1 files changed, 907 insertions, 0 deletions
diff --git a/src/cinstruction.cpp b/src/cinstruction.cpp
new file mode 100755
index 0000000..9c6fba8
--- /dev/null
+++ b/src/cinstruction.cpp
@@ -0,0 +1,907 @@
+
+#include "cinstruction.h"
+#include "iostream"
+
+using namespace std ;
+
+
+CInstruction::CInstruction()
+{
+	m_cpu = (CPicoBlaze*) 0 ;
+}
+
+CInstruction::CInstruction( CPicoBlaze *cpu, uint32_t opcode )
+{
+	m_cpu = cpu ;
+
+	sX = ( opcode & 0x0f00 ) >> 8 ;
+	sY = ( opcode & 0x00f0 ) >> 4 ;
+	kk = ( opcode & 0x00ff ) >> 0 ;
+	pp = ( opcode & 0x00ff ) >> 0 ;
+	ss = ( opcode & 0x003f ) >> 0 ;
+	address = ( opcode & 0x03ff ) >> 0 ;
+	
+	hexcode = opcode ;
+}
+
+CInstruction::~CInstruction()
+{
+}
+
+void CInstruction::Print()
+{
+	cout << "Unknown instruction" ;
+}
+
+void ADD_SX_KK::Execute() 
+{
+	uint16_t val = m_cpu->s[ sX ] + kk ;
+	
+	m_cpu->flags.carry = ( val > 255 ) ;
+	m_cpu->flags.zero = ( val == 0 ) || ( val == 256 ) ;
+	
+	m_cpu->s[ sX ] = val ; 
+	m_cpu->pc->Next() ;
+}
+
+void ADD_SX_KK::Print()
+{
+	cout << "ADD " << "s" << sX << "," << kk ;
+}
+
+void ADD_SX_SY::Execute() 
+{
+	uint16_t val = m_cpu->s[ sX ] + m_cpu->s[ sY ] ;
+	
+	m_cpu->flags.carry = ( val > 255 ) ;
+	m_cpu->flags.zero = ( val == 0 ) || ( val == 256 ) ;
+	
+	m_cpu->s[ sX ] = val ; 
+	m_cpu->pc->Next() ;
+	
+}
+
+void ADD_SX_SY::Print()
+{
+	cout << "ADD " << "s" << sX << "," << "s" << sY ;
+}
+
+void ADDCY_SX_KK::Execute()
+{
+	uint16_t val = m_cpu->s[ sX ] + 1 + kk ;
+	
+	if ( m_cpu->flags.carry ) 
+		val = m_cpu->s[ sX ] + 1 + kk ;
+	else
+		val = m_cpu->s[ sX ] + kk ;
+	
+	m_cpu->s[ sX ] = val ;
+	m_cpu->flags.carry = (val > 255)  ;
+	m_cpu->flags.zero = (val == 0) || (val == 256) ;
+		
+	m_cpu->pc->Next() ;
+}
+
+void ADDCY_SX_KK::Print()
+{
+	cout << "ADDCY " << "s" << sX << "," << sY ;
+}
+
+void ADDCY_SX_SY::Execute()
+{
+	uint16_t val ;
+
+	if ( m_cpu->flags.carry ) 
+		val = m_cpu->s[ sX ] + 1 + m_cpu->s[ sY ] ;
+	else
+		val = m_cpu->s[ sX ] + m_cpu->s[ sY ] ;
+	
+	m_cpu->s[ sX ] = val ;
+	m_cpu->flags.carry = (val > 255)  ;
+	m_cpu->flags.zero = (val == 0) || (val == 256) ;
+		
+	m_cpu->pc->Next() ;
+}
+
+void ADDCY_SX_SY::Print()
+{
+	cout << "ADDCY " << "s" << sX << "," << "s" << sY ;
+}
+
+void AND_SX_KK::Execute()
+{
+
+	m_cpu->s[ sX ] = m_cpu->s[ sX ] & kk ;
+	m_cpu->flags.carry = 0 ;
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+
+	m_cpu->pc->Next() ;
+}
+
+void AND_SX_KK::Print()
+{
+	cout << "AND " << "s" << sX << "," << sY ;
+}
+
+void AND_SX_SY::Execute()
+{
+
+	m_cpu->s[ sX ] = m_cpu->s[ sX ] & m_cpu->s[ sY ] ;
+	m_cpu->flags.carry = 0 ;
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+
+	m_cpu->pc->Next() ;
+}
+
+void AND_SX_SY::Print()
+{
+	cout << "AND " << "s" << sX << "," << "s" << sY ;
+}
+
+void CALL::Execute()
+{
+	m_cpu->stack->Push( ( m_cpu->pc->Get() + 1)  % 0x400 ) ;
+	m_cpu->pc->Set( address ) ;
+}
+
+void CALL::Print()
