Add note to mention we didn't have calling convention big-endian

kito-cheng · kito-cheng · commit 91d27ac0632c · 2022-05-06T16:29:37.000+08:00
Fix #265.
diff --git a/riscv-cc.adoc b/riscv-cc.adoc
@@ -80,6 +80,9 @@ Any procedure that does explicitly write `vstart` to a nonzero value must zero
 
 == Procedure Calling Convention
 
+NOTE: Calling convention for big-endian is *NOT* included in this specification
+yet, we intend to define that in future version of this specification.
+
 === Integer Calling Convention
 
 The base integer calling convention provides eight argument registers,
