Commit Graph

42 Commits

Author SHA1 Message Date
Talarubi a9571ff5b8 Fixed: Restore SPC7110 and S-RTC time properly
Loading and unloading the RTC is a little odd, since it's normally
always powered in the first place. What we want, and what the load()
functions really do, is to resync using the saved timestamps or
reset it. unload() proper doesn't do anything.

However, an interface refactoring after v098 reordered the above
operations, and this (along with a typo, shh!) was causing the already
synced time to be cleared.

I've added checks so that whenever rtc.ram can't be found, load() gets
called with empty arguments to initialise the defaults (like putting
in a fresh battery).
2017-10-24 23:16:22 -04:00
Tim Allen b38a657192 Update to v104r05 release.
byuu says:

Changelog:

  - emulator/random: new array function with more realistic RAM
    initializations
  - emulator/random: both low and high entropy register initializations
    now use PCG
  - gba/player: rumble will time out and disable after being left on for
    500ms; fixes Pokemon Pinball issue
  - ruby/input/udev: fixed rumble effects [ma\_rysia]
  - sfc/system: default to low-entropy randomization of memory

The low-entropy memory randomization is modeled after one of my SHVC
2/1/3 systems. It generates striped patterns in memory, using random
inputs (biased to 0x00/0xff), and has a random chance of corrupting 1-2
bits of random values in the pool of memory (to prevent easy emulator
detection and to match observed results on hardware.)

The reasoning for using PCG on register initializations, is that I don't
believe they're going to have repeating patterns like RAM does anyway.
And register initializations are way more vital.

I want to have the new low-entropy RAM mode tested, so at least for the
next few WIPs, I've set the SNES randomization over to low-entropy.
We'll have to have a long discussion and decide whether we want official
releases to use high-entropy or low-entropy.

Also, I figured out the cause of the Prince of Persia distortion ... I
had the volume under the audio settings tab set to 200%. I didn't
realize there were SNES games that clipped so easily, given how
incredibly weak SNES audio is compared to every other sound source on my
PC. So with no entropy or low-entropy, indeed the game now sounds just
fine.

I can't actually test the udev fixes, so I guess we'll see how that goes
for Screwtape and ma\_rysia.
2017-08-25 00:24:34 +10:00
Tim Allen d621136d69 Update to v104r04 release.
byuu says:

Changelog:

  - higan/emulator: added new Random class with three entropy settings:
    none, low, and high
  - md/vdp: corrected Vcounter readout in interlace mode [MoD]
  - sfc: updated core to use the new Random class; defaults to high
    entropy

No entropy essentially returns 0, unless the random.bias(n) function is
called, in which case, it returns n. In this case, n is meant to be the
"logical/ideal" default value that maximizes compatibility with games.

Low entropy is a very simple entropy modeled after RAM initialization
striping patterns (eg 32 0x00s, followed by 32 0xFFs, repeating
throughout.) It doesn't "glitch" like real hardware does on rare
occasions (parts of the pattern being broken from time to time.) It also
only really returns 0 or ~0. So the entropy is indeed extremely low, and
not very useful at all for detecting bugs. Over time, we can try to
improve this, of course.

High entropy is PCG. This replaces the older, lower-entropy and more
predictable, LFSR. PCG should be more than enough for emulator
randomness, while still being quite fast.

Unfortunately, the bad news ... both no entropy and low entropy fix the
Konami logo popping sound in Prince of Persia, but all three entropy
settings still cause the distortion in-game, especially evident at the
title screen. So ... this may be a more serious bug than first
suspected.
2017-08-24 12:45:24 +10:00
Tim Allen ff3750de4f Update to v103r04 release.
byuu says:

Changelog:

  - fc/apu: $4003,$4007 writes initialize duty counter to 0 instead of 7
  - fc/apu: corrected duty table entries for use with decrementing duty
    counter
  - processor/spc700: emulated the behavior of cycle 3 of (x)+
    instructions to not read I/O registers
      - specifically, this prevents reads from $fd-ff from resetting the
        timers, as observed on real hardware
  - sfc/controller: added ControllerPort class to match Mega Drive
    design
  - sfc/expansion: added ExpansionPort class to match Mega Drive design
  - sfc/system: removed Peripherals class
  - sfc/system: changed `colorburst()` to `cpuFrequency()`; added
    `apuFrequency()`
  - sfc: replaced calls to `system.region == System::Region::*` with
    `Region::*()`
  - sfc/expansion: remove thread from scheduler when device is destroyed
  - sfc/smp: `{read,write}Port` now use a separate 4x8-bit buffer instead
    of underlying APU RAM [hex\_usr]
2017-06-30 14:17:23 +10:00
Tim Allen 8476f35153 Update to v102r28 release.
byuu says:

Changelog:

  - higan: `Emulator::<Platform::load>()` now returns a struct containing
    both a path ID and a string option
  - higan: `Emulator::<Platform::load>()` now takes an optional final
    argument of string options
  - fc: added PAL emulation (finally, only took six years)
  - md: added PAL emulation
  - md: fixed address parameter to `VDP::Sprite::write()`; fixes missing
    sprites in Super Street Fighter II
  - md: emulated HIRQ counter; fixes many games
      - Super Street Fighter II - status bar
      - Altered Beast - status bar
      - Sonic the Hedgehog - Labyrinth Zone - water effect
      - etc.
  - ms: added PAL emulation
  - sfc: added the ability to override the default region auto-detection
  - sfc: removed "system.region" override setting from `Super Famicom.sys`
  - tomoko: added options list to game folder load dialog window
  - tomoko: added the ability to specify game folder load options on the
    command-line

So, basically ... Sega forced a change with the way region detection
works. You end up with games that can run on multiple regions, and the
content changes accordingly. Bare Knuckle in NTSC-J mode will become
Streets of Rage in NTSC-U mode. Some games can even run in both NTSC and
PAL mode.

In my view, there should be a separate ROM for each region a game was
released in, even if the ROM content were identical. But unfortunately
that's not how things were done by anyone else.

So to support this, the higan load dialog now has a drop-down at the
bottom-right, where you can choose the region to load games from. On the
SNES, it defaults to "Auto", which will pull the region setting from the
manifest, or fall back on NTSC. On the Mega Drive ... unfortunately, I
can't auto-detect the region from the ROM header. $1f0 is supposed to
contain a string like "JUE", but instead you get games like Maui Mallard
that put an "A" there, and other such nonsense. Sega was far more lax
than Nintendo with the ROM header validity. So for now at least, you
have to manually select your region every time you play a Mega Drive
game, thus you have "NTSC-J", "NTSC-U", and "PAL". The same goes for the
Master System for the same reason, but there's only "NTSC" and "PAL"
here. I'm not sure if games have a way to detect domestic vs
international consoles.

And for now ... the Famicom is the same as well, with no auto-detection.
I'd sincerely hope iNES has a header bit for the region, but I didn't
bother with updating icarus to support that yet.

The way to pass these parameters on the command-line is to prefix the
game path with "option:", so for example:

    higan "PAL:/path/to/Sonic the Hedgehog (USA, Europe).md"

If you don't provide a prefix, it uses the default (NTSC-J, NTSC, or
Auto.) Obviously, it's not possible to pass parameters with
drag-and-drop, so you will always get the default option in said case.
2017-06-20 22:34:50 +10:00
Tim Allen bdc100e123 Update to v102r02 release.
byuu says:

Changelog:

  - I caved on the `samples[] = {0.0}` thing, but I'm very unhappy about it
      - if it's really invalid C++, then GCC needs to stop accepting it
        in strict `-std=c++14` mode
  - Emulator::Interface::Information::resettable is gone
  - Emulator::Interface::reset() is gone
  - FC, SFC, MD cores updated to remove soft reset behavior
  - split GameBoy::Interface into GameBoyInterface,
    GameBoyColorInterface
  - split WonderSwan::Interface into WonderSwanInterface,
    WonderSwanColorInterface
  - PCE: fixed off-by-one scanline error [hex_usr]
  - PCE: temporary hack to prevent crashing when VDS is set to < 2
  - hiro: Cocoa: removed (u)int(#) constants; converted (u)int(#)
    types to (u)int_(#)t types
  - icarus: replaced usage of unique with strip instead (so we don't
    mess up frameworks on macOS)
  - libco: added macOS-specific section marker [Ryphecha]

So ... the major news this time is the removal of the soft reset
behavior. This is a major!! change that results in a 100KiB diff file,
and it's very prone to accidental mistakes!! If anyone is up for
testing, or even better -- looking over the code changes between v102r01
and v102r02 and looking for any issues, please do so. Ideally we'll want
to test every NES mapper type and every SNES coprocessor type by loading
said games and power cycling to make sure the games are all cleanly
resetting. It's too big of a change for me to cover there not being any
issues on my own, but this is truly critical code, so yeah ... please
help if you can.

