diff --git a/src/serial.inc b/src/serial.inc
index 6db27ed..5fc396a 100644
--- a/src/serial.inc
+++ b/src/serial.inc
@@ -7,3 +7,12 @@
 INITUART IMPORT
 POUTCHAR IMPORT
 POUTZSTR IMPORT
+PINCHAR  IMPORT
+
+; POUTZSTR wrapper macro
+PZSTR MACRO
+  pshs x
+  ldx #\1
+  jsr POUTZSTR
+  puls x
+  ENDM
diff --git a/src/serial.s b/src/serial.s
index 5da47c9..e60f974 100644
--- a/src/serial.s
+++ b/src/serial.s
@@ -15,6 +15,7 @@
   EXPORT INITUART
   EXPORT POUTCHAR
   EXPORT POUTZSTR
+  EXPORT PINCHAR
 
 ; Initializes the UART with LCR settings and a BAUD rate from DIVISORS.
 ; ACCA: Index of the divsor to use in DIVISORS