Merge pull request #159 from nicolasnoble/break

Handle break instructions.

Author: nicolasnoble

src/core/ix86/iR3000A.cc

@@ -2362,7 +2362,16 @@ void X86DynaRecCPU::recSYSCALL() {
     m_stopRecompile = true;
 }
 
-void X86DynaRecCPU::recBREAK() {}
+void X86DynaRecCPU::recBREAK() {
+    gen.MOV32ItoM((uint32_t)&m_psxRegs.pc, (uint32_t)m_pc - 4);
+    gen.MOV32ItoR(PCSX::ix86::EBP, 0xffffffff);
+    gen.MOV32ItoM((uint32_t)&m_arg2, m_inDelaySlot ? 1 : 0);
+    gen.MOV32ItoM((uint32_t)&m_arg1, 0x30);
+    gen.MOV32ItoM((uint32_t)&m_functionPtr, 0);
+
+    m_pcInEBP = true;
+    m_stopRecompile = true;
+}
 
 void X86DynaRecCPU::recMFHI() {
     // Rd = Hi

src/core/psxinterpreter.cc

@@ -524,7 +524,13 @@ void InterpretedCPU::psxMTLO() { _rLo_ = _rRs_; }  // Lo = Rs
  * Format:  OP                                            *
  *********************************************************/
 void InterpretedCPU::psxBREAK() {
-    // Break exception - psx rom doens't handles this
+    PCSX::g_emulator.m_psxCpu->m_psxRegs.pc -= 4;
+    PCSX::g_emulator.m_psxCpu->psxException(0x30, m_inDelaySlot);
+    if (m_inDelaySlot) {
+        auto &delayedLoad = m_delayedLoadInfo[m_currentDelayedLoad];
+        if (!delayedLoad.pcActive) abort();
+        delayedLoad.pcActive = false;
+    }
 }
 
 void InterpretedCPU::psxSYSCALL() {