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release tool now supports Mega65 full ROM

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This commit is contained in:
FeralChild64 committed 2019-12-09 22:21:05 +01:00
1 parent d4ba48bb3a
commit 179719adc6
11 files changed
+120 -43
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src/release.cc
+118 -41
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@@ -20,9 +20,10 @@ typedef struct
{
std::string romTypeName;
size_t fileSize;
size_t signatureOffset; // offset to 'OR' string
bool requireIdBASIC;
bool requireIdKERNAL;
size_t signatureOffset1; // offset to 'OR' string
size_t signatureOffset2; // offset to 'OR' string
size_t idBasicOffset; // offset to BASIC identification string
size_t idKernalOffset; // offset to KERNAL identification byte
} ROMTypeDescriptionEntry;
@@ -30,22 +31,33 @@ const std::vector<ROMTypeDescriptionEntry> ROM_DEFINITIONS =
{
{
"BASIC",
8192, // file size
0x1F52, // signature offset
true, // whether to require BASIC ID
false // whether to require KERNAL ID
8192, // file size
0x1F52, // signature offset 1
0, // signature offset 2
0x0004, // BASIC ID offset
0 // KERNAL ID offset
},
{
"KERNAL",
8192, // file size
0x04B9, // signature offset
false, // whether to require BASIC ID
false // whether to require KERNAL ID
8192, // file size
0x04B9, // signature offset 1
0, // signature offset 2
0, // BASIC ID offset
0x1F80 // KERNAL ID offset
},
{
"MEGA65",
128 * 1024, // file size
0xBF52, // signature offset 1
0xE4B9, // signature offset 2
0xA004, // BASIC ID offset
0xFF80 // KERNAL ID offset
},
};
const uint16_t MAX_FILE_SIZE = 8192;
const uint32_t MAX_FILE_SIZE = 128 * 1024;
const std::vector<uint8_t> STR_MEGABAS = { 0x4D, 0x45, 0x47, 0x41, 0x42, 0x41, 0x53, 0x32 };
const std::vector<uint8_t> STR_OR = { 0x4F, 0x52 };
@@ -365,33 +377,49 @@ void ROMFile::recognizeSrcFile()
{
// Recognize source file type
for (auto &SPEC : ROM_DEFINITIONS)
auto checkSignature = [this](size_t signatureOffset) -> bool
{
if (srcFileContent.size() != SPEC.fileSize) continue;
if (SPEC.requireIdBASIC && memcmp(&srcFileContent[0x0004], STR_MEGABAS.data(), STR_MEGABAS.size()) != 0)
if (signatureOffset == 0)
{
continue;
return true;
}
if (SPEC.requireIdKERNAL && srcFileContent[0x1F80] != 0xF0)
if (memcmp(&srcFileContent[signatureOffset], STR_OR.data(), STR_OR.size()) != 0)
{
continue;
return false;
}
if (memcmp(&srcFileContent[SPEC.signatureOffset], STR_OR.data(), STR_OR.size()) != 0)
{
continue;
}
auto snapshotStrOffset = SPEC.signatureOffset + STR_OR.size() + 1;
auto snapshotStrOffset = signatureOffset + STR_OR.size() + 1;
if (memcmp(&srcFileContent[snapshotStrOffset], STR_SNAPSHOT.data(), STR_SNAPSHOT.size()) != 0)
{
continue;
return false;
}
auto zeroByteoffset = snapshotStrOffset + 0x10;
if (srcFileContent[zeroByteoffset] != 0)
{
return false;
}
return true;
};
for (auto &SPEC : ROM_DEFINITIONS)
{
if (srcFileContent.size() != SPEC.fileSize) continue;
if ((SPEC.idBasicOffset != 0) &&
memcmp(&srcFileContent[SPEC.idBasicOffset], STR_MEGABAS.data(), STR_MEGABAS.size()) != 0)
{
continue;
}
if ((SPEC.idKernalOffset != 0) && srcFileContent[SPEC.idKernalOffset] != 0xF0)
{
continue;
}
if (!checkSignature(SPEC.signatureOffset1) || !checkSignature(SPEC.signatureOffset2))
{
continue;
}
@@ -411,19 +439,26 @@ void ROMFile::dropUnmatchingDst()
