fix issue #8

Author: nerdralph

src/ArduinoShrink.h

@@ -1,17 +1,5 @@
 // (c) Ralph Doncaster 2020
 // ArduinoShrink
 
-extern "C" void delay_impl();
-// lightweight custom function call abi
-__attribute((always_inline))
-inline void delay(uint32_t msec)
-{
-    register __uint24 ms asm ("r24") = msec;
-    asm volatile (
-        "%~call %x1\n" 
-        : "+r"(ms)
-        : "i"(delay_impl)
-        : "r20", "r21"           // clobbers
-    );
-}
-
+// Nothing here since ArduinoShrink replaces functions already defined
+// in Arduino.h

src/wiring.c

@@ -5,6 +5,20 @@
 #include <util/delay.h>
 #include "as_common.h"
 
+extern void delay_impl();
+
+// lightweight asm function call interface
+void delay(uint32_t msec)
+{
+    register __uint24 ms asm ("r24") = msec;
+    asm volatile (
+        "%~call %x1\n" 
+        : "+r"(ms)
+        : "i"(delay_impl)
+        : "r20", "r21"           // clobbers
+    );
+}
+
 // delays a specified number of microseconds - modified from picoCore
 // works for clock frequencies of 4Mhz and up
 void delayMicroseconds(uint16_t us)