+{
+	cout << "CALL " << address ;
+}
+
+void CALLC::Execute()
+{
+	if ( m_cpu->flags.carry ) {
+		m_cpu->stack->Push( m_cpu->pc->Get() ) ;
+		m_cpu->pc->Set( address ) ;
+	} else
+		m_cpu->pc->Next() ;
+}
+
+void CALLC::Print()
+{
+	cout << "CALL C " << address ;
+}
+
+void CALLNC::Execute()
+{
+	if ( !m_cpu->flags.carry ) {
+		m_cpu->stack->Push( m_cpu->pc->Get() ) ;
+		m_cpu->pc->Set( address ) ;
+	} else
+		m_cpu->pc->Next() ;
+}
+
+void CALLNC::Print()
+{
+	cout << "CALL NC " << address ;
+}
+
+void CALLNZ::Execute()
+{
+	if ( !m_cpu->flags.zero ) {
+		m_cpu->stack->Push( m_cpu->pc->Get() ) ;
+		m_cpu->pc->Set( address ) ;
+	} else
+		m_cpu->pc->Next() ;
+}
+
+void CALLNZ::Print()
+{
+	cout << "CALL NZ " << address ;
+}
+
+void CALLZ::Execute()
+{
+	if ( m_cpu->flags.zero ) {
+		m_cpu->stack->Push( m_cpu->pc->Get() ) ;
+		m_cpu->pc->Set( address ) ;
+	} else
+		m_cpu->pc->Next() ;
+}
+
+void CALLZ::Print()
+{
+	cout << "CALL Z " << address ;
+}
+
+
+void COMPARE_SX_KK::Execute()
+{
+	m_cpu->flags.carry = kk > m_cpu->s[ sX ] ;
+	m_cpu->flags.zero = kk == m_cpu->s[ sX ] ;
+
+	m_cpu->pc->Next() ;	
+}
+
+void COMPARE_SX_KK::Print()
+{
+	cout << "COMPARE s" << sX << ", "  << kk ;
+}
+
+void COMPARE_SX_SY::Execute()
+{
+	m_cpu->flags.carry = m_cpu->s[ sY ] > m_cpu->s[ sX ] ;
+	m_cpu->flags.zero = m_cpu->s[ sY ] == m_cpu->s[ sX ] ;
+
+	m_cpu->pc->Next() ;	
+}
+
+void COMPARE_SX_SY::Print()
+{
+	cout << "COMPARE s" << sX << ", s" << kk ;
+}
+
+void DISABLE_INTERRUPT::Execute()
+{
+	m_cpu->flags.interrupt_enable = false ;
+	m_cpu->pc->Next() ;
+}
+
+void DISABLE_INTERRUPT::Print()
+{
+	cout << "DISABLE INTERRUPT" ;
+}
+
+void ENABLE_INTERRUPT::Execute()
+{
+	m_cpu->flags.interrupt_enable = true ;
+	m_cpu->pc->Next() ;
+}
+
+void ENABLE_INTERRUPT::Print()
+{
+	cout << "ENABLE INTERRUPT" ;
+}
+
+void FETCH_SX_SS::Execute()
+{
+	m_cpu->s[ sX ] = m_cpu->scratch->Get( ss ) ;
+	m_cpu->pc->Next() ;
+}
+
+void FETCH_SX_SS::Print()
+{
+	cout << "FETCH " << "s" << sX << ", " << ss ;
+}
+
+void FETCH_SX_SY::Execute()
+{
+	m_cpu->s[ sX ] = m_cpu->scratch->Get( m_cpu->s[ sY ] & 0x3f ) ;
+	m_cpu->pc->Next() ;
+	
+	
+}
+
+void FETCH_SX_SY::Print() {
+	cout << "FETCH " << "s" << sX << ", " << "s" << sY ;
+}
+
+void INPUT_SX_SY::Execute()
+{
+	m_cpu->port->PortID( m_cpu->s[ sY ] ) ;
+	m_cpu->s[ sX ] = m_cpu->port->PortIn() ;
+	m_cpu->pc->Next() ;
+}
+
+void INPUT_SX_SY::Print()
+{
+	cout << "INPUT " << "s" << sX << ", " << "s" << sY ;
+}
+
+void INPUT_SX_PP::Execute()
+{
+	m_cpu->port->PortID( pp ) ;
+	m_cpu->s[ sX ] = m_cpu->port->PortIn() ;
+	m_cpu->pc->Next() ;
+}
+
+void INPUT_SX_PP::Print()
+{
+	cout << "INPUT " << "s" << sX << ", " << pp ;
+}
+
+void JUMP::Execute()
+{
+	m_cpu->pc->Set( address ) ;
+}
+
+void JUMP::Print()
+{
+	cout << "JUMP " << address ;
+}
+
+void JUMPC::Execute()
+{
+	if ( m_cpu->flags.carry )
+		m_cpu->pc->Set( address ) ;
+	else