We technically lose a bit of hardware documentation here. The soft reset
events do all kinds of interesting things in all kinds of different
chips -- or at least they do on the SNES. This is obviously not ideal.
But in the process of removing these portions of code, I found a few
mistakes I had made previously. It simplifies resetting the system state
a lot when not trying to have all the power() functions call the reset()
functions to share partial functionality.

In the future, the goal will be to come up with a way to add back in the
soft reset behavior via keyboard binding as with the Master System core.
What's going to have to happen is that the key binding will have to send
a "reset pulse" to every emulated chip, and those chips are going to
have to act independently to power() instead of reusing functionality.
We'll get there eventually, but there's many things of vastly greater
importance to work on right now, so it'll be a while. The information
isn't lost ... we'll just have to pull it out of v102 when we are ready.

Note that I left the SNES reset vector simulation code in, even though
it's not possible to trigger, for the time being.

Also ... the Super Game Boy core is still disconnected. To be honest, it
totally slipped my mind when I released v102 that it wasn't connected
again yet. This one's going to be pretty tricky to be honest. I'm
thinking about making a third GameBoy::Interface class just for SGB, and
coming up with some way of bypassing platform-> calls when in this
mode.
2017-01-23 08:04:26 +11:00
Tim Allen bf90bdfcc8 Update to v101r31 release.
byuu says:

Changelog:

  - converted Emulator::Interface::Bind to Emulator::Platform
  - temporarily disabled SGB hooks
  - SMS: emulated Game Gear palette (latching word-write behavior not
    implemented yet)
  - SMS: emulated Master System 'Reset' button, Game Gear 'Start' button
  - SMS: removed reset() functionality, driven by the mappable input now
    instead
  - SMS: split interface class in two: one for Master System, one for
    Game Gear
  - SMS: emulated Game Gear video cropping to 160x144
  - PCE: started on HuC6280 CPU core—so far only registers, NOP
    instruction has been implemented

Errata:

  - Super Game Boy support is broken and thus disabled
  - if you switch between Master System and Game Gear without
    restarting, bad things happen:
      - SMS→GG, no video output on the GG
      - GG→SMS, no input on the SMS

I'm not sure what's causing the SMS\<-\>GG switch bug, having a hard
time debugging it. Help would be very much appreciated, if anyone's up
for it. Otherwise I'll keep trying to track it down on my end.
2017-01-13 12:15:45 +11:00
Tim Allen f3e67da937 Update to v101r19 release.
byuu says:

Changelog:

-   added \~130 new PAL games to icarus (courtesy of Smarthuman
    and aquaman)
-   added all three Korean-localized games to icarus
-   sfc: removed SuperDisc emulation (it was going nowhere)
-   sfc: fixed MSU1 regression where the play/repeat flags were not
    being cleared on track select
-   nall: cryptography support added; will be used to sign future
    databases (validation will always be optional)
-   minor shims to fix compilation issues due to nall changes

The real magic is that we now have 25-30% of the PAL SNES library in
icarus!

Signing will be tricky. Obviously if I put the public key inside the
higan archive, then all anyone has to do is change that public key for
their own releases. And if you download from my site (which is now over
HTTPS), then you don't need the signing to verify integrity. I may just
put the public key on my site on my site and leave it at that, we'll
see.
2016-10-28 08:16:58 +11:00
Tim Allen c50723ef61 Update to v100r15 release.
byuu wrote:

Aforementioned scheduler changes added. Longer explanation of why here:
http://hastebin.com/raw/toxedenece

Again, we really need to test this as thoroughly as possible for
regressions :/
This is a really major change that affects absolutely everything: all
emulation cores, all coprocessors, etc.

Also added ADDX and SUB to the 68K core, which brings us just barely
above 50% of the instruction encoding space completed.

[Editor's note: The "aformentioned scheduler changes" were described in
a previous forum post:

    Unfortunately, 64-bits just wasn't enough precision (we were
    getting misalignments ~230 times a second on 21/24MHz clocks), so
    I had to move to 128-bit counters. This of course doesn't exist on
    32-bit architectures (and probably not on all 64-bit ones either),
    so for now ... higan's only going to compile on 64-bit machines
    until we figure something out. Maybe we offer a "lower precision"
    fallback for machines that lack uint128_t or something. Using the
    booth algorithm would be way too slow.

    Anyway, the precision is now 2^-96, which is roughly 10^-29. That
    puts us far beyond the yoctosecond. Suck it, MAME :P I'm jokingly
    referring to it as the byuusecond. The other 32-bits of precision
    allows a 1Hz clock to run up to one full second before all clocks
    need to be normalized to prevent overflow.

    I fixed a serious wobbling issue where I was using clock > other.clock
    for synchronization instead of clock >= other.clock; and also another
    aliasing issue when two threads share a common frequency, but don't
    run in lock-step. The latter I don't even fully understand, but I
    did observe it in testing.

    nall/serialization.hpp has been extended to support 128-bit integers,
    but without explicitly naming them (yay generic code), so nall will
    still compile on 32-bit platforms for all other applications.

    Speed is basically a wash now. FC's a bit slower, SFC's a bit faster.

The "longer explanation" in the linked hastebin is:

    Okay, so the idea is that we can have an arbitrary number of
    oscillators. Take the SNES:

    - CPU/PPU clock = 21477272.727272hz
    - SMP/DSP clock = 24576000hz
    - Cartridge DSP1 clock = 8000000hz
    - Cartridge MSU1 clock = 44100hz
    - Controller Port 1 modem controller clock = 57600hz
    - Controller Port 2 barcode battler clock = 115200hz
    - Expansion Port exercise bike clock = 192000hz

    Is this a pathological case? Of course it is, but it's possible. The
    first four do exist in the wild already: see Rockman X2 MSU1
    patch. Manifest files with higan let you specify any frequency you
    want for any component.

    The old trick higan used was to hold an int64 counter for each
    thread:thread synchronization, and adjust it like so:

    - if thread A steps X clocks; then clock += X * threadB.frequency
      - if clock >= 0; switch to threadB
    - if thread B steps X clocks; then clock -= X * threadA.frequency
      - if clock <  0; switch to threadA

    But there are also system configurations where one processor has to
    synchronize with more than one other processor. Take the Genesis:

    - the 68K has to sync with the Z80 and PSG and YM2612 and VDP
    - the Z80 has to sync with the 68K and PSG and YM2612
    - the PSG has to sync with the 68K and Z80 and YM2612

    Now I could do this by having an int64 clock value for every
    association. But these clock values would have to be outside the
    individual Thread class objects, and we would have to update every
    relationship's clock value. So the 68K would have to update the Z80,
    PSG, YM2612 and VDP clocks. That's four expensive 64-bit multiply-adds
    per clock step event instead of one.

    As such, we have to account for both possibilities. The only way to
    do this is with a single time base. We do this like so:

    - setup: scalar = timeBase / frequency
    - step: clock += scalar * clocks

    Once per second, we look at every thread, find the smallest clock
    value. Then subtract that value from all threads. This prevents the
    clock counters from overflowing.

    Unfortunately, these oscillator values are psychotic, unpredictable,
    and often times repeating fractions. Even with a timeBase of
    1,000,000,000,000,000,000 (one attosecond); we get rounding errors
    every ~16,300 synchronizations. Specifically, this happens with a CPU
    running at 21477273hz (rounded) and SMP running at 24576000hz. That
    may be good enough for most emulators, but ... you know how I am.

    Plus, even at the attosecond level, we're really pushing against the
    limits of 64-bit integers. Given the reciprocal inverse, a frequency
    of 1Hz (which does exist in higan!) would have a scalar that consumes
    1/18th of the entire range of a uint64 on every single step. Yes, I
    could raise the frequency, and then step by that amount, I know. But
    I don't want to have weird gotchas like that in the scheduler core.

