Minor fixes

src/host/gfx.rs

@@ -108,6 +108,11 @@ impl FrameSwapper {
     pub fn swap(&mut self) {
         std::mem::swap(&mut self.current.lock().unwrap().bitmap, &mut self.previous.lock().unwrap().bitmap);
     }
+
+    pub fn set_size(&mut self, width: u32, height: u32) {
+        self.previous.lock().unwrap().set_size(width, height);
+        self.current.lock().unwrap().set_size(width, height);
+    }
 }
 
 impl WindowUpdater for FrameSwapper {

src/peripherals/genesis/coprocessor.rs

@@ -46,18 +46,10 @@ impl Addressable for CoprocessorCoordinator {
         match addr {
             0x000 => { /* ROM vs DRAM mode */ },
             0x100 => {
-                if data[0] != 0 {
-                    self.bus_request.set(true);
-                } else {
-                    self.bus_request.set(false);
-                }
+                self.bus_request.set(data[0] != 0);
             },
             0x200 => {
-                if data[0] == 0 {
-                    self.reset.set(true);
-                } else {
-                    self.reset.set(false);
-                }
+                self.reset.set(data[0] == 0);
             },
             _ => { warning!("{}: !!! unhandled write {:0x} to {:0x}", DEV_NAME, data[0], addr); },
         }

src/peripherals/genesis/ym7101.rs

@@ -150,10 +150,10 @@ impl Ym7101Memory {
         }
     }
 
-    pub fn setup_transfer(&mut self, upper: u16, lower: u16) {
+    pub fn setup_transfer(&mut self, first: u16, second: u16) {
         self.ctrl_port_buffer = None;
-        self.transfer_type = ((((upper & 0xC000) >> 14) | ((lower & 0x00F0) >> 2))) as u8;
-        self.transfer_dest_addr = ((upper & 0x3FFF) | ((lower & 0x0003) << 14)) as u32;
+        self.transfer_type = ((((first & 0xC000) >> 14) | ((second & 0x00F0) >> 2))) as u8;
+        self.transfer_dest_addr = ((first & 0x3FFF) | ((second & 0x0003) << 14)) as u32;
         self.transfer_target = match self.transfer_type & 0x0E {
             0 => Memory::Vram,
             4 => Memory::Vsram,