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workaround direct access to FCBS from Apple Personal Diagnostics in MacOS 9

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This commit is contained in:
gbeauche 2005-01-30 17:39:44 +00:00
parent 4316979264
commit a79ecf38ef
1 changed files with 16 additions and 0 deletions
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16
SheepShaver/src/rsrc_patches.cpp
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@ -554,6 +554,22 @@ void CheckLoad(uint32 type, int16 id, uint16 *p, uint32 size)
p[(base + 0x06) >> 1] = htons(0x0020);
D(bug(" patch 2 applied\n"));
}
} else if (type == FOURCC('C','O','D','E') && id == 27 && size == 25024) {
D(bug("CODE 27 found [Apple Personal Diagnostics]\n"));
// Don't access FCBs directly in Apple Personal Diagnostics (MacOS 9)
// FIXME: this should not be called in the first place, use UTResolveFCB?
static const uint8 dat[] = {0x2d, 0x78, 0x03, 0x4e, 0xff, 0xf8, 0x20, 0x6e, 0xff, 0xf8};
base = find_rsrc_data((uint8 *)p, size, dat, sizeof(dat));
if (base
&& ReadMacInt16(0x3f6) == 4 /* FSFCBLen */
&& p[(base + 0x1a) >> 1] == htons(0x605e)
&& p[(base + 0x80) >> 1] == htons(0x7000))
{
p[(base + 0x1a) >> 1] = htons(0x6064);
D(bug(" patch1 applied\n"));
}
}
}