I've got code in my project to dump out a data buffer using printf. STDOUT is redirected to the ULink2/uVision "Debug (printf) viewer".
It should produce output like this:
00000000: 00020400 00000000 5C0C0000 5C0C0000 ........\...\... 00000010: 5C0C0000 5C0C0000 5C0C0000 5C0C0000 \...\...\...\... 00000020: 5C0C0000 5C0C0000 C2030000 5C0C0000 \...\.......\... 00000030: 5C0C0000 B4050000 5C0C0000 5C0C0000 \.......\...\... 00000040: 5C0C0000 F4050000 5C0C0000 5C0C0000 \.......\...\... 00000050: 20060000 5C0C0000 5C0C0000 5C0C0000 ...\...\...\... 00000060: 5C0C0000 5C0C0000 5C0C0000 5C0C0000 \...\...\...\... 00000070: 5C0C0000 5C0C0000 5C0C0000 5C0C0000 \...\...\...\... 00000080: 5C0C0000 5C0C0000 5C0C0000 5C0C0000 \...\...\...\... 00000090: 5C0C0000 5C0C0000 5C0C0000 5C0C0000 \...\...\...\... 000000A0: 5C0C0000 5C0C0000 5C0C0000 5C0C0000 \...\...\...\... 000000B0: 5C0C0000 5C0C0000 5C0C0000 5C0C0000 \...\...\...\... 000000C0: 5C0C0000 5C0C0000 5C0C0000 5C0C0000 \...\...\...\... 000000D0: 5C0C0000 5C0C0000 5C0C0000 5C0C0000 \...\...\...\... 000000E0: 5C0C0000 5C0C0000 5C0C0000 5C0C0000 \...\...\...\... 000000F0: 5C0C0000 5C0C0000 5C0C0000 5C0C0000 \...\...\...\...
but what I get in the debug viewer is this:
0000 5C0C0000 \...\...\...\... 00000050: 5C0C0000 5C0C0000 5C0C0000 5C0C0000 \...\...\...\... 00000060: 5C0C0000 5C0C0000 5C0C0000 5C0C0000 \...\...\...\... 00000070: 5C0C0000 5C0C0000 5C0C0000 5C0C0000 \...\...\...\... 00000080: 5C0C0000 C8020000 5C0C0000 5C0C0000 \.......\...\... FFFFF00 ................
I suspect some form of overrun is occurring. If I step through the code I get all the output as I expect.Code:
void dumpHex(const void* DataPointer, size_t DataLength) { if (NULL != DataPointer) { char StringBuffer[100] = { '\0' }; const unsigned char* p = (const unsigned char*)DataPointer; unsigned char* pd; unsigned char* pa; size_t PointerSize = sizeof(void*); size_t DataOffset = (PointerSize * 2) + 2; size_t AsciiOffset = DataOffset + 38; size_t LineLength = AsciiOffset + 16; size_t index, i; int n; index = 0; while (index < DataLength) { pd = (unsigned char*)StringBuffer + DataOffset; pa = (unsigned char*)StringBuffer + AsciiOffset; memset(StringBuffer, ' ', LineLength); n = snprintf(StringBuffer, sizeof(StringBuffer), "%p", (void*)(index)); StringBuffer[n] = ':'; for (i = 0; (i < 16) && (index < DataLength); i++) { if ((i % 4) == 0) pd++; *pd++ = HEX[*p / 16]; *pd++ = HEX[*p % 16]; *pa++ = (' ' == *p || isgraph(*p)) ? *p : '.'; index++; p++; } printf("%s\n", StringBuffer); } } }
What do I need to do to ensure I get all the output?Thank you, David