyC),
/* @ */ SYMSHIFT(Key2), /* A */ SHIFT(KeyA),
/* B */ SHIFT(KeyB), /* C */ SHIFT(KeyC),
/* D */ SHIFT(KeyD), /* E */ SHIFT(KeyE),
/* F */ SHIFT(KeyF), /* G */ SHIFT(KeyG),
/* H */ SHIFT(KeyH), /* I */ SHIFT(KeyI),
/* J */ SHIFT(KeyJ), /* K */ SHIFT(KeyK),
/* L */ SHIFT(KeyL), /* M */ SHIFT(KeyM),
/* N */ SHIFT(KeyN), /* O */ SHIFT(KeyO),
/* P */ SHIFT(KeyP), /* Q */ SHIFT(KeyQ),
/* R */ SHIFT(KeyR), /* S */ SHIFT(KeyS),
/* T */ SHIFT(KeyT), /* U */ SHIFT(KeyU),
/* V */ SHIFT(KeyV), /* W */ SHIFT(KeyW),
/* X */ SHIFT(KeyX), /* Y */ SHIFT(KeyY),
/* Z */ SHIFT(KeyZ), /* [ */ X,
/* \ */ X, /* ] */ X,
/* ^ */ SYMSHIFT(KeyH), /* _ */ SYMSHIFT(Key0),
/* ` */ X, /* a */ KEYS(KeyA),
/* b */ KEYS(KeyB), /* c */ KEYS(KeyC),
/* d */ KEYS(KeyD), /* e */ KEYS(KeyE),
/* f */ KEYS(KeyF), /* g */ KEYS(KeyG),
/* h */ KEYS(KeyH), /* i */ KEYS(KeyI),
/* j */ KEYS(KeyJ), /* k */ KEYS(KeyK),
/* l */ KEYS(KeyL), /* m */ KEYS(KeyM),
/* n */ KEYS(KeyN), /* o */ KEYS(KeyO),
/* p */ KEYS(KeyP), /* q */ KEYS(KeyQ),
/* r */ KEYS(KeyR), /* s */ KEYS(KeyS),
/* t */ KEYS(KeyT), /* u */ KEYS(KeyU),
/* v */ KEYS(KeyV), /* w */ KEYS(KeyW),
/* x */ KEYS(KeyX), /* y */ KEYS(KeyY),
/* z */ KEYS(KeyZ),
};
constexpr KeySequence zx81_key_sequences[] = {
/* NUL */ X, /* SOH */ X,
/* STX */ X, /* ETX */ X,
/* EOT */ X, /* ENQ */ X,
@ -204,20 +270,23 @@ const uint16_t *CharacterMapper::sequence_for_character(char character) const {
};
#undef KEYS
#undef SHIFT
#undef SYMSHIFT
#undef X
switch(machine_) {
case Machine::ZX81:
case Machine::ZXSpectrum: // TODO: some differences exist for the Spectrum.
return table_lookup_sequence_for_character(zx81_key_sequences, sizeof(zx81_key_sequences), character);
case Machine::ZX80:
return table_lookup_sequence_for_character(zx80_key_sequences, sizeof(zx80_key_sequences), character);
case Machine::ZX81:
return table_lookup_sequence_for_character(zx81_key_sequences, sizeof(zx81_key_sequences), character);
case Machine::ZXSpectrum:
return table_lookup_sequence_for_character(spectrum_key_sequences, sizeof(zx81_key_sequences), character);
}
}
bool CharacterMapper::needs_pause_after_key(uint16_t key) const {
return key != KeyShift;
return key != KeyShift && !(machine_ == Machine::ZXSpectrum && key == KeySymbolShift);
}
Keyboard::Keyboard(Machine machine) : machine_(machine) {

4
Machines/Sinclair/ZXSpectrum/Video.hpp
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@ -323,11 +323,11 @@ template <VideoTiming timing> class Video {
if(line >= 192) return 0xff;
const int time_into_line = time_into_frame_ % timings.cycles_per_line;
if(time_into_line >= 256 || (time_into_line&4)) {
if(time_into_line >= 256 || (time_into_line&8)) {
return 0xff;
}
return last_fetches_[time_into_line & 3];
return last_fetches_[(time_into_line >> 1) & 3];
}
/*!

