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Jonathan Campbell
2025-10-06 20:36:40 -07:00
parent e0ad594dff
commit 2c21434ebc
1 changed files with 4 additions and 2 deletions
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6
src/dos/dos_memory.cpp
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@@ -387,17 +387,19 @@ bool DOS_ResizeMemory(uint16_t segment,uint16_t * blocks) {
}
uint16_t total=mcb.GetSize();
DOS_MCB mcb_next(segment+total);
if (*blocks > total)
DOS_CompressMemory(segment-1);
else
DOS_CompressMemory();
total=mcb.GetSize(); /* DOS_CompressMemory() may change the MCB block size if this is a free block */
DOS_MCB mcb_next(segment+total);
if (*blocks<=total) {
if (GCC_UNLIKELY(*blocks==total)) {
/* Nothing to do, however if the block is freed, canonical MS-DOS behavior is to assign your PSP segment as if allocated (Incentiv by DID, party '94) */
if (mcb.GetPSPSeg()==MCB_FREE && freed_mcb_allocate_on_resize)
if (mcb.GetPSPSeg()==MCB_FREE)
mcb.SetPSPSeg(dos.psp());
return true;