higan_v093r11_link1.patch

diff -x higan -x '*.so' -x '*~' -x '*.o' -uNr higan_v093r11_sockpair/src/gb/cpu/mmio.cpp higan_v093r11_link1/src/gb/cpu/mmio.cpp
--- higan_v093r11_sockpair/src/gb/cpu/mmio.cpp	2013-12-24 06:22:02.000000000 +0000
+++ higan_v093r11_link1/src/gb/cpu/mmio.cpp	2013-12-25 04:58:08.783658144 +0000
@@ -53,12 +53,12 @@
     
     if(interface->tracer.open()) {
       char buffer[1024];
-      sprintf(buffer, "SB R 0x%.2x\n", 0xff);
+      sprintf(buffer, "SB R 0x%.2x\n", status.serial_data);
       interface->tracer.print(buffer);
       interface->tracer.flush();
     }
     
-    return 0xff;
+    return status.serial_data;
   }
 
   if(addr == 0xff02) {  //SC
diff -x higan -x '*.so' -x '*~' -x '*.o' -uNr higan_v093r11_sockpair/src/gb/cpu/timing.cpp higan_v093r11_link1/src/gb/cpu/timing.cpp
--- higan_v093r11_sockpair/src/gb/cpu/timing.cpp	2013-12-24 08:34:43.862134958 +0000
+++ higan_v093r11_link1/src/gb/cpu/timing.cpp	2013-12-25 05:05:13.383674277 +0000
@@ -69,11 +69,67 @@
 
 void CPU::timer_8192hz() {
   if(status.serial_transfer && status.serial_clock) {
+    // internal clock
+    
+    int highest_bit = 0x80 & status.serial_data;
+    
+    char bit[2];
+    if(highest_bit) bit[0] = '1';
+    else bit[0] = '0';
+    bit[1] = 0;
+    
+    write(sockSIO, bit, 1);
+    printf("socket %d w i: %s\n", sockSIO, bit);
+    
+    status.serial_data = status.serial_data << 1;
+    
+    char buf[2];
+    buf[0] = '?';
+    buf[1] = 0;
+    if(1 == recv(sockSIO, buf, 1, MSG_WAITALL)) {
+      printf("socket %d r i: %s\n", sockSIO, buf);
+      if(buf[0] == '1') status.serial_data |= 1;
+    }
+    
     if(--status.serial_bits == 0) {
+      printf("i ! 0x%.2x\n", status.serial_data);
+      
       status.serial_transfer = 0;
       interrupt_raise(Interrupt::Serial);
     }
   }
+  else if(status.serial_transfer && !status.serial_clock) {
+    // external clock/recieve wait status
+    
+    // wait for SCK pulse
+    
+    char buf[2];
+    buf[0] = '?';
+    buf[1] = 0;
+    if(1 == recv(sockSIO, buf, 1, MSG_DONTWAIT)) {
+      printf("socket %d r e: %s\n", sockSIO, buf);
+      
+      int highest_bit = 0x80 & status.serial_data;
+      
+      char bit[2];
+      if(highest_bit) bit[0] = '1';
+      else bit[0] = '0';
+      bit[1] = 0;
+      
+      write(sockSIO, bit, 1);
+      printf("socket %d w e: %s\n", sockSIO, bit);
+      
+      status.serial_data <<= 1;
+      if(buf[0] == '1') status.serial_data |= 1;
+      
+      if(--status.serial_bits == 0) {
+	printf("e ! 0x%.2x\n", status.serial_data);
+	
+	status.serial_transfer = 0;
+	interrupt_raise(Interrupt::Serial);
+      }
+    }
+  }
 }
 
 void CPU::timer_4096hz() {