76
Machines/Sinclair/ZXSpectrum/ZXSpectrum.cpp
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@ -12,6 +12,7 @@
#define LOG_PREFIX "[Spectrum] "
#include "../../../Activity/Source.hpp"
#include "../../MachineTypes.hpp"
#include "../../../Processors/Z80/Z80.hpp"
@ -34,6 +35,7 @@
#include "../../../Analyser/Static/ZXSpectrum/Target.hpp"
#include "../../Utility/MemoryFuzzer.hpp"
#include "../../Utility/Typer.hpp"
#include "../../../ClockReceiver/JustInTime.hpp"
@ -45,17 +47,23 @@ namespace Sinclair {
namespace ZXSpectrum {
using Model = Analyser::Static::ZXSpectrum::Target::Model;
using CharacterMapper = Sinclair::ZX::Keyboard::CharacterMapper;
template<Model model> class ConcreteMachine:
public Activity::Source,
public ClockingHint::Observer,
public Configurable::Device,
public CPU::Z80::BusHandler,
public Machine,
public MachineTypes::AudioProducer,
public MachineTypes::MappedKeyboardMachine,
public MachineTypes::MediaTarget,
public MachineTypes::ScanProducer,
public MachineTypes::TimedMachine,
public CPU::Z80::BusHandler {
public Utility::TypeRecipient<CharacterMapper> {
public:
ConcreteMachine(const Analyser::Static::ZXSpectrum::Target &target, const ROMMachine::ROMFetcher &rom_fetcher) :
Utility::TypeRecipient<CharacterMapper>(Sinclair::ZX::Keyboard::Machine::ZXSpectrum),
z80_(*this),
ay_(GI::AY38910::Personality::AY38910, audio_queue_),
audio_toggle_(audio_queue_),
@ -76,6 +84,10 @@ template<Model model> class ConcreteMachine:
if(!roms[0]) throw ROMMachine::Error::MissingROMs;
memcpy(rom_.data(), roms[0]->data(), std::min(rom_.size(), roms[0]->size()));
// Register for sleeping notifications.
fdc_->set_clocking_hint_observer(this);
tape_player_.set_clocking_hint_observer(this);
// Set up initial memory map.
update_memory_map();
set_video_address();
@ -127,7 +139,7 @@ template<Model model> class ConcreteMachine:
return Plus3ClockRate;
}
// MARK: - TimedMachine
// MARK: - TimedMachine.
void run_for(const Cycles cycles) override {
z80_.run_for(cycles);
@ -154,7 +166,7 @@ template<Model model> class ConcreteMachine:
}
}
// MARK: - ScanProducer
// MARK: - ScanProducer.
void set_scan_target(Outputs::Display::ScanTarget *scan_target) override {
video_->set_scan_target(scan_target);
@ -168,7 +180,7 @@ template<Model model> class ConcreteMachine:
video_->set_display_type(display_type);
}
// MARK: - BusHandler
// MARK: - BusHandler.
forceinline HalfCycles perform_machine_cycle(const CPU::Z80::PartialMachineCycle &cycle) {
using PartialMachineCycle = CPU::Z80::PartialMachineCycle;
@ -317,6 +329,12 @@ template<Model model> class ConcreteMachine:
*cycle.value &= GI::AY38910::Utility::read_data(ay_);
}
// Check for a floating bus read; these are particularly arcane
// on the +2a/+3. See footnote to https://spectrumforeveryone.com/technical/memory-contention-floating-bus/
if((address & 0xf003) == 0x0001) {
*cycle.value &= video_->get_current_fetch();
}
if constexpr (model == Model::Plus3) {
switch(address) {
default: break;
@ -341,8 +359,7 @@ template<Model model> class ConcreteMachine:
z80_.set_interrupt_line(video_.last_valid()->get_interrupt_line());
}
// TODO: sleeping support here.
tape_player_.run_for(duration.as_integral());
if(!tape_player_is_sleeping_) tape_player_.run_for(duration.as_integral());
// Update automatic tape motor control, if enabled; if it's been
// 3 seconds since software last possibly polled the tape, stop it.
