diff --git a/IDE/XCODE/README.md b/IDE/XCODE/README.md
index b2bfae757..284e6069a 100644
--- a/IDE/XCODE/README.md
+++ b/IDE/XCODE/README.md
@@ -54,6 +54,15 @@ device build. Both are debug builds.
 
 You can make an archive for a device, as well. That is a release build.
 
+## Known issues:
+
+When building for older i386 architectures and using tfm.c there are specific
+CFLAGS required to expose the necessary registers for inline assembly in tfm.c.
+An example script has been provided "build-for-i386.sh" that targets the watchos
+by default. If using SDK iphonesimulator10.1 or older you can change the SDK
+variable in that script however newer versions of the SDK no longer support
+i386 for the iphones.
+
 # Installing libwolfssl.a
 
 Simply drag the file libwolfssl_XXX_.a and the directory `include` and drop it into
diff --git a/IDE/XCODE/build-for-i386.sh b/IDE/XCODE/build-for-i386.sh
new file mode 100755
index 000000000..88507d2fe
--- /dev/null
+++ b/IDE/XCODE/build-for-i386.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+WORKSPACE=$(eval "pwd")
+PROJ=wolfssl.xcodeproj
+CONFIG=Release
+SCHEME=wolfssl_ios
+ARCH=i386
+SDK=watchsimulator5.1
+CONF_BUILD_DIR=${WORKSPACE}/simulator
+
+xcodebuild clean build -project ${PROJ} -configuration ${CONFIG} \
+           -scheme ${SCHEME} -arch ${ARCH} -sdk ${SDK} \
+           BITCODE_GENERATION_MODE=bitcode \
+           OTHER_CFLAGS="-fembed-bitcode -O3 -fomit-frame-pointer" \
+           CONFIGURATION_BUILD_DIR=${CONF_BUILD_DIR}  \
+           -quiet