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m88000: fix unsigned division

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This commit is contained in:
Patrick Mackinlay 2023-04-05 18:37:10 +07:00
parent 3616e20fac
commit 9922c964c9
1 changed files with 3 additions and 1 deletions
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4
src/devices/cpu/m88000/m88000.cpp
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@ -762,7 +762,7 @@ void mc88100_device::execute(u32 const inst)
if (!(m_cr[PSR] & PSR_SFD1))
{
if (m_r[S2])
m_r[D] = s32(m_r[S1]) / s32(m_r[S2]);
m_r[D] = m_r[S1] / m_r[S2];
else
exception(E_INT_DIVIDE);
}
@ -1223,6 +1223,8 @@ void mc88100_device::set_cr(unsigned const cr, u32 const data)
case PSR:
case EPSR:
if (data & PSR_BO)
fatalerror("mc88100: little-endian mode not emulated (%s)\n", machine().describe_context());
m_cr[cr] = (m_cr[cr] & ~PSR_MASK) | (data & PSR_MASK);
break;