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Added cmd line arg -rom <file> for 12KB & 16KB roms (#771)

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This commit is contained in:
tomcw
2020-03-25 23:05:02 +00:00
parent c204783816
commit 3659603228
5 changed files with 77 additions and 5 deletions
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source/Memory.cpp
+49
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@@ -1491,6 +1491,7 @@ void MemInitialize()
CreateLanguageCard();
MemInitializeROM();
MemInitializeCustomROM();
MemInitializeCustomF8ROM();
MemInitializeIO();
MemReset();
@@ -1645,6 +1646,54 @@ void MemInitializeCustomF8ROM(void)
}
}
void MemInitializeCustomROM(void)
{
if (g_hCustomRom == INVALID_HANDLE_VALUE)
return;
std::vector<BYTE> oldRom;
oldRom.resize(Apple2RomSize);
memcpy(&oldRom[0], memrom, Apple2RomSize);
std::vector<BYTE> oldRomC0;
oldRomC0.resize(CxRomSize);
memcpy(&oldRomC0[0], pCxRomInternal, CxRomSize);
SetFilePointer(g_hCustomRom, 0, NULL, FILE_BEGIN);
DWORD uNumBytesRead;
BOOL bRes = TRUE;
if (GetFileSize(g_hCustomRom, NULL) == Apple2eRomSize)
{
bRes = ReadFile(g_hCustomRom, pCxRomInternal, CxRomSize, &uNumBytesRead, NULL);
if (uNumBytesRead != CxRomSize)
{
memcpy(pCxRomInternal, &oldRomC0[0], CxRomSize); // ROM at $C000...$CFFF
bRes = FALSE;
}
}
if (bRes)
{
bRes = ReadFile(g_hCustomRom, memrom, Apple2RomSize, &uNumBytesRead, NULL);
if (uNumBytesRead != Apple2RomSize)
{
memcpy(memrom, &oldRom[0], Apple2RomSize); // ROM at $D000...$FFFF
bRes = FALSE;
}
}
// NB. If succeeded, then keep g_hCustomRom handle open - so that any next restart can load it again
if (!bRes)
{
MessageBox( g_hFrameWindow, "Failed to read custom rom", TEXT("AppleWin Error"), MB_OK );
CloseHandle(g_hCustomRom);
g_hCustomRom = INVALID_HANDLE_VALUE;
// Failed, so use default rom...
}
}
// Called by:
// . MemInitialize()
// . Snapshot_LoadState_v2()