diff --git a/ion/Makefile b/ion/Makefile
index 472d4d4f4..811326c28 100644
--- a/ion/Makefile
+++ b/ion/Makefile
@@ -4,6 +4,7 @@ include ion/src/$(PLATFORM)/Makefile
 objs += $(addprefix ion/src/shared/, \
   c.o \
   events.o \
+  log_integer.o \
 )
 
 tests += $(addprefix ion/test/,\
diff --git a/ion/include/ion/c.h b/ion/include/ion/c.h
index ce2ce1b98..d28430ec6 100644
--- a/ion/include/ion/c.h
+++ b/ion/include/ion/c.h
@@ -1,11 +1,14 @@
 #ifndef ION_C_H
 #define ION_C_H
 
+#include <stdint.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-void ion_log_print(const char * message);
+void ion_log_print_string(const char * message);
+void ion_log_print_integer(uint32_t integer);
 
 #ifdef __cplusplus
 }
diff --git a/ion/include/ion/log.h b/ion/include/ion/log.h
index 0cd94ad5a..ee5c4de1c 100644
--- a/ion/include/ion/log.h
+++ b/ion/include/ion/log.h
@@ -1,10 +1,13 @@
 #ifndef ION_LOG_H
 #define ION_LOG_H
 
+#include <stdint.h>
+
 namespace Ion {
 namespace Log {
 
 void print(const char * message);
+void print(uint32_t number);
 
 }
 }
diff --git a/ion/src/blackbox/Makefile b/ion/src/blackbox/Makefile
index 2a2f48899..0e2ba8f2f 100644
--- a/ion/src/blackbox/Makefile
+++ b/ion/src/blackbox/Makefile
@@ -4,6 +4,7 @@ objs += $(addprefix ion/src/shared/, \
   events.o \
   events_stdin.o \
   log_printf.o \
+  log_integer.o \
   power.o \
 )
 
diff --git a/ion/src/shared/c.cpp b/ion/src/shared/c.cpp
index 8571b890a..12feeab32 100644
--- a/ion/src/shared/c.cpp
+++ b/ion/src/shared/c.cpp
@@ -1,6 +1,10 @@
 #include <ion.h>
 #include <ion/c.h>
 
-void ion_log_print(const char * message) {
+void ion_log_print_integer(uint32_t i) {
+  Ion::Log::print(i);
+}
+
+void ion_log_print_string(const char * message) {
   Ion::Log::print(message);
 }
diff --git a/ion/src/shared/log_integer.cpp b/ion/src/shared/log_integer.cpp
new file mode 100644
index 000000000..a54278146
--- /dev/null
+++ b/ion/src/shared/log_integer.cpp
@@ -0,0 +1,13 @@
+#include <ion/log.h>
+#include <stdio.h>
+
+void Ion::Log::print(uint32_t i) {
+  char buffer[9];
+  for (int j=0; j<8; j++) {
+    uint8_t v = (i & 0xF);
+    buffer[8-1-j] = (v>9) ? 'A'+v-10 : '0'+v;
+    i = i >> 4;
+  }
+  buffer[8] = 0;
+  print(buffer);
+}
diff --git a/liba/src/malloc.c b/liba/src/malloc.c
index e31ac3f86..cb26a78df 100644
--- a/liba/src/malloc.c
+++ b/liba/src/malloc.c
@@ -3,17 +3,7 @@
 #include <private/memconfig.h>
 
 #if LIBA_LOG_DYNAMIC_MEMORY
-#include <stdint.h>
 #include <ion/c.h>
-
-void write_uint32_in_buffer(uint32_t n, char * buffer) {
-  for (int i=0; i<2*sizeof(uint32_t); i++) {
-    unsigned char v = (n & 0xF);
-    char c = (v>9) ? 'A'+v-10 : '0'+v;
-    buffer[2*sizeof(uint32_t)-1-i] = c;
-    n = n >> 4;
-  }
-}
 #endif
 
 extern char _heap_start;
@@ -41,9 +31,9 @@ static void configure_heap() {
 
 void free(void *ptr) {
 #if LIBA_LOG_DYNAMIC_MEMORY
-  char message[5+2*sizeof(uint32_t)+1] = {'F', 'R', 'E', 'E', '-'};
-  write_uint32_in_buffer((uint32_t)ptr, message+5);
-  ion_log_print(message);
+  ion_log_print_string("FREE-");
+  ion_log_print_integer((uint32_t)ptr);
+  ion_log_print_string("\n");
 #endif
   if (ptr != NULL) {
     memsys5FreeUnsafe(ptr);
@@ -59,12 +49,11 @@ void * malloc(size_t size) {
     p = memsys5MallocUnsafe(memsys5Roundup(size));
   }
 #if LIBA_LOG_DYNAMIC_MEMORY
-  char message[7+2*sizeof(uint32_t)+1+2*sizeof(uint32_t)+1] = {'M','A','L','L','O','C','-'};
-  write_uint32_in_buffer((uint32_t)p, message+7);
-  message[7+2*sizeof(uint32_t)] = '-';
-  write_uint32_in_buffer(size, message+7+2*sizeof(uint32_t)+1);
-  message[7+2*sizeof(uint32_t)+1+2*sizeof(uint32_t)] = 0;
-  ion_log_print(message);
+  ion_log_print_string("MALLOC-");
+  ion_log_print_integer((uint32_t)p);
+  ion_log_print_string("-");
+  ion_log_print_integer((uint32_t)size);
+  ion_log_print_string("\n");
 #endif
   return p;
 }