1 files changed, 47 insertions, 0 deletions
diff --git a/fm_banks/op3_files/2x2patch/bytecmp.c b/fm_banks/op3_files/2x2patch/bytecmp.c
new file mode 100644
index 0000000..eb24e21
--- /dev/null
+++ b/fm_banks/op3_files/2x2patch/bytecmp.c
@@ -0,0 +1,47 @@
+#include <stdio.h>
+
+int main()
+{
+    FILE* f1 = fopen("../fat4.op3", "rb");
+    FILE* f2 = fopen("../fat4_probe.op3", "rb");
+
+    unsigned char byte1=0, byte2=0;
+    int count=0;
+    int insCount=0;
+    int dataPos = 32+(2*4);
+    int valid1 = 1;
+    int valid2 = 1;
+    int drumMode = 0;
+    while( valid1 && valid2 )
+    {
+        valid1 = (fread(&byte1, 1, 1, f1)!=0);
+        valid2 = (fread(&byte2, 1, 1, f2)!=0);
+
+        if(!valid1 && !valid2)
+            break;
+        if(count==32)
+        {
+            printf("Header\n");
+        }
+        if(count==32+(2*4))
+        {
+            printf("Header END\n");
+        }
+        if(count>=dataPos)
+        {
+            if((count-dataPos)%24==0)
+            {
+                if(drumMode)
+                    printf("DRUM!!! %d\n", (insCount++)-128);
+                else
+                    printf("INSTRUMENT!!! %d\n", insCount++);
+                if(insCount==128)
+                    drumMode = 1;
+            }
+        }
+        printf("%03X: {0x%02x == 0x%02x}%s\n", count, byte1, byte2, (byte1==byte2)?"":" <- NOT SAME!!!");
+        count++;
+    }
+
+
+}