{
// Drop unmatching destination file data
if (!dstFileContent.empty() && descPtr->requireIdBASIC &&
memcmp(&dstFileContent[0x0004], STR_MEGABAS.data(), STR_MEGABAS.size()) != 0)
if (!dstFileContent.empty() && (descPtr->idBasicOffset != 0) &&
memcmp(&dstFileContent[descPtr->idBasicOffset], STR_MEGABAS.data(), STR_MEGABAS.size()) != 0)
{
dstFileContent.clear();
}
if (!dstFileContent.empty() && descPtr->requireIdKERNAL && dstFileContent[0x1F80] != 0xF0)
if (!dstFileContent.empty() && (descPtr->idKernalOffset != 0) &&
dstFileContent[descPtr->idKernalOffset] != 0xF0)
{
dstFileContent.clear();
}
if (!dstFileContent.empty() &&
memcmp(&dstFileContent[descPtr->signatureOffset], STR_OR.data(), STR_OR.size()) != 0)
if (!dstFileContent.empty() && (descPtr->signatureOffset1 != 0) &&
memcmp(&dstFileContent[descPtr->signatureOffset1], STR_OR.data(), STR_OR.size()) != 0)
{
dstFileContent.clear();
}
if (!dstFileContent.empty() && (descPtr->signatureOffset2 != 0) &&
memcmp(&dstFileContent[descPtr->signatureOffset2], STR_OR.data(), STR_OR.size()) != 0)
{
dstFileContent.clear();
}
@@ -431,21 +466,54 @@ void ROMFile::dropUnmatchingDst()
void ROMFile::analyzeContent()
{
auto revOffset = descPtr->signatureOffset + 3;
auto revOffset1 = (descPtr->signatureOffset1 != 0) ? (descPtr->signatureOffset1 + 3) : 0;
auto revOffset2 = (descPtr->signatureOffset2 != 0) ? (descPtr->signatureOffset2 + 3) : 0;
if (revOffset1 == 0)
{
revOffset1 = revOffset2;
revOffset2 = 0;
}
if (revOffset1 == 0)
{
return;
}
if (dstFileContent.empty())
{
return;
}
// If two ID strings are present, they should be the same
if (0 != revOffset1 && 0 != revOffset2 &&
memcmp(&dstFileContent[revOffset1], &dstFileContent[revOffset2], 0x10) != 0)
{
return;
}
// Check if meaningful file content is really different
if ((memcmp(&srcFileContent[0x0000], &dstFileContent[0x0000], revOffset) == 0) &&
(memcmp(&srcFileContent[revOffset + 0x10], &dstFileContent[revOffset + 0x10],
descPtr->fileSize - revOffset - 0x10) == 0))
sameContent = true;
for (uint32_t idx = 0; idx < descPtr->fileSize; idx++)
{
sameContent = true;
}
if (revOffset1 != 0 && idx - revOffset1 < 0x10)
{
continue;
}
if (revOffset2 != 0 && idx - revOffset2 < 0x10)
{
continue;
}
if (srcFileContent[idx] != dstFileContent[idx])
{
sameContent = false;
break;
}
}
// Determine expected length of developer ID
@@ -453,12 +521,12 @@ void ROMFile::analyzeContent()
// Determine if old version is a devel version compatible with this tool
if (memcmp(&dstFileContent[revOffset], STR_DEV.data(), STR_DEV.size()) != 0)
if (memcmp(&dstFileContent[revOffset1], STR_DEV.data(), STR_DEV.size()) != 0)
{
return;
}
uint16_t idxDate = revOffset + STR_DEV.size();
uint16_t idxDate = revOffset1 + STR_DEV.size();
uint16_t idxLimit = idxDate + ENV_dateString.length();
uint16_t idx = idxDate;
@@ -503,8 +571,17 @@ void ROMFile::embedRevisionStr(const std::string &newRevisionStr)
while (revStr.length() < 16) revStr = revStr + '\0';
memcpy(&srcFileContent[descPtr->signatureOffset + 3],
revStr.data(), revStr.size());
if (descPtr->signatureOffset1 != 0)
{
memcpy(&srcFileContent[descPtr->signatureOffset1 + 3],
revStr.data(), revStr.size());
}
if (descPtr->signatureOffset2 != 0)
{
memcpy(&srcFileContent[descPtr->signatureOffset2 + 3],
revStr.data(), revStr.size());
}
}
void ROMFile::save()