X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/7cfc777b0eb3b87f09d51207b01c05e49365c14e..76ef5273d84d043288e22c91d941558e75fcb793:/armsrc/BigBuf.c

diff --git a/armsrc/BigBuf.c b/armsrc/BigBuf.c
index 56259e68..851cf390 100644
--- a/armsrc/BigBuf.c
+++ b/armsrc/BigBuf.c
@@ -61,6 +61,10 @@ void BigBuf_Clear_ext(bool verbose)
 		Dbprintf("Buffer cleared (%i bytes)",BIGBUF_SIZE);
 }
 
+void BigBuf_Clear_keep_EM(void)
+{
+	memset(BigBuf,0,BigBuf_hi);
+}
 
 // allocate a chunk of memory from BigBuf. We allocate high memory first. The unallocated memory
 // at the beginning of BigBuf is always for traces/samples
@@ -184,8 +188,12 @@ bool RAMFUNC LogTrace(const uint8_t *btBytes, uint16_t iLen, uint32_t timestamp_
 	traceLen += iLen;
 
 	// parity bytes
-	if (parity != NULL && iLen != 0) {
-		memcpy(trace + traceLen, parity, num_paritybytes);
+	if (num_paritybytes != 0) {
+		if (parity != NULL) {
+			memcpy(trace + traceLen, parity, num_paritybytes);
+		} else {
+			memset(trace + traceLen, 0x00, num_paritybytes);
+		}
 	}
 	traceLen += num_paritybytes;
 
@@ -234,6 +242,8 @@ int LogTraceHitag(const uint8_t * btBytes, int iBits, int iSamples, uint32_t dwP
 
 	return TRUE;
 }
+
+
 // Emulator memory
 uint8_t emlSet(uint8_t *data, uint32_t offset, uint32_t length){
 	uint8_t* mem = BigBuf_get_EM_addr();