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#11, fixed overlay decoding again .

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Zero Fanker 2024-06-05 00:54:17 -04:00
parent d206226c9f
commit 9cddabbb3a
1 changed files with 4 additions and 4 deletions
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8
3rdParty/xcc/misc/shp_decode.cpp vendored
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@ -323,7 +323,7 @@ int decode80(const byte source[], byte dest[])
op_code = *source_ptr++;
if (!(op_code & 0x80)) {
count = (op_code >> 4) + 3;
copy_ptr = dest_ptr - ((uint64_t)*source_ptr++ + (((uint64_t)op_code & 0x0f) << 8));
copy_ptr = dest_ptr - ((uint64_t)*source_ptr++ + ((uint64_t)(op_code & 0x0f) << 8));
while (count--) *dest_ptr++ = *copy_ptr++;
} else {
if (!(op_code & 0x40)) {
@ -339,17 +339,17 @@ int decode80(const byte source[], byte dest[])
word_data = data = *(source_ptr + 2);
word_data = (word_data << 56) + (word_data << 48) + (word_data << 40) + (word_data << 32) + (word_data << 24) + (word_data << 16) + (word_data << 8) + word_data;
source_ptr += 3;
copy_ptr = dest_ptr + 8 - ((uint64_t)dest_ptr & 0x7);
copy_ptr = dest_ptr + 4 - ((uint64_t)dest_ptr & 0x3);
count -= (copy_ptr - dest_ptr);
while (dest_ptr < copy_ptr) *dest_ptr++ = data;
word_dest_ptr = (uint64_t*)dest_ptr;
dest_ptr += (count & 0xfffffffffffffff8);
dest_ptr += (count & 0xfffffffffffffffc);
while (word_dest_ptr < (uint64_t*)dest_ptr) {
*word_dest_ptr = word_data;
*(word_dest_ptr + 1) = word_data;
word_dest_ptr += 2;
}
copy_ptr = dest_ptr + (count & 0x7);
copy_ptr = dest_ptr + (count & 0x3);
while (dest_ptr < copy_ptr) *dest_ptr++ = data;
} else {
if (op_code == 0xff) {