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Fix memory problem of Might and Magic III.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2555
This commit is contained in:
Peter Veenstra 2006-03-27 12:34:04 +00:00
parent 960c0a6e5f
commit 49529ce994
1 changed files with 5 additions and 2 deletions
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7
src/dos/dos_memory.cpp
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@ -52,7 +52,7 @@ void DOS_FreeProcessMemory(Bit16u pspseg) {
if (mcb.GetType()==0x5a) {
/* check if currently last block reaches up to the PCJr graphics memory */
if ((machine==MCH_PCJR) && (mcb_segment+mcb.GetSize()==0x17fe) &&
(real_readb(0x17ff,0)==0x4d) && (real_readw(0x17ff,1)==8)) {
(real_readb(0x17ff,0)==0x4d) && (real_readw(0x17ff,1)==8)) {
/* re-enable the memory past segment 0x2000 */
mcb.SetType(0x4d);
} else break;
@ -184,7 +184,10 @@ bool DOS_AllocateMemory(Bit16u * segment,Bit16u * blocks) {
if (found_seg_size==*blocks) {
/* use the whole block */
mcb.SetPSPSeg(dos.psp());
*segment=found_seg+1;
//Not consistent with line 124. But how many application will use this information ?
mcb.SetFileName(psp_name);
*segment = found_seg+1;
return true;
}
*segment = found_seg+1+found_seg_size - *blocks;
mcb_next.SetPt((Bit16u)(*segment-1));