Fix 2013/cable3 for clang in linux

2013/cable3/Makefile

@@ -44,7 +44,8 @@ CSILENCE= -Wno-bitwise-op-parentheses -Wno-bool-operation \
 	-Wno-incompatible-pointer-types -Wno-logical-not-parentheses \
 	-Wno-logical-op-parentheses -Wno-parentheses -Wno-shift-op-parentheses \
 	-Wno-sign-compare -Wno-unsequenced -Wno-unused-parameter \
-	-Wno-deprecated-non-prototype -Wno-return-type -Wno-pointer-type-mismatch
+	-Wno-deprecated-non-prototype -Wno-return-type -Wno-pointer-type-mismatch \
+	-Wno-int-conversion
 
 # Common C compiler warning flags
 #

thanks-for-help.md

@@ -3628,6 +3628,8 @@ the source code defining `KB` to what the author suggested,
 `(kb=H(8),kbhit())&&(r[1190]=getch(),H(7))`. It need hardly be mentioned that
 this will not link in Unix systems (including macOS).
 
+Clang required a `-Wno-` option as well.
+
 Finally Cody provided the [bios.asm](/2013/cable3/bios.asm) that the author
 referred to, found at the [GitHub repo for the
 entry](https://github.com/adriancable/8086tiny/tree/master), and the 'ready-made