    Until I increase the accuracy to about 100 times greater than a
    yoctosecond, the rounding errors are too great. And since the only
    choice above 64-bit values is 128-bit values; we might as well use
    all the extra headroom. 2^-96 as a timebase gives me the ability to
    have both a 1Hz and 4GHz clock; and run them both for a full second;
    before an overflow event would occur.

Another hastebin includes demonstration code:

    #include <libco/libco.h>

    #include <nall/nall.hpp>
    using namespace nall;

    //

    cothread_t mainThread = nullptr;
    const uint iterations = 100'000'000;
    const uint cpuFreq = 21477272.727272 + 0.5;
    const uint smpFreq = 24576000.000000 + 0.5;
    const uint cpuStep = 4;
    const uint smpStep = 5;

    //

    struct ThreadA {
      cothread_t handle = nullptr;
      uint64 frequency = 0;
      int64 clock = 0;

      auto create(auto (*entrypoint)() -> void, uint frequency) {
        this->handle = co_create(65536, entrypoint);
        this->frequency = frequency;
        this->clock = 0;
      }
    };

    struct CPUA : ThreadA {
      static auto Enter() -> void;
      auto main() -> void;
      CPUA() { create(&CPUA::Enter, cpuFreq); }
    } cpuA;

    struct SMPA : ThreadA {
      static auto Enter() -> void;
      auto main() -> void;
      SMPA() { create(&SMPA::Enter, smpFreq); }
    } smpA;

    uint8 queueA[iterations];
    uint offsetA;
    cothread_t resumeA = cpuA.handle;

    auto EnterA() -> void {
      offsetA = 0;
      co_switch(resumeA);
    }

    auto QueueA(uint value) -> void {
      queueA[offsetA++] = value;
      if(offsetA >= iterations) {
        resumeA = co_active();
        co_switch(mainThread);
      }
    }

    auto CPUA::Enter() -> void { while(true) cpuA.main(); }

    auto CPUA::main() -> void {
      QueueA(1);
      smpA.clock -= cpuStep * smpA.frequency;
      if(smpA.clock < 0) co_switch(smpA.handle);
    }

    auto SMPA::Enter() -> void { while(true) smpA.main(); }

    auto SMPA::main() -> void {
      QueueA(2);
      smpA.clock += smpStep * cpuA.frequency;
      if(smpA.clock >= 0) co_switch(cpuA.handle);
    }

    //

    struct ThreadB {
      cothread_t handle = nullptr;
      uint128_t scalar = 0;
      uint128_t clock = 0;

      auto print128(uint128_t value) {
        string s;
        while(value) {
          s.append((char)('0' + value % 10));
          value /= 10;
        }
        s.reverse();
        print(s, "\n");
      }

      //femtosecond (10^15) =    16306
      //attosecond  (10^18) =   688838
      //zeptosecond (10^21) = 13712691
      //yoctosecond (10^24) = 13712691 (hitting a dead-end on a rounding error causing a wobble)
      //byuusecond? ( 2^96) = (perfect? 79,228 times more precise than a yoctosecond)

      auto create(auto (*entrypoint)() -> void, uint128_t frequency) {
        this->handle = co_create(65536, entrypoint);

        uint128_t unitOfTime = 1;
      //for(uint n : range(29)) unitOfTime *= 10;
        unitOfTime <<= 96;  //2^96 time units ...

        this->scalar = unitOfTime / frequency;
        print128(this->scalar);
        this->clock = 0;
      }

      auto step(uint128_t clocks) -> void { clock += clocks * scalar; }
      auto synchronize(ThreadB& thread) -> void { if(clock >= thread.clock) co_switch(thread.handle); }
    };

    struct CPUB : ThreadB {
      static auto Enter() -> void;
      auto main() -> void;
      CPUB() { create(&CPUB::Enter, cpuFreq); }
    } cpuB;

    struct SMPB : ThreadB {
      static auto Enter() -> void;
      auto main() -> void;
      SMPB() { create(&SMPB::Enter, smpFreq); clock = 1; }
    } smpB;

    auto correct() -> void {
      auto minimum = min(cpuB.clock, smpB.clock);
      cpuB.clock -= minimum;
      smpB.clock -= minimum;
    }

    uint8 queueB[iterations];
    uint offsetB;
    cothread_t resumeB = cpuB.handle;

    auto EnterB() -> void {
      correct();
      offsetB = 0;
      co_switch(resumeB);
    }

    auto QueueB(uint value) -> void {
      queueB[offsetB++] = value;
      if(offsetB >= iterations) {
        resumeB = co_active();
        co_switch(mainThread);
      }
    }

    auto CPUB::Enter() -> void { while(true) cpuB.main(); }

    auto CPUB::main() -> void {
      QueueB(1);
      step(cpuStep);
      synchronize(smpB);
    }

    auto SMPB::Enter() -> void { while(true) smpB.main(); }

    auto SMPB::main() -> void {
      QueueB(2);
      step(smpStep);
      synchronize(cpuB);
    }

    //

    #include <nall/main.hpp>
    auto nall::main(string_vector) -> void {
      mainThread = co_active();

      uint masterCounter = 0;
      while(true) {
        print(masterCounter++, " ...\n");

        auto A = clock();
        EnterA();
        auto B = clock();
        print((double)(B - A) / CLOCKS_PER_SEC, "s\n");

        auto C = clock();
        EnterB();
        auto D = clock();
        print((double)(D - C) / CLOCKS_PER_SEC, "s\n");

        for(uint n : range(iterations)) {
          if(queueA[n] != queueB[n]) return print("fail at ", n, "\n");
        }
      }
    }

...and that's everything.]
2016-07-31 12:11:20 +10:00
Tim Allen ca277cd5e8 Update to v100r14 release.
byuu says:

(Windows: compile with -fpermissive to silence an annoying error. I'll
fix it in the next WIP.)

I completely replaced the time management system in higan and overhauled
the scheduler.

Before, processor threads would have "int64 clock"; and there would
be a 1:1 relationship between two threads. When thread A ran for X
cycles, it'd subtract X * B.Frequency from clock; and when thread B ran
for Y cycles, it'd add Y * A.Frequency from clock. This worked well
and allowed perfect precision; but it doesn't work when you have more
complicated relationships: eg the 68K can sync to the Z80 and PSG; the
Z80 to the 68K and PSG; so the PSG needs two counters.

The new system instead uses a "uint64 clock" variable that represents
time in attoseconds. Every time the scheduler exits, it subtracts
the smallest clock count from all threads, to prevent an overflow
scenario. The only real downside is that rounding errors mean that
roughly every 20 minutes, we have a rounding error of one clock cycle
(one 20,000,000th of a second.) However, this only applies to systems
with multiple oscillators, like the SNES. And when you're in that
situation ... there's no such thing as a perfect oscillator anyway. A
real SNES will be thousands of times less out of spec than 1hz per 20
minutes.

The advantages are pretty immense. First, we obviously can now support
more complex relationships between threads. Second, we can build a
much more abstracted scheduler. All of libco is now abstracted away
completely, which may permit a state-machine / coroutine version of
Thread in the future. We've basically gone from this:

    auto SMP::step(uint clocks) -> void {
      clock += clocks * (uint64)cpu.frequency;
      dsp.clock -= clocks;
      if(dsp.clock < 0 && !scheduler.synchronizing()) co_switch(dsp.thread);
      if(clock >= 0 && !scheduler.synchronizing()) co_switch(cpu.thread);
    }

To this:

    auto SMP::step(uint clocks) -> void {
      Thread::step(clocks);
      synchronize(dsp);
      synchronize(cpu);
    }

As you can see, we don't have to do multiple clock adjustments anymore.
This is a huge win for the SNES CPU that had to update the SMP, DSP, all
peripherals and all coprocessors. Likewise, we don't have to synchronize
all coprocessors when one runs, now we can just synchronize the active
one to the CPU.

Third, when changing the frequencies of threads (think SGB speed setting
modes, GBC double-speed mode, etc), it no longer causes the "int64
clock" value to be erroneous.

Fourth, this results in a fairly decent speedup, mostly across the
board. Aside from the GBA being mostly a wash (for unknown reasons),
it's about an 8% - 12% speedup in every other emulation core.

Now, all of this said ... this was an unbelievably massive change, so
... you know what that means >_> If anyone can help test all types of
SNES coprocessors, and some other system games, it'd be appreciated.

