diff --git a/util/ADLO/Makefile b/util/ADLO/Makefile
index f9b37c68f9..cc6c4244e6 100644
--- a/util/ADLO/Makefile
+++ b/util/ADLO/Makefile
@@ -12,6 +12,7 @@ PIRQ_W=
 PIRQ_M=pirq/pirq-MS7308E.bin
 PIRQ_P=pirq/pirq-P6STMT.bin
 PIRQ_T=pirq/pirq-ThinkPad.T23.bin
+PIRQ_EPIA=pirq/pirq-EPIA.bin
 
 BOCHS_R=bochs
 BOCHS_B=bochs/bios
@@ -25,6 +26,7 @@ BIOS_X=${BOCHS_X}/rombios.bin
 VIDEO64W=video/video.bios-WINFAST64kb.bin
 VIDEO64M=
 VIDEO64P=video/video.bios-P6STMT-64kb.bin
+VIDEO64EPIA=video/video.bios-EPIA-64kb.bin
 
 PAYLOAD=payload
 
@@ -36,6 +38,8 @@ all: clean build #install
 
 #-------------------------------------------------
 
+epia: loader.o bios
+	cat ${ELF129} ${LOADER} ${PIRQ_EPIA} ${BIOS_B} ${VIDEO64EPIA} > ${PAYLOAD}
 build: loader.o bios
 	cat ${ELF129} ${LOADER} ${PIRQ_M} ${BIOS_B} ${VIDEO64P} > ${PAYLOAD}
 
diff --git a/util/ADLO/bochs/bios/rombios.c b/util/ADLO/bochs/bios/rombios.c
index a9f7cac7e9..9ce6b09052 100644
--- a/util/ADLO/bochs/bios/rombios.c
+++ b/util/ADLO/bochs/bios/rombios.c
@@ -131,6 +131,7 @@
 
 #define DEBUG_ROMBIOS      1
 
+#define DEBUG_SERIAL       1
 #define DEBUG_ATA          1
 #define DEBUG_INT13_HD     0
 #define DEBUG_INT13_CD     0
@@ -1425,17 +1426,75 @@ wrch(c)
   ASM_END
 }
  
+
+#if DEBUG_SERIAL
+
+/* Data */
+#define UART_RBR 0x00
+#define UART_TBR 0x00
+
+/* Control */
+#define UART_IER 0x01
+#define UART_IIR 0x02
+#define UART_FCR 0x02
+#define UART_LCR 0x03
+#define UART_MCR 0x04
+#define UART_DLL 0x00
+#define UART_DLM 0x01
+
+/* Status */
+#define UART_LSR 0x05
+#define UART_MSR 0x06
+#define UART_SCR 0x07
+
+int uart_can_tx_byte(base_port)
+	Bit16u base_port;
+{
+	return inb(base_port + UART_LSR) & 0x20;
+}
+
+void uart_wait_to_tx_byte(base_port)
+	Bit16u base_port;
+{
+	while(!uart_can_tx_byte(base_port))
+		;
+}
+
+void uart_wait_until_sent(base_port)
+	Bit16u base_port;
+{
+	while(!(inb(base_port + UART_LSR) & 0x40))
+		;
+}
+
+void uart_tx_byte(base_port, data)
+	Bit16u base_port;
+	Bit8u  data;
+{
+	uart_wait_to_tx_byte(base_port);
+	outb(base_port + UART_TBR, data);
+	/* Make certain the data clears the fifos */
+	uart_wait_until_sent(base_port);
+}
+
+#endif
+
   void
 send(action, c)
   Bit16u action;
   Bit8u  c;
 {
+#if DEBUG_SERIAL // hcyun
+	if ( c == '\n') uart_tx_byte(0x3f8, '\r');
+	uart_tx_byte(0x3f8, c);
+#else
   if (action & BIOS_PRINTF_DEBUG) outb(DEBUG_PORT, c);
   if (action & BIOS_PRINTF_INFO) outb(INFO_PORT, c);
   if (action & BIOS_PRINTF_SCREEN) {
     if (c == '\n') wrch('\r');
     wrch(c);
     }
+#endif
 }
 
   void