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6840ptm.cpp: Fix unsigned comparison

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This commit is contained in:
AJR 2022-10-22 11:23:33 -04:00
parent 6ef1a9c539
commit ee6ab91939
1 changed files with 1 additions and 1 deletions
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src/devices/machine/6840ptm.cpp
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@ -182,7 +182,7 @@ void ptm6840_device::deduct_from_counter(int idx)
lsb = (m_latch[idx] & 0xff) + 1;
msb--;
if (msb < 0)
if (msb == 0xffff)
{
// If MSB is less than zero, we've timed out, no need to manually reload
timed_out = true;