----

Lastly, we have a bitchin' new about screen. It unfortunately adds
~200KiB onto the binary size, because the PNG->C++ header file
transformation doesn't compress very well, and I want to keep the
original resource files in with the higan archive. I might try some
things to work around this file size increase in the future, but for now
... yeah, slightly larger archive sizes, sorry.

The logo's a bit busted on Windows (the Label control's background
transparency and alignment settings aren't working), but works well on
GTK. I'll have to fix Windows before the next official release. For now,
look on my Twitter feed if you want to see what it's supposed to look
like.

----

EDIT: forgot about ICD2::Enter. It's doing some weird inverse
run-to-save thing that I need to implement support for somehow. So, save
states on the SGB core probably won't work with this WIP.
2016-07-30 13:56:12 +10:00
Tim Allen 76a8ecd32a Update to v100r03 release.
byuu says:

Changelog:
- moved Thread, Scheduler, Cheat functionality into emulator/ for
  all cores
- start of actual Mega Drive emulation (two 68K instructions)

I'm going to be rather terse on MD emulation, as it's too early for any
meaningful dialogue here.
2016-07-10 15:28:26 +10:00
Tim Allen 8d5cc0c35e Update to v099r15 release.
byuu says:

Changelog:
- nall::lstring -> nall::string_vector
- added IntegerBitField<type, lo, hi> -- hopefully it works correctly...
- Multitap 1-4 -> Super Multitap 2-5
- fixed SFC PPU CGRAM read regression
- huge amounts of SFC PPU IO register cleanups -- .bits really is lovely
- re-added the read/write(VRAM,OAM,CGRAM) helpers for the SFC PPU
  - but they're now optimized to the realities of the PPU (16-bit data
    sizes / no address parameter / where appropriate)
  - basically used to get the active-display overrides in a unified place;
    but also reduces duplicate code in (read,write)IO
2016-07-04 21:48:17 +10:00
Tim Allen 3a9c7c6843 Update to v099r09 release.
byuu says:

Changelog:
- Emulator::Interface::Medium::bootable removed
- Emulator::Interface::load(bool required) argument removed
  [File::Required makes no sense on a folder]
- Super Famicom.sys now has user-configurable properties (CPU,PPU1,PPU2
  version; PPU1 VRAM size, Region override)
- old nall/property removed completely
- volatile flags supported on coprocessor RAM files now (still not in
  icarus, though)
- (hopefully) fixed SNES Multitap support (needs testing)
- fixed an OAM tiledata range clipping limit in 128KiB VRAM mode (doesn't
  fix Yoshi's Island, sadly)
- (hopefully, again) fixed the input polling bug hex_usr reported
- re-added dialog box for when File::Required files are missing
  - really cool: if you're missing a boot ROM, BIOS ROM, or IPL ROM,
    it warns you immediately
  - you don't have to select a game before seeing the error message
    anymore
- fixed cheats.bml load/save location
2016-06-25 18:53:11 +10:00
Tim Allen f48b332c83 Update to v099r08 release.
byuu says:

Changelog:
- nall/vfs work 100% completed; even SGB games load now
- emulation cores now call load() for the base cartridges as well
- updated port/device handling; portmask is gone; device ID bug should
  be resolved now
- SNES controller port 1 multitap option was removed
- added support for 128KiB SNES PPU VRAM (for now, edit sfc/ppu/ppu.hpp
  VRAM::size=0x10000; to enable)

Overall, nall/vfs was a huge success!! We've substantially reduced
the amount of boilerplate code everywhere, while still allowing (even
easier than before) support for RAM-based game loading/saving. All of
nall/stream is dead and buried.

I am considering removing Emulator::Interface::Medium::id and/or
bootable flag. Or at least, doing something different with it. The
values for the non-bootable GB/BS/ST entries duplicate the ID that is
supposed to be unique. They are for GB/GBC and WS/WSC. Maybe I'll use
this as the hardware revision selection ID, and then gut non-bootable
options. There's really no reason for that to be there. I think at one
point I was using it to generate library tabs for non-bootable systems,
but we don't do that anymore anyway.

Emulator::Interface::load() may not need the required flag anymore ... it
doesn't really do anything right now anyway.

I have a few reasons for having the cores load the base cartridge. Most
importantly, it is going to enable a special mode for the WonderSwan /
WonderSwan Color in the future. If we ever get the IPLROMs dumped ... it's
possible to boot these systems with no games inserted to set user profile
information and such. There are also other systems that may accept being
booted without a cartridge. To reach this state, you would load a game and
then cancel the load dialog. Right now, this results in games not loading.

The second reason is this prevents nasty crashes when loading fails. So
if you're missing a required manifest, the emulator won't die a violent
death anymore. It's able to back out at any point.

The third reason is consistency: loading the base cartridge works the
same as the slot cartridges.

The fourth reason is Emulator::Interface::open(uint pathID)
values. Before, the GB, SB, GBC modes were IDs 1,2,3 respectively. This
complicated things because you had to pass the correct ID. But now
instead, Emulator::Interface::load() returns maybe<uint> that is nothing
when no game is selected, and a pathID for a valid game. And now open()
can take this ID to access this game's folder contents.

The downside, which is temporary, is that command-line loading is
currently broken. But I do intend on restoring it. In fact, I want to do
better than before and allow multi-cart booting from the command-line by
specifying the base cartridge and then slot cartridges. The idea should
be pretty simple: keep a queue of pending filenames that we fill from
the command-line and/or drag-and-drop operations on the main window,
and then empty out the queue or prompt for load dialogs from the UI
when booting a system. This also might be a bit more unorthodox compared
to the traditional emulator design of "loadGame(filename)", but ... oh
well. It's easy enough still.

The port/device changes are fun. We simplified things quite a bit. The
portmask stuff is gone entirely. While ports and devices keep IDs,
this is really just sugar-coating so UIs can use for(auto& port :
emulator->ports) and access port.id; rather than having to use for(auto
n : range(emulator->ports)) { auto& port = emulator->ports[n]; ... };
but they should otherwise generally be identical to the order they appear
in their respective ranges. Still, don't rely on that.

Input::id is gone. There was no point since we also got rid of the nasty
Input::order vector. Since I was in here, I went ahead and caved on the
pedantics and renamed Input::guid to Input::userData.

I removed the SNES controller port 1 multitap option. Basically, the only
game that uses this is N-warp Daisakusen and, no offense to d4s, it's
not really a good game anyway. It's just a quick demo to show 8-players
on the SNES. But in the UI, all it does is confuse people into wasting
time mapping a controller they're never going to use, and they're going
to wonder which port to use. If more compelling use cases for 8-players
comes about, we can reconsider this. I left all the code to support this
in place, so all you have to do is uncomment one line to enable it again.

We now have dsnes emulation! :D
If you change PPU::VRAM::size to 0x10000 (words), then you should now
have 128KiB of VRAM. Even better, it serializes the used-VRAM size,
so your save states shouldn't crash on you if you swap between the two
(though if you try this, you're nuts.)

Note that this option does break commercial software. Yoshi's Island in
particular. This game is setting A15 on some PPU register writes, but
not on others. The end result of this is things break horribly in-game.

Also, this option is causing a very tiny speed hit for obvious reasons
with the variable masking value (I'm even using size-1 for now.) Given
how niche this is, I may just leave it a compile-time constant to avoid
the overhead cost. Otherwise, if we keep the option, then it'll go into
Super Famicom.sys/manifest.bml ... I'll flesh that out in the near-future.

----

Finally, some fun for my OCD ... my monitor suddenly cut out on me
in the middle of working on this WIP, about six hours in of non-stop
work. Had to hit a bunch of ctrl+alt+fN commands (among other things)
and trying to log in headless on another TTY to do issue commands,
trying to recover the display. Finally power cycled the monitor and it
came back up. So all my typing ended up going to who knows where.

Usually this sort of thing terrifies me enough that I scrap a WIP and
start over to ensure I didn't screw anything up during the crashed screen
when hitting keys randomly.

Obviously, everything compiles and appears to work fine. And I know
it's extremely paranoid, but OCD isn't logical, so ... I'm going
to go over every line of the 100KiB r07->r08 diff looking for any
corruption/errors/whatever.