@ -356,26 +373,36 @@ template<Model model> class ConcreteMachine:
}
if constexpr (model == Model::Plus3) {
fdc_ += Cycles(duration.as_integral());
if(!fdc_is_sleeping_) fdc_ += Cycles(duration.as_integral());
}
if(typer_) typer_->run_for(duration);
}
void type_string(const std::string &string) override {
Utility::TypeRecipient<CharacterMapper>::add_typer(string);
}
bool can_type(char c) const override {
return Utility::TypeRecipient<CharacterMapper>::can_type(c);
}
public:
// MARK: - Typer
// HalfCycles get_typer_delay(const std::string &) const final {
// return z80_.get_is_resetting() ? Cycles(7'000'000) : Cycles(0);
// }
//
// HalfCycles get_typer_frequency() const final {
// return Cycles(146'250);
// }
// MARK: - Typer.
HalfCycles get_typer_delay(const std::string &) const override {
return z80_.get_is_resetting() ? Cycles(7'000'000) : Cycles(0);
}
HalfCycles get_typer_frequency() const override{
return Cycles(70'908);
}
KeyboardMapper *get_keyboard_mapper() override {
return &keyboard_mapper_;
}
// MARK: - Keyboard
// MARK: - Keyboard.
void set_key_state(uint16_t key, bool is_pressed) override {
keyboard_.set_key_state(key, is_pressed);
}
@ -407,7 +434,14 @@ template<Model model> class ConcreteMachine:
return !media.tapes.empty() || (!media.disks.empty() && model == Model::Plus3);
}
// MARK: - Tape control
// MARK: - ClockingHint::Observer.
void set_component_prefers_clocking(ClockingHint::Source *, ClockingHint::Preference) override {
fdc_is_sleeping_ = fdc_.last_valid()->preferred_clocking() == ClockingHint::Preference::None;
tape_player_is_sleeping_ = tape_player_.preferred_clocking() == ClockingHint::Preference::None;
}
// MARK: - Tape control.
void set_use_automatic_tape_motor_control(bool enabled) {
use_automatic_tape_motor_control_ = enabled;
@ -447,6 +481,12 @@ template<Model model> class ConcreteMachine:
return &speaker_;
}
// MARK: - Activity Source.
void set_activity_observer(Activity::Observer *observer) override {
if constexpr (model == Model::Plus3) fdc_->set_activity_observer(observer);
tape_player_.set_activity_observer(observer);
}
private:
CPU::Z80::Processor<ConcreteMachine, false, false> z80_;
@ -560,6 +600,7 @@ template<Model model> class ConcreteMachine:
// MARK: - Tape.
Storage::Tape::BinaryTapePlayer tape_player_;
bool tape_player_is_sleeping_ = false;
bool use_automatic_tape_motor_control_ = true;
HalfCycles cycles_since_tape_input_read_;
@ -614,6 +655,7 @@ template<Model model> class ConcreteMachine:
// MARK: - Disc.
JustInTimeActor<Amstrad::FDC, 1, 1, Cycles> fdc_;
bool fdc_is_sleeping_ = false;
// MARK: - Automatic startup.
Cycles duration_to_press_enter_;

2
Machines/Utility/Typer.cpp
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@ -134,7 +134,7 @@ bool Typer::type_next_character() {
// MARK: - Character mapper
uint16_t *CharacterMapper::table_lookup_sequence_for_character(KeySequence *sequences, std::size_t length, char character) const {
const uint16_t *CharacterMapper::table_lookup_sequence_for_character(const KeySequence *sequences, std::size_t length, char character) const {
std::size_t ucharacter = size_t((unsigned char)character);
if(ucharacter >= (length / sizeof(KeySequence))) return nullptr;
if(sequences[ucharacter][0] == MachineTypes::MappedKeyboardMachine::KeyNotMapped) return nullptr;

2
Machines/Utility/Typer.hpp
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@ -48,7 +48,7 @@ class CharacterMapper {
with @c length entries, returns the sequence for character @c character if it exists; otherwise
returns @c nullptr.
*/
uint16_t *table_lookup_sequence_for_character(KeySequence *sequences, std::size_t length, char character) const;
const uint16_t *table_lookup_sequence_for_character(const KeySequence *sequences, std::size_t length, char character) const;
};
/*!