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-rw-r--r--engines/sci/engine/kstring.cpp10
1 files changed, 6 insertions, 4 deletions
diff --git a/engines/sci/engine/kstring.cpp b/engines/sci/engine/kstring.cpp
index 6d61ad5f41..1c08bf597c 100644
--- a/engines/sci/engine/kstring.cpp
+++ b/engines/sci/engine/kstring.cpp
@@ -765,11 +765,14 @@ reg_t kStringCopy(EngineState *s, int argc, reg_t *argv) {
}
// The original engine ignores bad copies too
- if (index2 > string2Size)
+ if (index2 >= string2Size)
return NULL_REG;
// A count of -1 means fill the rest of the array
- uint32 count = argv[4].toSint16() == -1 ? string2Size - index2 + 1 : argv[4].toUint16();
+ uint32 count = string2Size - index2;
+ if (argv[4].toSint16() != -1) {
+ count = MIN(count, (uint32)argv[4].toUint16());
+ }
// reg_t strAddress = argv[0];
SciString *string1 = s->_segMan->lookupString(argv[0]);
@@ -781,8 +784,7 @@ reg_t kStringCopy(EngineState *s, int argc, reg_t *argv) {
// Note: We're accessing from c_str() here because the
// string's size ignores the trailing 0 and therefore
// triggers an assert when doing string2[i + index2].
- uint16 size = MIN(string2Size, count);
- for (uint16 i = 0; i < size; i++)
+ for (uint16 i = 0; i < count; i++)
string1->setValue(i + index1, string2[i + index2]);
return argv[0];