----

Review finished.

r08 diff review notes:
- fc/controller/gamepad/gamepad.cpp:
  use uint device = ID::Device::Gamepad; not id = ...;
- gb/cartridge/cartridge.hpp:
  remove redundant uint _pathID; (in Information::pathID already)
- gb/cartridge/cartridge.hpp:
  pull sha256 inside Information
- sfc/cartridge/load/cpp:
  add " - Slot (A,B)" to interface->load("Sufami Turbo"); to be more
  descriptive
- sfc/controller/gamepad/gamepad.cpp:
  use uint device = ID::Device::Gamepad; not id = ...;
- sfc/interface/interface.cpp:
  remove n variable from the Multitap device input generation loop
  (now unused)
- sfc/interface/interface.hpp:
  put struct Port above struct Device like the other classes
- ui-tomoko:
  cheats.bml is reading from/writing to mediumPaths(0) [system folder
  instead of game folder]
- ui-tomoko:
  instead of mediumPaths(1) - call emulator->metadataPathID() or something
  like that
2016-06-24 22:16:53 +10:00
Tim Allen ccd8878d75 Update to v099r07 release.
byuu says:

Changelog:
- (hopefully) fixed BS Memory and Sufami Turbo slot loading
- ported GB, GBA, WS cores to use nall/vfs
- completely removed loadRequest, saveRequest functionality from
  Emulator::Interface and ui-tomoko
  - loadRequest(folder) is now load(folder)
- save states now use a shared Emulator::SerializerVersion string
  - whenever this is bumped, all older states will break; but this makes
    bumping state versions way easier
  - also, the version string makes it a lot easier to identify
    compatibility windows for save states
- SNES PPU now uses uint16 vram[32768] for memory accesses [hex_usr]

NOTE: Super Game Boy loading is currently broken, and I'm not entirely
sure how to fix it :/
The file loading handoff was -really- complicated, and so I'm kind of
at a loss ... so for now, don't try it.
Everything else should theoretically work, so please report any bugs
you find.

So, this is pretty much it. I'd be very curious to hear feedback from
people who objected to the old nall/stream design, whether they are
happy with the new file loading system or think it could use further
improvements.

The 16-bit VRAM turned out to be a wash on performance (roughly the same
as before. 1fps slower on Zelda 3, 1fps faster on Yoshi's Island.) The
main reason for this was because Yoshi's Island was breaking horribly
until I changed the vramRead, vramWrite functions to take uint15 instead
of uint16.

I suspect the issue is we're using uint16s in some areas now that need
to be uint15, and this game is setting the VRAM address to 0x8000+,
causing us to go out of bounds on memory accesses.

But ... I want to go ahead and do something cute for fun, and just because
we can ... and this new interface is so incredibly perfect for it!! I
want to support an SNES unit with 128KiB of VRAM. Not out of the box,
but as a fun little tweakable thing. The SNES was clearly designed to
support that, they just didn't use big enough VRAM chips, and left one
of the lines disconnected. So ... let's connect it anyway!

In the end, if we design it right, the only code difference should be
one area where we mask by 15-bits instead of by 16-bits.
2016-06-24 22:09:30 +10:00
Tim Allen 875f031182 Update to v099r06 release.
byuu says:

Changelog:
- Super Famicom core converted to use nall/vfs
  - excludes Super Game Boy; since that's invoked from inside the GB core

This was definitely the major obstacle to test nall/vfs'
applicability. Things worked out pretty great in the end.

We went from 22.0KiB (cartridge) + 18.6KiB (interface) to 24.5KiB
(cartridge) + 11.4KiB (interface). Or 40.7KiB to 36.0KiB. This removes
a very large source of indirection. Before it was: "coprocessor <=>
cartridge <=> interface" for loading and saving data, and now it's just
"coprocessor <=> cartridge". And it may make sense to eventually turn
this into just "cartridge -> coprocessor" by making each coprocessor
class handle its own markup parsing.

It's nice to have all the manifest parsing in one location (well, sans
MSU1); but it's also nice for loading/unloading to be handled by each
coprocessor itself. So I'll have to think longer about that one.

I've also started handling Interface::save() differently. Instead of
keeping track of memory IDs and filenames, and iterating through that
vector of objects ... instead I now have a system that mirrors the markup
parsing on loading, but handles saving instead. This was actually the
reason the code size savings weren't more significant, but I like this
style more. As before, it removes an extra level of indirection.

So ... next up, I need to port over the GB, then GBA, then WS
cores. These shouldn't take too long since they're all very simple with
just ROM+RAM(+RTC) right now. Then get the SGB callbacks using vfs. Then
after that, gut all the old stream stuff from nall and higan. Kill the
(load,save)Request stuff, rename the load(Gamepak)Request to something
simpler, and then we should be good.

Anyway ... these are some huge changes.
2016-06-24 22:01:03 +10:00
Tim Allen 44a8c5a2b4 Update to v099r03 release.
byuu says:

Changelog:
- finished cleaning up the SFC core to my new coding conventions
- removed sfc/controller/usart (superseded by 21fx)
- hid Synchronize Video option from the menu (still in the configuration
  file)

Pretty much the only minor detail left is some variable names in the
SA-1 core that really won't look good at all if I move to camelCase,
so I'll have to rethink how I handle those. It's probably a good area
to attempt using BitFields, to see how it impacts performance. But I'll
do that in a test branch first.

But for the most part, this should be the end of the gigantic diffs (this
one was 174KiB), at least for the SFC/WS cores. Still have the FC/GB/GBA
cores to clean up more fully. Assuming we don't spot any new regressions,
we should be ~95% out of the woods on code cleanups breaking things.
2016-06-17 23:03:54 +10:00
Tim Allen ae5b4c3bb3 Update to v099r01 release.
byuu says:

Changelog:
- massive cleanups and optimizations on the PPU core
- ~9% speedup over v099 official

This is pretty much it for the low-hanging fruit of speeding up higan. Any
more gains from this point will be extremely hard-fought, unfortunately.
2016-06-14 20:51:54 +10:00
Tim Allen e2ee6689a0 Update to v098r06 release.
byuu says:

Changelog:
- emulation cores now refresh video from host thread instead of
  cothreads (fix AMD crash)
- SFC: fixed another bug with leap year months in SharpRTC emulation
- SFC: cleaned up camelCase on function names for
  armdsp,epsonrtc,hitachidsp,mcc,nss,sharprtc classes
- GB: added MBC1M emulation (requires manually setting mapper=MBC1M in
  manifest.bml for now, sorry)
- audio: implemented Emulator::Audio mixer and effects processor
- audio: implemented Emulator::Stream interface
  - it is now possible to have more than two audio streams: eg SNES
    + SGB + MSU1 + Voicer-Kun (eventually)
- audio: added reverb delay + reverb level settings; exposed balance
  configuration in UI
- video: reworked palette generation to re-enable saturation, gamma,
  luminance adjustments
- higan/emulator.cpp is gone since there was nothing left in it

I know you guys are going to say the color adjust/balance/reverb stuff
is pointless. And indeed it mostly is. But I like the idea of allowing
some fun special effects and configurability that isn't system-wide.

Note: there seems to be some kind of added audio lag in the SGB
emulation now, and I don't really understand why. The code should be
effectively identical to what I had before. The only main thing is that
I'm sampling things to 48000hz instead of 32040hz before mixing. There's
no point where I'm intentionally introducing added latency though. I'm
kind of stumped, so if anyone wouldn't mind taking a look at it, it'd be
much appreciated :/

I don't have an MSU1 test ROM, but the latency issue may affect MSU1 as
well, and that would be very bad.
2016-04-22 23:35:51 +10:00
Tim Allen a2d3b8ba15 Update to v098r04 release.
byuu says:

Changelog:
- SFC: fixed behavior of 21fx $21fe register when no device is connected
  (must return zero)
- SFC: reduced 21fx buffer size to 1024 bytes in both directions to
  mirror the FT232H we are using
- SFC: eliminated dsp/modulo-array.hpp [1]
- higan: implemented higan/video interface and migrated all cores to it
  [2]

[1] the echo history buffer was 8-bytes, so there was no need for it at
all here. Not sure what I was thinking. The BRR buffer was 12-bytes, and
has very weird behavior ... but there's only a single location in the
code where it actually writes to this buffer. It's much easier to just
write to the buffer three times there instead of implementing an entire
class just to abstract away two lines of code. This change actually
boosted the speed from ~124.5fps to around ~127.5fps, but that's within
the margin of error for GCC. I doubt it's actually faster this way.

