From 6b164d70a5927e8955b1e0869c4ad32d63410d00 Mon Sep 17 00:00:00 2001
From: Jonathan Campbell <jonathan@castus.tv>
Date: Sat, 28 May 2016 04:46:55 -0700
Subject: [PATCH] add printf-like _DEBUGF() function for debugging, too

---
 src/16.c         |  1 +
 src/lib/16_dbg.c | 15 +++++++++++++++
 src/lib/16_dbg.h |  4 ++++
 src/scroll.c     |  1 +
 src/test.c       |  1 +
 5 files changed, 22 insertions(+)

diff --git a/src/16.c b/src/16.c
index 380c3359..e7cee886 100755
--- a/src/16.c
+++ b/src/16.c
@@ -59,6 +59,7 @@ main(int argc, char *argv[])
 #endif
 	}
 	_DEBUG("Serial debug output started\n"); // NTS: All serial output must end messages with newline, or DOSBox-X will not emit text to log
+	_DEBUGF("Serial debug output printf test %u %u %u\n",1U,2U,3U);
 
 	//screen = modexDefaultPage();
 	engi_stat = ENGI_RUN;
diff --git a/src/lib/16_dbg.c b/src/lib/16_dbg.c
index be2c1d26..2215c420 100644
--- a/src/lib/16_dbg.c
+++ b/src/lib/16_dbg.c
@@ -3,6 +3,10 @@
 
 // TODO: Could we also provide a build mode to emit debug to the "Bochs E9 hack?"
 #ifdef DEBUGSERIAL
+# include <stdarg.h>
+# include <stdlib.h>
+# include <stdio.h>
+
 unsigned char _DEBUG_INITed = 0;
 struct info_8250 *_DEBUG_uart = NULL;
 
@@ -57,5 +61,16 @@ void _DEBUG(const char *msg) {
 		}
 	}
 }
+
+static char _DEBUGF_TMP[256];
+
+void _DEBUGF(const char *fmt,...) {
+	va_list va;
+
+	va_start(va,fmt);
+	vsnprintf(_DEBUGF_TMP,sizeof(_DEBUGF_TMP),fmt,va);
+	_DEBUG(_DEBUGF_TMP);
+	va_end(va);
+}
 #endif
 
diff --git a/src/lib/16_dbg.h b/src/lib/16_dbg.h
index e408ac0c..9aaf9644 100644
--- a/src/lib/16_dbg.h
+++ b/src/lib/16_dbg.h
@@ -5,9 +5,13 @@
 # ifdef DEBUGSERIAL
 #  include <hw/8250/8250.h>
 
+void _DEBUGF(const char *fmt,...);
 void _DEBUG(const char *msg);
 int _DEBUG_INIT();
 # else
+static inline void _DEBUGF(const char *fmt,...) {
+	// NOTHING
+}
 static inline void _DEBUG(const char *msg) {
 	// NOTHING
 }
diff --git a/src/scroll.c b/src/scroll.c
index b108a20d..8f8c27f5 100755
--- a/src/scroll.c
+++ b/src/scroll.c
@@ -91,6 +91,7 @@ void main(int argc, char *argv[])
 #endif
 	}
 	_DEBUG("Serial debug output started\n"); // NTS: All serial output must end messages with newline, or DOSBox-X will not emit text to log
+	_DEBUGF("Serial debug output printf test %u %u %u\n",1U,2U,3U);
 
 	pan.pn=1;
 	//player[0].data = &pp;
diff --git a/src/test.c b/src/test.c
index 2c698a63..bb3792ae 100755
--- a/src/test.c
+++ b/src/test.c
@@ -70,6 +70,7 @@ void main(int argc, char *argv[])
 #endif
 	}
 	_DEBUG("Serial debug output started\n"); // NTS: All serial output must end messages with newline, or DOSBox-X will not emit text to log
+	_DEBUGF("Serial debug output printf test %u %u %u\n",1U,2U,3U);
 
 	/* load our palette */
 	modexLoadPalFile("data/default.pal", &pal2);
-- 
2.39.5