First commit ~0,10

WAVPLAV/SB.CPP

@@ -0,0 +1,57 @@
+#include <dos.h>
+
+int SBDetect(void);
+void SBSendByte(unsigned char b);
+
+/*
+  Soporte de Sound Blaster
+*/
+
+unsigned  BPORT = 0x210,
+	  XPORT = 0x216,
+	  WPORT = 0x21C,
+	  RPORT = 0x21A,
+	  APORT = 0x21E;
+
+char      READY = 0xAA;
+
+int SBDetect(void)
+{
+  char Status,Ct;
+
+  Status = 0;
+  while (Status!=READY && BPORT<0x270)
+  {
+    outportb(XPORT,1);
+    outportb(XPORT,0);
+    Ct = 0;
+    while (Status!=READY && Ct<100)
+    {
+      Status = inportb(RPORT);
+      Ct++;
+    };
+    if (Status!=READY)
+    {
+      BPORT += 0x10;
+      XPORT += 0x10;
+      WPORT += 0x10;
+      RPORT += 0x10;
+      APORT += 0x10;
+    }
+  }
+  if (BPORT!=0x270)
+  {
+      while ((inport(WPORT) & 128) != 0);
+    outportb(WPORT,0xD1);
+    return(0);
+  }
+  else return(-1);
+}
+
+void SBSendByte(unsigned char b)
+{
+    while ((inport(WPORT) & 128) != 0);
+  outportb(WPORT,0x10);
+    while ((inport(WPORT) & 128) != 0);
+  outportb(WPORT,b);
+}