The DSP core could really use a ton of work. It comes from a port of
blargg's spc_dsp to my coding style, but he was extremely fond of using
32-bit signed integers everywhere. There's a lot of opportunity to
remove red tape masking by resizing the variables to their actual state
sizes.

I really need to find where I put spc_dsp6.sfc from blargg. It's a great
test to verify if I've made any mistakes in my implementation that would
cause regressions. Don't suppose anyone has it?

[2] so again, the idea is that higan/audio and higan/video are going to
sit between the emulation cores and the user interfaces. The hope is to
output raw encoding data from the emulation cores without having to
worry about the video display format (generally 24-bit RGB) of the host
display. And also to avoid having to repeat myself with eg three
separate implementations of interframe blending, and so on.

Furthermore, the idea is that the user interface can configure its side
of the settings, and the emulation cores can configure their sides.
Thus, neither has to worry about the other end. And now we can spin off
new user interfaces much easier without having to mess with all of these
things.

Right now, I've implemented color emulation, interframe blending and
SNES horizontal color bleed. I did not implement scanlines (and
interlace effects for them) yet, but I probably will at some point.

Further, for right now, the WonderSwan/Color screen rotation is busted
and will only show games in the horizontal orientation. Obviously this
must be fixed before the next official release, but I'll want to think
about how to implement it.

Also, the SNES light gun pointers are missing for now.

Things are a bit messy right now as I've gone through several revisions
of how to handle these things, so a good house cleaning is in order once
everything is feature-complete again. I need to sit down and think
through how and where I want to handle things like light gun cursors,
LCD icons, and maybe even rasterized text messages.

And obviously ... higan/audio is still just nall::DSP's headers. I need
to revamp that whole interface. I want to make it quite powerful with
a true audio mixer so I can handle things like
SNES+SGB+MSU1+Voicer-Kun+SNES-CD (five separate audio streams at once.)

The video system has the concept of "effects" for things like color
bleed and interframe blending. I want to extend on this with useful
other effects, such as NTSC simulation, maybe bringing back my mini-HQ2x
filter, etc. I'd also like to restore the saturation/gamma/luma
adjustment sliders ... I always liked allowing people to compensate for
their displays without having to change settings system-wide. Lastly,
I've always wanted to see some audio effects. Although I doubt we'll
ever get my dream of CoreAudio-style profiles, I'd like to get some
basic equalizer settings and echo/reverb effects in there.
2016-04-12 07:29:56 +10:00
Tim Allen 1929ad47d2 Update to v098r03 release.
byuu says:

It took several hours, but I've rebuilt much of the SNES' bus memory
mapping architecture.

The new design unifies the cartridge string-based mapping
("00-3f,80-bf:8000-ffff") and internal bus.map calls. The map() function
now has an accompanying unmap() function, and instead of a fixed 256
callbacks, it'll scan to find the first available slot. unmap() will
free slots up when zero addresses reference a given slot.

The controllers and expansion port are now both entirely dynamic.
Instead of load/unload/power/reset, they only have the constructor
(power/reset/load) and destructor (unload). What this means is you can
now dynamically change even expansion port devices after the system is
loaded.

Note that this is incredibly dangerous and stupid, but ... oh well. The
whole point of this was for 21fx. There's no way to change the expansion
port device prior to loading a game, but if the 21fx isn't active, then
the reset vector hijack won't work. Now you can load a 21fx game, change
the expansion port device, and simply reset the system to active the
device.

The unification of design between controller port devices and expansion
port devices is nice, and overall this results in a reduction of code
(all of the Mapping stuff in Cartridge is gone, replaced with direct bus
mapping.) And there's always the potential to expand this system more in
the future now.

The big missing feature right now is the ability to push/pop mappings.
So if you look at how the 21fx does the reset vector, you might vomit
a little bit. But ... it works.

Also changed exit(0) to _exit(0) in the POSIX version of nall::execute.

[The _exit(0) thing is an attempt to make higan not crash when it tries
to launch icarus and it's not on $PATH. The theory is that higan forks,
then the child tries to exec icarus and fails, so it exits, all the
unique_ptrs clean up their resources and tell the X server to free
things the parent process is still using. Calling _exit() prevents
destructors from running, and seems to prevent the problem. -Ed.]
2016-04-09 20:21:18 +10:00
Tim Allen 19e1d89f00 Update to v098r01 release.
byuu says:

Changelog:
- SFC: balanced profile removed
- SFC: performance profile removed
- SFC: code for handling non-threaded CPU, SMP, DSP, PPU removed
- SFC: Coprocessor, Controller (and expansion port) shared Thread code
  merged to SFC::Cothread
  - Cothread here just means "Thread with CPU affinity" (couldn't think
    of a better name, sorry)
- SFC: CPU now has vector<Thread*> coprocessors, peripherals;
  - this is the beginning of work to allow expansion port devices to be
    dynamically changed at run-time
- ruby: all audio drivers default to 48000hz instead of 22050hz now if
  no frequency is assigned
  - note: the WASAPI driver can default to whatever the native frequency
    is; doesn't have to be 48000hz
- tomoko: removed the ability to change the frequency from the UI (but
  it will display the frequency used)
- tomoko: removed the timing settings panel
  - the goal is to work toward smooth video via adaptive sync
  - the model is broken by not being in control of the audio frequency
    anyway
  - it's further broken by PAL running at 50hz and WSC running at 75hz
  - it was always broken anyway by SNES interlace timing varying from
    progressive timing
- higan: audio/ stub created (for now, it's just nall/dsp/ moved here
  and included as a header)
- higan: video/ stub created
- higan/GNUmakefile: now includes build rules for essential components
  (libco, emulator, audio, video)

The audio changes are in preparation to merge wareya's awesome WASAPI
work without the need for the nall/dsp resampler.
2016-04-09 13:40:12 +10:00
Tim Allen 25eaaa82f4 Update to v097r31 release.
byuu says:

Changelog:
- WS: fixed sprite window clipping (again)
- WS: don't set IRQ status bits of IRQ enable bits are clear
- SFC: signed/unsigned -> int/uint for DSP core
- SFC: removed eBoot
- SFC: added 21fx (not the same as the old precursor to MSU1; just
  reusing the name)

Note: XI Little doesn't seem to be fixed after all ... but the other
three are. So I guess we're at 13 bugs :( And holy shit that music when
you choose a menu option is one of the worst sounds I've ever heard in
my life >_<
2016-03-29 20:15:01 +11:00
Tim Allen 3d3ac8c1db Update to v097r22 release.
byuu says:

Changelog:
- WS: fixed lods, scas instructions
- WS: implemented missing GRP4 instructions
- WS: fixed transparency for screen one
- WSC: added color-mode PPU rendering
- WS+WSC: added packed pixel mode support
- WS+WSC: added dummy sound register reads/writes
- SFC: added threading to SuperDisc (it's hanging for right now; need to
  clear IRQ on $21e2 writes)

SuperDisc Timer and Sound Check were failing before due to not turning
off IRQs on $21e4 clear, so I'm happy that's fixed now.

Riviera starts now, and displays the first intro screen before crashing.
Huge, huge amounts of corrupted graphics, though. This game's really
making me work for it :(

No color games seem fully playable yet, but a lot of monochrome and
color games are now at least showing more intro screen graphics before
dying.

This build defaults to horizontal orientation, but I left the inputs
bound to vertical orientation. Whoops. I still need to implement
a screen flip key binding.
2016-03-13 11:22:14 +11:00
Tim Allen b0d2f5033e Update to v097r21 release.
byuu says:

Changelog:
- icarus: WS/C detects RAM type/size heuristically now
- icarus: WS/C uses ram type=$type instead of $type
- WS: use back color instead of white for backdrop
- WS: fixed sprite count limit; removes all the garbled sprites from
  GunPey
- WS: hopefully fixed sprite priority with screen 2
- WS: implemented keypad polling; GunPey is now fully playable
- SNES: added Super Disc expansion port device (doesn't do anything,
  just for testing)

Note: WS is hard-coded to vertical orientation right now. But there's
basic code in there for all the horizontal stuff.
2016-03-13 11:22:14 +11:00
Tim Allen 7dc62e3a69 Update to v097r19 release.
byuu says:

Changelog:
- fixed nall/windows/guard.hpp
- fixed hiro/(windows,gtk)/header.hpp
- fixed Famicom PPU OAM reads (mask the correct bits when writing)
  [hex_usr]
- removed the need for (system := system) lines from higan/GNUmakefile
- added "All" option to filetype dropdown for ROM loading
  - allows loading GBC games in SGB mode (and technically non-GB(C)
    games, which will obviously fail to do anything)
- loki can load and play game folders now (command-line only) (extremely
  unimpressive; don't waste your time :P)
  - the input is extremely hacked in as a quick placeholder; not sure
    how I'm going to do mapping yet for it
2016-03-13 11:22:14 +11:00
Tim Allen 6c83329cae Update to v097r13 release.
byuu says:

I refactored my schedulers. Added about ten lines to each scheduler, and
removed about 100 lines of calling into internal state in the scheduler
for the FC,SFC cores and about 30-40 lines for the other cores. All of
its state is now private.