+		m_cpu->pc->Next() ;
+}
+
+void JUMPC::Print()
+{
+	cout << "JUMP C " << address ;
+}
+
+void JUMPNC::Execute()
+{
+	if ( !m_cpu->flags.carry )
+		m_cpu->pc->Set( address ) ;
+	else
+		m_cpu->pc->Next() ;
+}
+
+void JUMPNC::Print()
+{
+	cout << "JUMP NC " << address ;
+}
+
+void JUMPNZ::Execute()
+{
+	if ( !m_cpu->flags.zero )
+		m_cpu->pc->Set( address ) ;
+	else
+		m_cpu->pc->Next() ;
+}
+
+void JUMPNZ::Print()
+{
+	cout << "JUMP NZ " << address ;
+}
+
+void JUMPZ::Execute()
+{
+	if ( m_cpu->flags.zero )
+		m_cpu->pc->Set( address ) ;
+	else
+		m_cpu->pc->Next() ;
+}
+
+void JUMPZ::Print()
+{
+	cout << "JUMP Z " << address ;
+}
+
+void LOAD_SX_KK::Execute()
+{
+	m_cpu->s[ sX ] = kk ;
+	m_cpu->pc->Next() ;
+}
+
+void LOAD_SX_KK::Print()
+{
+	cout << "LOAD " << "s" << sX << ", " << kk ;
+}
+
+void LOAD_SX_SY::Execute()
+{
+	m_cpu->s[ sX ] = m_cpu->s[ sY ] ;
+	m_cpu->pc->Next() ;
+}
+
+void LOAD_SX_SY::Print()
+{
+	cout << "LOAD " << "s" << sX << ", " << "s" << sY ;
+}
+
+void OR_SX_KK::Execute()
+{
+	m_cpu->s[ sX ] = m_cpu->s[ sX ] | kk ;
+	m_cpu->flags.carry = 0 ;
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void OR_SX_KK::Print()
+{
+	cout << "OR " << "s" << sX << ", " << kk ;
+}
+
+void OR_SX_SY::Execute()
+{
+	m_cpu->s[ sX ] = m_cpu->s[ sX ] | m_cpu->s[ sY ] ;
+	m_cpu->flags.carry = 0 ;
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void OR_SX_SY::Print()
+{
+	cout << "OR " << "s" << sX << ", " << "s" << sY ;
+}
+
+void OUTPUT_SX_SY::Execute()
+{
+	m_cpu->port->PortID( m_cpu->s[ sY ] ) ;
+	m_cpu->port->PortOut( m_cpu->s[ sX ] ) ;
+	m_cpu->pc->Next() ;
+}
+
+void OUTPUT_SX_SY::Print()
+{
+	cout << "OUTPUT " << "s" << sX << ", " << "s" << sY ;
+}
+
+void OUTPUT_SX_PP::Execute()
+{
+	m_cpu->port->PortID( pp ) ;
+	m_cpu->port->PortOut( m_cpu->s[ sX ] ) ;
+	m_cpu->pc->Next() ;
+}
+
+void OUTPUT_SX_PP::Print()
+{
+	cout << "OUTPUT " << "s" << sX << ", " << pp ;
+}
+
+void RETURN::Execute()
+{
+	m_cpu->pc->Set( m_cpu->stack->Pop() ) ;
+}
+
+void RETURN::Print()
+{
+	cout << "RETURN" ;
+}
+
+void RETURNC::Execute()
+{
+	if ( m_cpu->flags.carry )
+		m_cpu->pc->Set( m_cpu->stack->Pop() ) ;
+	else
+		m_cpu->pc->Next() ;
+}
+
+void RETURNC::Print()
+{
+	cout << "RETURN C" ;
+}
+
+void RETURNNC::Execute()
+{
+	if ( !m_cpu->flags.carry )
+		m_cpu->pc->Set( m_cpu->stack->Pop() ) ;
+	else
+		m_cpu->pc->Next() ;
+}
+
+void RETURNNC::Print()
+{
+	cout << "RETURN NC" ;
+}
+
+void RETURNNZ::Execute()
+{
+	if ( !m_cpu->flags.zero )
+		m_cpu->pc->Set( m_cpu->stack->Pop() ) ;
+	else
+		m_cpu->pc->Next() ;
+}
+
+void RETURNNZ::Print()
+{
+	cout << "RETURN NZ" ;
+}
+
+void RETURNZ::Execute()
+{
+	if ( m_cpu->flags.zero )
+		m_cpu->pc->Set( m_cpu->stack->Pop() ) ;
+	else
+		m_cpu->pc->Next() ;
+}
+
+void RETURNZ::Print()
+{
+	cout << "RETURN Z" ;
+}
+
+void RETURNI_DISABLE::Execute()
+{
+	m_cpu->pc->Set( m_cpu->stack->Pop() ) ;
+	m_cpu->flags.carry = m_cpu->flags.preserved_carry ;
