Implemented negative numbers and more importantly glendasay

tests/fvm.inc

@@ -284,24 +284,48 @@ macro MulR64 dst, src
   db src
 end macro
 
+macro IMulR64 dst, src
+  db 0x71
+  db dst
+  db src
+end macro
+
 macro DivR64 dst, src
   db 0x72
   db dst
   db src
 end macro
 
+macro IDivR64 dst, src
+  db 0x73
+  db dst
+  db src
+end macro
+
 macro ModR64 dst, src
   db 0x74
   db dst
   db src
 end macro
 
+macro IModR64 dst, src
+  db 0x75
+  db dst
+  db src
+end macro
+
 macro Cmp64 A, B
   db 0x7D
   db A
   db B
 end macro
 
+macro ICmp64 A, B
+  db 0x7F
+  db A
+  db B
+end macro
+
 macro Not64 reg
   db 0x41
   db reg