Also reworked all of the entry points to static auto Enter() and auto
main(). Where Enter() handles all the synchronization stuff, and main()
doesn't need the while(true); loop forcing another layer of indentation
everywhere.

Took a few hours to do, but totally worth it. I'm surprised I didn't do
this sooner.

Also updated icarus gmake install rule to copy over the database.
2016-02-09 22:51:12 +11:00
Tim Allen 32a95a9761 Update to v097r12 release.
byuu says:

Nothing WS-related this time.

First, I fixed expansion port device mapping. On first load, it was
mapping the expansion port device too late, so it ended up not taking
effect. I had to spin out the logic for that into
Program::connectDevices(). This was proving to be quite annoying while
testing eBoot (SNES-Hook simulation.)

Second, I fixed the audio->set(Frequency, Latency) functions to take
(uint) parameters from the configuration file, so the weird behavior
around changing settings in the audio panel should hopefully be gone
now.

Third, I rewrote the interface->load,unload functions to call into the
(Emulator)::System::load,unload functions. And I have those call out to
Cartridge::load,unload. Before, this was inverted, and Cartridge::load()
was invoking System::load(), which I felt was kind of backward.

The Super Game Boy really didn't like this change, however. And it took
me a few hours to power through it. Before, I had the Game Boy core
dummying out all the interface->(load,save)Request calls, and having the
SNES core make them for it. This is because the folder paths and IDs
will be different between the two cores.

I've redesigned things so that ICD2's Emulator::Interface overloads
loadRequest and saveRequest, and translates the requests into new
requests for the SuperFamicom core. This allows the Game Boy code to do
its own loading for everything without a bunch of Super Game Boy special
casing, and without any awkwardness around powering on with no cartridge
inserted.

This also lets the SNES side of things simply call into higher-level
GameBoy::interface->load,save(id, stream) functions instead of stabbing
at the raw underlying state inside of various Game Boy core emulation
classes. So things are a lot better abstracted now.
2016-02-08 14:17:59 +11:00
Tim Allen f1ebef2ea8 Update to v097r01 release.
byuu says:

A minor WIP to get us started.

Changelog:
- System::Video merged to PPU::Video
- System::Audio merged to DSP::Audio
- System::Configuration merged to Interface::Settings
- created emulator/emulator.cpp and accompanying object file for shared
  code between all cores

Currently, emulator.cpp just holds a videoColor() function that takes
R16G16B16, performs gamma/saturation/luma adjust, and outputs
(currently) A8R8G8B8. It's basically an internal function call for cores
to use when generating palette entries. This code used to exist inside
ui-tomoko/program/interface.cpp, but we have to move it internal for
software display emulation. But in the future, we could add other useful
cross-core functionality here.
2016-01-23 18:29:34 +11:00
Tim Allen 12df278c5b Update to v096r08 release.
byuu says:

Changelog:
- FC: scanline emulation support added
- SFC: balanced profile compiles again
- SFC: performance profile compiles again
- GB,GBC: more fixes to pass blargg's 07, 08, 11 APU tests
- tomoko: added input loss { pause, allow-input } options
- tomoko: refactored settings video menu options to { Video Scale, Video
  Emulation, Video Shader }
- icarus: connected { About, Preferences, Quit } application menu options
2016-01-15 21:28:51 +11:00
Tim Allen cec33c1d0f Update to v096r07 release.
byuu says:

Changelog:
- configuration files are now stored in localpath() instead of configpath()
- Video gamma/saturation/luminance sliders are gone now, sorry
- added Video Filter->Blur Emulation [1]
- added Video Filter->Scanline Emulation [2]
- improvements to GBA audio emulation (fixes Minish Cap) [Jonas Quinn]

[1] For the Famicom, this does nothing. For the Super Famicom, this
performs horizontal blending for proper pseudo-hires translucency. For
the Game Boy, Game Boy Color, and Game Boy Advance, this performs
interframe blending (each frame is the average of the current and
previous frame), which is important for things like the GBVideoPlayer.

[2] Right now, this only applies to the Super Famicom, but it'll come to
the Famicom in the future. For the Super Famicom, this option doesn't
just add scanlines, it simulates the phosphor decay that's visible in
interlace mode. If you observe an interlaced game like RPM Racing on
a real SNES, you'll notice that even on perfectly still screens, the
image appears to shake. This option emulates that effect.

Note 1: the buffering right now is a little sub-optimal, so there will
be a slight speed hit with this new support. Since the core is now
generating native ARGB8888 colors, it might as well call out to the
interface to lock/unlock/refresh the video, that way it can render
directly to the screen. Although ... that might not be such a hot idea,
since the GBx interframe blending reads from the target buffer, and that
tends to be a catastrophic option for performance.

Note 2: the balanced and performance profiles for the SNES are
completely busted again. This WIP took 6 1/2 hours, and I'm exhausted.
Very much not looking forward to working on those, since those two have
all kinds of fucked up speedup tricks for non-interlaced and/or
non-hires video modes.

Note 3: if you're on Windows and you saved your system folders somewhere
else, now'd be a good time to move them to %localappdata%/higan
2016-01-15 21:07:57 +11:00
Tim Allen 47d4bd4d81 Update to v096r01 release.
byuu says:

Changelog:

- restructured the project and removed a whole bunch of old/dead
  directives from higan/GNUmakefile
- huge amounts of work on hiro/cocoa (compiles but ~70% of the
  functionality is commented out)
- fixed a masking error in my ARM CPU disassembler [Lioncash]
- SFC: decided to change board cic=(411,413) back to board
  region=(ntsc,pal) ... the former was too obtuse

If you rename Boolean (it's a problem with an include from ruby, not
from hiro) and disable all the ruby drivers, you can compile an
OS X binary, but obviously it's not going to do anything.

It's a boring WIP, I just wanted to push out the project structure
change now at the start of this WIP cycle.
2015-12-30 17:54:59 +11:00
Tim Allen 4e2eb23835 Update to v093 release.
byuu says:

Changelog:
- added Cocoa target: higan can now be compiled for OS X Lion
  [Cydrak, byuu]
- SNES/accuracy profile hires color blending improvements - fixes
  Marvelous text [AWJ]
- fixed a slight bug in SNES/SA-1 VBR support caused by a typo
- added support for multi-pass shaders that can load external textures
  (requires OpenGL 3.2+)
- added game library path (used by ananke->Import Game) to
  Settings->Advanced
- system profiles, shaders and cheats database can be stored in "all
  users" shared folders now (eg /usr/share on Linux)
- all configuration files are in BML format now, instead of XML (much
  easier to read and edit this way)
- main window supports drag-and-drop of game folders (but not game files
  / ZIP archives)
- audio buffer clears when entering a modal loop on Windows (prevents
  audio repetition with DirectSound driver)
- a substantial amount of code clean-up (probably the biggest
  refactoring to date)

One highly desired target for this release was to default to the optimal
drivers instead of the safest drivers, but because AMD drivers don't
seem to like my OpenGL 3.2 driver, I've decided to postpone that. AMD
has too big a market share. Hopefully with v093 officially released, we
can get some public input on what AMD doesn't like.
2013-08-18 13:21:14 +10:00
Tim Allen 29ea5bd599 Update to v092r09 release.
byuu says:

This will be another massive diff from the previous version.

All of higan was updated to use the new foo& bar syntax, and I also
updated switch statements to be consistent as well (but not in the
disassemblers, was starting to get an RSI just from what I already did.)

phoenix/{windows, cocoa, qt} need to be updated to use "string foo"
instead of "const string& foo", and after that, the major diffs should
be finished.

