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feat: implement resetting

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This commit is contained in:
Rekai Nyangadzayi Musuka
2023-03-10 02:27:31 -06:00
parent bd872ee1c0
commit f8477714ae
7 changed files with 51 additions and 9 deletions
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18
src/core/apu.zig
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@@ -278,16 +278,20 @@ pub const Apu = struct {
.is_buffer_full = false,
};
sched.push(.SampleAudio, apu.interval());
sched.push(.{ .ApuChannel = 0 }, @import("apu/signal/Square.zig").interval);
sched.push(.{ .ApuChannel = 1 }, @import("apu/signal/Square.zig").interval);
sched.push(.{ .ApuChannel = 2 }, @import("apu/signal/Wave.zig").interval);
sched.push(.{ .ApuChannel = 3 }, @import("apu/signal/Lfsr.zig").interval);
sched.push(.FrameSequencer, FrameSequencer.interval);
Self.initEvents(apu.sched, apu.interval());
return apu;
}
fn initEvents(scheduler: *Scheduler, apu_interval: u64) void {
scheduler.push(.SampleAudio, apu_interval);
scheduler.push(.{ .ApuChannel = 0 }, @import("apu/signal/Square.zig").interval);
scheduler.push(.{ .ApuChannel = 1 }, @import("apu/signal/Square.zig").interval);
scheduler.push(.{ .ApuChannel = 2 }, @import("apu/signal/Wave.zig").interval);
scheduler.push(.{ .ApuChannel = 3 }, @import("apu/signal/Lfsr.zig").interval);
scheduler.push(.FrameSequencer, FrameSequencer.interval);
}
/// Used when resetting the emulator
pub fn reset(self: *Self) void {
// FIXME: These reset functions are meant to emulate obscure APU behaviour. Write proper emu reset fns
@@ -306,6 +310,8 @@ pub const Apu = struct {
self.sampling_cycle = 0;
self.fs.reset();
Self.initEvents(self.sched, self.interval());
}
/// Emulates the reset behaviour of the APU