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-unspdrc: Fixed flag calculation, nw

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This commit is contained in:
MooglyGuy 2019-01-21 16:47:24 +01:00
parent 3b8eb63948
commit 5bf6bacba3
1 changed files with 8 additions and 8 deletions
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16
src/devices/cpu/unsp/unspdrc.cpp
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@ -649,8 +649,8 @@ void unsp_device::generate_update_nzsc(drcuml_block &block)
UML_SETc(block, uml::COND_NZ, I1);
UML_ROLINS(block, mem(&m_core->m_r[REG_SR]), I1, UNSP_C_SHIFT, UNSP_C);
UML_CMP(block, I2, 0);
UML_SETc(block, uml::COND_E, I1);
UML_TEST(block, I3, 0x0000ffff);
UML_SETc(block, uml::COND_Z, I1);
UML_ROLINS(block, mem(&m_core->m_r[REG_SR]), I1, UNSP_Z_SHIFT, UNSP_Z);
}
@ -1230,16 +1230,16 @@ bool unsp_device::generate_opcode(drcuml_block &block, compiler_state &compiler,
break;
case 0x02: // Subtract
UML_XOR(block, I3, I1, 0x0000ffff);
UML_ADD(block, I3, I3, I2);
UML_XOR(block, I1, I1, 0x0000ffff);
UML_ADD(block, I3, I1, I2);
UML_ADD(block, I3, I3, 1);
if (opa != 7)
generate_update_nzsc(block);
break;
case 0x03: // Subtract w/ carry
UML_XOR(block, I3, I1, 0x0000ffff);
UML_ADD(block, I3, I3, I2);
UML_XOR(block, I1, I1, 0x0000ffff);
UML_ADD(block, I3, I1, I2);
UML_TEST(block, mem(&m_core->m_r[REG_SR]), UNSP_C);
UML_JMPc(block, uml::COND_Z, no_carry);
UML_ADD(block, I3, I3, 1);
@ -1250,8 +1250,8 @@ bool unsp_device::generate_opcode(drcuml_block &block, compiler_state &compiler,
break;
case 0x04: // Compare
UML_XOR(block, I3, I1, 0x0000ffff);
UML_ADD(block, I3, I3, I2);
UML_XOR(block, I1, I1, 0x0000ffff);
UML_ADD(block, I3, I1, I2);
UML_ADD(block, I3, I3, 1);
if (opa != 7)
generate_update_nzsc(block);