This archive is the first time I'm posting my copy-on-write,
size+capacity nall::string class, so any feedback on that is welcome as
well.
2013-05-05 19:21:30 +10:00
Tim Allen 5b4bbf5045 Update to v092r05 release.
byuu says:

This release should be polished enough for a general release.

This release should be polished enough for a general release.

Anyone with a real, clean Mac up for posting compiled binaries?
Preferably compile with "make profile=balanced" In fact, I'd like it if
someone were willing to host a "higan for Mac" page, with binaries of
each of the latest releases. Only really needed for major official
releases, but it'd be preferable to have the builds updated as soon as
possible after I post new builds.

Changelog:
- no more keyboard chimes when pressing keys
- status bar added, fully functional
- Label::minimumSize() takes frame into account (but note a few places
  hard-code raw Font::size(), so a few text labels are still clipped)
- resizing the main window looks smooth regardless of whether a game is
  running or not
  - currently, resizing the window pauses the emulation. Allowing it to
    run the main loop was lagging out the window resize process too much
    to be worth it

Additional OS X integration enhancements:
- closing the main window unloads the current game, but does not quit
  the application (quit via the main menu or the dock menu)
- clicking the icon in the dock will (re)display the main menu
2013-03-21 23:59:01 +11:00
Tim Allen d9400084c2 Update to v092r02 release.
byuu says:

Changelog:
- merged AWJ's hires color blending improvements (most notably: fixes
  Marvelous' text)
- created sfc/base/ to store base unit (expansion port device) emulation
- synchronized the markup of Satellaview and Sufami Turbo cartridge
  slots in the board markup
- fixed "Initializing ..." typo in timing settings

If at all possible, I'd really like to have heavy testing of games that
use hires graphics to check for any regressions.
I trust AWJ's code, and all of the test ROMs I have thrown at it all
appear to work great. But better safe than sorry. Same deal for any core
changes, it's a lot better to catch it now than after v093 is released.
2013-01-23 19:28:35 +11:00
Tim Allen bbc33fe05f Update to higan v092r01, ananke v02r01 and purify v03r01 releases.
byuu says:

higan changelog:
- compiler is set to g++-4.7, subst(cc,++) rule is gone, C files compile
  with $(compiler) -x c
- make throws an error when you specify an invalid profile or compile on
  an unsupported platform (instead of hanging forever)
- added unverified.png to resources (causes too big of a speed hit to
  actually check for folder/unverified file ... so disabled for now)
- fixed default browser paths for Game Boy, Sufami Turbo and BS-X
  Satellaview (have to delete paths.cfg to see this)
- browser home button seeks to configpath()/higan/library.cfg
- settings->driver is now settings->advanced, and it adds game library
  path setting and profile information
- emulation cores now load manifest files internally, manifest.bml is
  not required for a game folder to be recognized by higan as such
- BS-X Satellaview and Sufami Turbo slot cartridge handling moved out of
  sfc/chip and into sfc/slot
- Video::StartFullScreen only sets fullscreen when a game is specified
  on the command-line

purify and ananke changelog:
- library output path shown in purify window
- added button to change library path
- squelch firmware warning windows to prevent multi-threading crash, but
  only via purify (they show up in higan still)
2013-01-21 23:27:15 +11:00
Tim Allen 032e924495 Update to v092 release.
In the release thread, byuu says:

    The first official release of higan has been posted. higan is the
    new name for bsnes, and it continues with the latter's version
    numbering.

    Note that as of now, bsnes still exists. It's a module distributed
    inside of higan. bsnes is now specific to my SNES emulator.

    Due to last minute changes to the emulator interface, and missing
    support in ananke, I wasn't able to include Cydrak's Nintendo DS
    emulator dasShiny in this build, but I hope to do so in the next
    release.

    http://code.google.com/p/higan/downloads/list

    For both new and experienced users, please read the higan user guide
    first:

    http://byuu.org/higan/user-guide

In the v091 WIP thread, byuu says:

    r15->r16:
    - BS-X MaskROM handling (partial ... need to split bsx/flash away
      from sfc/chip, restructure code - it requires tagging the base
      cart markup for now, but it needs to parse the slotted cart
      markup)
    - phoenixflags / phoenixlink += -m32
    - nall/sort stability
    - if(input.poll(scancode[activeScancode]) == false) return;
    - MSU1 / USART need to use interface->path(1)
    - MSU1 needs to use Markup::Document, not XML::Document
    - case-insensitive folder listings
    - remove nall/emulation/system.hpp files (move to ananke)
    - remove rom/ram id= checks with indexing
    X have cores ask for manifest.bml (skipped for v092's release, too
      big a change)
    - rename compatibility profile to balanced (so people don't assume
      it has better compatibility than accuracy)
2013-01-14 23:15:21 +11:00
Tim Allen d4751c5244 Update to v091r10 release.
byuu says:

This release adds HSU1 support, and fixes the reduce() memory mapping
function.
2012-12-26 17:46:57 +11:00
Tim Allen ab345ff20c Update to v091r09 release.
[r07 and r08 were not posted to the WIP thread. -Ed.]

byuu says:

I'd appreciate it if you guys wouldn't mind testing out the database
functionality.

Save this file as database.bml (remove the date) inside
~/.config/higan/Super Famicom.sfc/ or %APPDATA%/higan/Super Famicom.sfc/

    http://byuu.org/snes/database/database_2012-10-21.bml

Now load any of the 20 games in the database from the file dialog. They
need to be named *.sfc, have no copier header, and have firmware
appended (for Mario Kart only so far.)

If anyone actually does test it, please let me know how it goes for you
and what you think. Note that future versions of higan will have the
database.bml file included with the release.
2012-12-26 17:46:57 +11:00
Tim Allen ef746bbda4 Update to v091r05 release.
[No prior releases were posted to the WIP thread. -Ed.]

byuu says:

Super Famicom mapping system has been reworked as discussed with the
mask= changes. offset becomes base, mode is gone. Also added support for
comma-separated fields in the address fields, to reduce the number of
map lines needed.

    <?xml version="1.0" encoding="UTF-8"?>
    <cartridge region="NTSC">
      <superfx revision="2">
	<rom name="program.rom" size="0x200000"/>
	<ram name="save.rwm" size="0x8000"/>
	<map id="io" address="00-3f,80-bf:3000-32ff"/>
	<map id="rom" address="00-3f:8000-ffff" mask="0x8000"/>
	<map id="rom" address="40-5f:0000-ffff"/>
	<map id="ram" address="00-3f,80-bf:6000-7fff" size="0x2000"/>
	<map id="ram" address="70-71:0000-ffff"/>
      </superfx>
    </cartridge>

Or in BML:

    cartridge region=NTSC
      superfx revision=2
	rom name=program.rom size=0x200000
	ram name=save.rwm size=0x8000
	map id=io address=00-3f,80-bf:3000-32ff
	map id=rom address=00-3f:8000-ffff mask=0x8000
	map id=rom address=40-5f:0000-ffff
	map id=ram address=00-3f,80-bf:6000-7fff size=0x2000
	map id=ram address=70-71:0000-ffff

As a result of the changes, old mappings will no longer work. The above
XML example will run Super Mario World 2: Yoshi's Island. Otherwise,
you'll have to write your own.

All that's left now is to work some sort of database mapping system in,
so I can start dumping carts en masse.

The NES changes that FitzRoy asked for are mostly in as well.

Also, part of the reason I haven't released a WIP ... but fuck it, I'm
not going to wait forever to post a new WIP.

I've added a skeleton driver to emulate Campus Challenge '92 and
Powerfest '94. There's no actual emulation, except for the stuff I can
glean from looking at the pictures of the board. It has a DSP-1 (so
SR/DR registers), four ROMs that map in and out, RAM, etc.

I've also added preliminary mapping to upload high scores to a website,
but obviously I need the ROMs first.
2012-12-26 17:46:57 +11:00
Tim Allen 94b2538af5 Update to higan v091 release.
byuu says:

Basically just a project rename, with s/bsnes/higan and the new icon
from lowkee added in.

It won't compile on Windows because I forgot to update the resource.rc
file, and a path transform command isn't working on Windows.
It was really just meant as a starting point, so that v091 WIPs can flow
starting from .00 with the new name (it overshadows bsnes v091, so
publicly speaking this "shouldn't exist" and will probably be deleted
from Google Code when v092 is ready.)
2012-12-26 17:46:36 +11:00