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Merge pull request #18 from Wunkolo/bext

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Add `Helpers:{getBits,getBit}`
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wheremyfoodat 2023-06-10 12:54:31 +03:00 • committed by GitHub
commit fd600a59c1
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9 changed files with 180 additions and 147 deletions
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4
src/core/loader/lz77.cpp
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@ -23,7 +23,7 @@ bool CartLZ77::decompress(std::vector<u8>& output, const std::vector<u8>& input)
std::memcpy(&bufferTopAndBottom, footer, sizeof(u32));
u32 out = sizeDecompressed; // TODO: Is this meant to be u32 or s32?
u32 index = sizeCompressed - ((bufferTopAndBottom >> 24) & 0xff);
u32 index = sizeCompressed - (Helpers::getBits<24, 8>(bufferTopAndBottom));
u32 stopIndex = sizeCompressed - (bufferTopAndBottom & 0xffffff);
// Set all of the decompressed buffer to 0 and copy the compressed buffer to the start of it
@ -48,7 +48,7 @@ bool CartLZ77::decompress(std::vector<u8>& output, const std::vector<u8>& input)
index -= 2;
u32 segmentOffset = compressed[index] | (compressed[index + 1] << 8);
u32 segment_size = ((segmentOffset >> 12) & 15) + 3;
u32 segment_size = (Helpers::getBits<12, 4>(segmentOffset)) + 3;
segmentOffset &= 0x0FFF;
segmentOffset += 2;