diff --git a/jtag/ChangeLog b/jtag/ChangeLog
index 560a8486..4fcbc6a6 100644
--- a/jtag/ChangeLog
+++ b/jtag/ChangeLog
@@ -1,4 +1,9 @@
-2003-09-10  Marcel Telka  <marcel@telka.sk>
+2003-09-11  Marcel Telka  <marcel@telka.sk>
+
+	* src/tap/cable/wiggler.c (wiggler_init, wiggler_clock, wiggler_get_tdo, wiggler_set_trst): Fixed
+		inverted TRST signal (see patch 799377 for more info, thanks to Mike Tesch for reporting).
+
+2003-09-11  Marcel Telka  <marcel@telka.sk>
 
 	* src/cmd/dr.c (cmd_dr_run): Added test for missing active instruction and data register (thanks to
 		Mike Tesch for reporting).
diff --git a/jtag/NEWS b/jtag/NEWS
index 97010e19..1a9e6f9f 100644
--- a/jtag/NEWS
+++ b/jtag/NEWS
@@ -11,6 +11,8 @@ See libbrux/NEWS for more news.
 		(based on patch 792591, thanks to Guennadi Liakhovetski).
 	* Added 'initbus' command to allow dynamic bus driver loading.
 	* Added BOOT_DEF register emulation for PXA2x0 bus driver.
+	* Fixed inverted TRST signal for Macraigor Wiggler JTAG Cable see patch 799377 for more info,
+		thanks to Mike Tesch for reporting).
 	* Fixed minor bugs.
 
 jtag-0.5 (2003-08-19):
diff --git a/jtag/src/tap/cable/wiggler.c b/jtag/src/tap/cable/wiggler.c
index 4e03c597..0b5b9602 100644
--- a/jtag/src/tap/cable/wiggler.c
+++ b/jtag/src/tap/cable/wiggler.c
@@ -41,7 +41,7 @@
 #define	TDI	3
 #define	TCK	2
 #define	TMS	1
-#define	TRST	0
+#define	nTRST	0
 
 /*
  * 7 - BUSY (pin 11)
@@ -61,11 +61,11 @@ wiggler_init( cable_t *cable )
 		return -1;
 
 	if ((data = parport_get_data( cable->port )) < 0) {
-		if (parport_set_data( cable->port, 1 << TRST ))
+		if (parport_set_data( cable->port, 0 << nTRST ))
 			return -1;
 		PARAM_TRST(cable) = 1;
 	} else
-		PARAM_TRST(cable) = (data >> TRST) & 1;
+		PARAM_TRST(cable) = ((data >> nTRST) ^ 1) & 1;
 
 	return 0;
 }
@@ -76,16 +76,16 @@ wiggler_clock( cable_t *cable, int tms, int tdi )
 	tms = tms ? 1 : 0;
 	tdi = tdi ? 1 : 0;
 
-	parport_set_data( cable->port, (PARAM_TRST(cable) << TRST) | (0 << TCK) | (tms << TMS) | (tdi << TDI) );
+	parport_set_data( cable->port, ((PARAM_TRST(cable) ^ 1) << nTRST) | (0 << TCK) | (tms << TMS) | (tdi << TDI) );
 	cable_wait();
-	parport_set_data( cable->port, (PARAM_TRST(cable) << TRST) | (1 << TCK) | (tms << TMS) | (tdi << TDI) );
+	parport_set_data( cable->port, ((PARAM_TRST(cable) ^ 1) << nTRST) | (1 << TCK) | (tms << TMS) | (tdi << TDI) );
 	cable_wait();
 }
 
 static int
 wiggler_get_tdo( cable_t *cable )
 {
-	parport_set_data( cable->port, (PARAM_TRST(cable) << TRST) | (0 << TCK) );
+	parport_set_data( cable->port, ((PARAM_TRST(cable) ^ 1) << nTRST) | (0 << TCK) );
 	cable_wait();
 	return (parport_get_status( cable->port ) >> TDO) & 1;
 }
@@ -95,7 +95,7 @@ wiggler_set_trst( cable_t *cable, int trst )
 {
 	PARAM_TRST(cable) = trst ? 1 : 0;
 
-	parport_set_data( cable->port, PARAM_TRST(cable) << TRST );
+	parport_set_data( cable->port, (PARAM_TRST(cable) ^ 1) << nTRST );
 	return PARAM_TRST(cable);
 }