From 084056f729cb4408cbeda954a5aec8ef4f01a0df Mon Sep 17 00:00:00 2001
From: Clifford Wolf <clifford@clifford.at>
Date: Thu, 2 Jul 2015 10:46:21 +0200
Subject: [PATCH] Unsigned arguments for print_dec()

Patch by Larry Doolittle
---
 firmware/firmware.h | 2 +-
 firmware/irq.c      | 6 +++---
 firmware/print.c    | 2 +-
 firmware/stats.c    | 4 ++--
 4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/firmware/firmware.h b/firmware/firmware.h
index 3faf147..ca797e9 100644
--- a/firmware/firmware.h
+++ b/firmware/firmware.h
@@ -17,7 +17,7 @@ uint32_t *irq(uint32_t *regs, uint32_t irqs);
 // print.c
 void print_chr(char ch);
 void print_str(const char *p);
-void print_dec(int val);
+void print_dec(unsigned int val);
 void print_hex(unsigned int val);
 
 // sieve.c
diff --git a/firmware/irq.c b/firmware/irq.c
index 997e439..af80764 100644
--- a/firmware/irq.c
+++ b/firmware/irq.c
@@ -9,9 +9,9 @@
 
 uint32_t *irq(uint32_t *regs, uint32_t irqs)
 {
-	static int ext_irq_4_count = 0;
-	static int ext_irq_5_count = 0;
-	static int timer_irq_count = 0;
+	static unsigned int ext_irq_4_count = 0;
+	static unsigned int ext_irq_5_count = 0;
+	static unsigned int timer_irq_count = 0;
 
 	if ((irqs & (1<<4)) != 0) {
 		ext_irq_4_count++;
diff --git a/firmware/print.c b/firmware/print.c
index 2aef715..b12f5a0 100644
--- a/firmware/print.c
+++ b/firmware/print.c
@@ -20,7 +20,7 @@ void print_str(const char *p)
 		*((volatile uint32_t*)OUTPORT) = *(p++);
 }
 
-void print_dec(int val)
+void print_dec(unsigned int val)
 {
 	char buffer[10];
 	char *p = buffer;
diff --git a/firmware/stats.c b/firmware/stats.c
index 7c4434a..bb38de5 100644
--- a/firmware/stats.c
+++ b/firmware/stats.c
@@ -7,7 +7,7 @@
 
 #include "firmware.h"
 
-static void stats_print_dec(int val, int digits, bool zero_pad)
+static void stats_print_dec(unsigned int val, int digits, bool zero_pad)
 {
 	char buffer[32];
 	char *p = buffer;
@@ -27,7 +27,7 @@ static void stats_print_dec(int val, int digits, bool zero_pad)
 
 void stats()
 {
-	int num_cycles, num_instr;
+	unsigned int num_cycles, num_instr;
 	asm("rdcycle %0; rdinstret %1;" : "=r"(num_cycles), "=r"(num_instr));
 	print_str("Cycle counter ........");
 	stats_print_dec(num_cycles, 8, false);