WIP

frontends/moa-minifb/src/bin/moa-synth.rs

@@ -77,7 +77,7 @@ fn initialize_ym(ym_sound: TransmutableBox) -> Result<(), Error> {
     set_register(device, 0, 0x30, 0x71)?;
     set_register(device, 0, 0x34, 0x0D)?;
     set_register(device, 0, 0x38, 0x33)?;
-    set_register(device, 0, 0x3C, 0x01)?;
+    set_register(device, 0, 0x3C, 0x00)?;
 
     set_register(device, 0, 0xA4, 0x22)?;
     set_register(device, 0, 0xA0, 0x69)?;

src/cpus/m68k/tests.rs

@@ -167,11 +167,11 @@ mod decode_tests {
         let mut tests = 0;
         let mut errors = 0;
 
-        //use super::super::testcases::{TimingCase, TIMING_TESTS};
+        use super::super::testcases::{TimingCase, TIMING_TESTS};
         for case in TIMING_TESTS {
             tests += 1;
             let assembly_text = format!("{}", case.ins);
-            print!("Testing assembling of {:?} ", assembly_text);
+            print!("Testing assembling of {:?} from {:?}", assembly_text, case.ins);
 
             let mut assembler = M68kAssembler::new(M68kType::MC68000);
             match assembler.assemble_words(&assembly_text) {

src/error.rs

@@ -48,7 +48,7 @@ pub enum LogLevel {
     Debug,
 }
 
-static mut LOG_LEVEL: LogLevel = LogLevel::Warning;
+static mut LOG_LEVEL: LogLevel = LogLevel::Info;
 
 pub fn log_level() -> LogLevel {
     unsafe { LOG_LEVEL }

src/host/audio.rs

@@ -19,7 +19,9 @@ impl SineWave {
     }
 
     pub fn set_frequency(&mut self, frequency: f32) {
+        let ratio = self.frequency / frequency;
         self.frequency = frequency;
+        self.position = (self.position as f32 * ratio) as usize;
     }
 
     pub fn reset(&mut self) {
@@ -54,7 +56,9 @@ impl SquareWave {
     }
 
     pub fn set_frequency(&mut self, frequency: f32) {
+        let ratio = self.frequency / frequency;
         self.frequency = frequency;
+        self.position = (self.position as f32 * ratio) as usize;
     }
 
     pub fn reset(&mut self) {
@@ -106,7 +110,9 @@ impl SkewedSquareWave {
     }
 
     pub fn set_frequency(&mut self, frequency: f32) {
+        let ratio = self.frequency / frequency;
         self.frequency = frequency;
+        self.position = (self.position as f32 * ratio) as usize;
     }
 
     pub fn reset(&mut self) {

src/machines/genesis.rs

@@ -86,7 +86,8 @@ pub fn build_genesis<H: Host>(host: &mut H, options: SegaGenesisOptions) -> Resu
     system.add_addressable_device(0x00a00000, coproc_ram)?;
     system.add_addressable_device(0x00a04000, coproc_ym_sound)?;
     system.add_addressable_device(0x00a06000, coproc_register)?;
-    system.add_addressable_device(0x00c00010, coproc_sn_sound)?;
+    //system.add_addressable_device(0x00c00010, coproc_sn_sound)?;
+    system.add_device("sn_sound", coproc_sn_sound.clone())?;
     system.add_device("coproc", wrap_transmutable(coproc))?;
 
 
@@ -97,7 +98,7 @@ pub fn build_genesis<H: Host>(host: &mut H, options: SegaGenesisOptions) -> Resu
     let coproc = genesis::coprocessor::CoprocessorCoordinator::new(reset, bus_request);
     system.add_addressable_device(0x00a11000, wrap_transmutable(coproc)).unwrap();
 
-    let vdp = genesis::ym7101::Ym7101::new(host, interrupt);
+    let vdp = genesis::ym7101::Ym7101::new(host, interrupt, coproc_sn_sound);
     system.break_signal = Some(vdp.frame_complete.clone());
     system.add_peripheral("vdp", 0x00c00000, wrap_transmutable(vdp)).unwrap();
 

src/peripherals/genesis/ym7101.rs

@@ -5,7 +5,7 @@ use crate::error::Error;
 use crate::system::System;
 use crate::memory::dump_slice;
 use crate::signals::{EdgeSignal};
-use crate::devices::{Clock, ClockElapsed, Address, Addressable, Steppable, Inspectable, Transmutable, read_beu16};
+use crate::devices::{Clock, ClockElapsed, Address, Addressable, Steppable, Inspectable, Transmutable, TransmutableBox, read_beu16};
 use crate::host::traits::{Host, BlitableSurface, HostData};
 use crate::host::gfx::{Frame, FrameSwapper};
 
@@ -678,13 +678,14 @@ impl Steppable for Ym7101 {
 pub struct Ym7101 {
     swapper: FrameSwapper,
     state: Ym7101State,
+    sn_sound: TransmutableBox,
 
     pub external_interrupt: HostData<bool>,
     pub frame_complete: EdgeSignal,
 }
 
 impl Ym7101 {
-    pub fn new<H: Host>(host: &mut H, external_interrupt: HostData<bool>) -> Ym7101 {
+    pub fn new<H: Host>(host: &mut H, external_interrupt: HostData<bool>, sn_sound: TransmutableBox) -> Ym7101 {
         let swapper = FrameSwapper::new(320, 224);
 
         host.add_window(FrameSwapper::to_boxed(swapper.clone())).unwrap();
@@ -692,6 +693,7 @@ impl Ym7101 {
         Ym7101 {
             swapper,
             state: Ym7101State::new(),
+            sn_sound,
             external_interrupt,
             frame_complete: EdgeSignal::new(),
         }
@@ -834,6 +836,10 @@ impl Addressable for Ym7101 {
                 }
             },
 
+            0x11 | 0x12 => {
+                self.sn_sound.borrow_mut().as_addressable().unwrap().write(0, data)?;
+            },
+
             _ => { warning!("{}: !!! unhandled write to {:x} with {:?}", DEV_NAME, addr, data); },
         }
         Ok(())

src/peripherals/sn76489.rs

@@ -41,7 +41,7 @@ impl ToneGenerator {
     }
 
     pub fn get_sample(&mut self) -> f32 {
-        self.wave.next().unwrap()
+        self.wave.next().unwrap() / self.attenuation
     }
 }
 

src/timers.rs

@@ -23,20 +23,20 @@ impl AverageTimer {
     }
 
     pub fn start(&mut self) {
-        self.start = Some(Instant::now())
+        //self.start = Some(Instant::now())
     }
 
     pub fn end(&mut self) {
-        let time = self.start.unwrap().elapsed().as_nanos() as u32;
+        //let time = self.start.unwrap().elapsed().as_nanos() as u32;
 
-        self.events += 1;
-        if time > self.high {
-            self.high = time;
-        }
-        if time < self.low {
-            self.low = time;
-        }
-        self.average = (self.average + time as f32) / 2.0;
+        //self.events += 1;
+        //if time > self.high {
+        //    self.high = time;
+        //}
+        //if time < self.low {
+        //    self.low = time;
+        //}
+        //self.average = (self.average + time as f32) / 2.0;
     }
 }