+	m_cpu->flags.zero = m_cpu->flags.preserved_zero ;
+	m_cpu->flags.interrupt_enable = false ;
+}
+
+void RETURNI_DISABLE::Print()
+{
+	cout << "RETURNI DISABLE" ;
+}
+
+void RETURNI_ENABLE::Execute()
+{
+	m_cpu->pc->Set( m_cpu->stack->Pop() ) ;
+	m_cpu->flags.carry = m_cpu->flags.preserved_carry ;
+	m_cpu->flags.zero = m_cpu->flags.preserved_zero ;
+	m_cpu->flags.interrupt_enable = true ;
+}
+
+void RETURNI_ENABLE::Print()
+{
+	cout << "RETURNI ENABLE" ;
+}
+
+void RL_SX::Execute()
+{
+	m_cpu->flags.carry = ( m_cpu->s[ sX ] & 0x80 ) != 0 ;
+
+	m_cpu->s[ sX ] <<= 1 ;
+	if ( m_cpu->flags.carry )
+		m_cpu->s[ sX ] |= 1 ;
+
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void RL_SX::Print()
+{
+	cout << "RL s" << sX ;
+}
+
+void RR_SX::Execute()
+{
+	m_cpu->flags.carry = ( m_cpu->s[ sX ] & 0x01 ) != 0 ;
+
+	m_cpu->s[ sX ] >>= 1 ;
+	if ( m_cpu->flags.carry )
+		m_cpu->s[ sX ] |= 0x80 ;
+
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void RR_SX::Print()
+{
+	cout << "RR s" << sX ;
+}
+
+
+void SL0_SX::Execute()
+{
+	m_cpu->flags.carry = ( m_cpu->s[ sX ] & 0x80 ) != 0 ;
+
+	m_cpu->s[ sX ] <<= 1 ;
+
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void SL0_SX::Print()
+{
+	cout << "SL0 s" << sX ;
+}
+
+void SL1_SX::Execute()
+{
+	m_cpu->flags.carry = ( m_cpu->s[ sX ] & 0x80 ) != 0 ;
+
+	m_cpu->s[ sX ] <<= 1 ;
+	m_cpu->s[ sX ] |= 1 ;
+
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void SL1_SX::Print()
+{
+	cout << "SL1 s" << sX ;
+}
+
+
+void SLA_SX::Execute()
+{
+	bool c ;
+
+	c = m_cpu->flags.carry ;
+
+	m_cpu->flags.carry = ( m_cpu->s[ sX ] & 0x80 ) != 0 ;
+
+	m_cpu->s[ sX ] <<= 1 ;
+	if ( c )
+		m_cpu->s[ sX ] |= 1 ;
+	
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void SLA_SX::Print()
+{
+	cout << "SLA s" << sX ;
+}
+
+
+void SLX_SX::Execute()
+{
+	m_cpu->flags.carry = ( m_cpu->s[ sX ] & 0x80 ) != 0 ;
+
+	m_cpu->s[ sX ] <<= 1 ;
+	if ( m_cpu->s[ sX ] & 0x02 )
+		m_cpu->s[ sX ] |= 1 ;
+	
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void SLX_SX::Print()
+{
+	cout << "SLX s" << sX ;
+}
+
+
+void SR0_SX::Execute()
+{
+	m_cpu->flags.carry = m_cpu->s[ sX ] & 0x01 ;
+	m_cpu->s[ sX ] >>= 1 ;
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void SR0_SX::Print()
+{
+	cout << "SR0 s" << sX ;
+}
+
+
+void SR1_SX::Execute()
+{
+	m_cpu->flags.carry = m_cpu->s[ sX ] & 0x01 ;
+	m_cpu->s[ sX ] >>= 1 ;
+	m_cpu->s[ sX ] |= 0x80 ;
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void SR1_SX::Print()
+{
+	cout << "SR1 s" << sX ;
+}
+
+
+void SRA_SX::Execute()
+{
+	bool c = m_cpu->flags.carry ;
+	m_cpu->flags.carry = m_cpu->s[ sX ] & 0x01 ;
+	m_cpu->s[ sX ] >>= 1 ;
+	if ( c )
+		m_cpu->s[ sX ] |= 0x80 ;
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void SRA_SX::Print()
+{
+	cout << "SRA s" << sX ;
+}
+
+
+void SRX_SX::Execute()
+{
+	m_cpu->flags.carry = m_cpu->s[ sX ] & 0x01 ;
+	m_cpu->s[ sX ] >>= 1 ;
+	if ( m_cpu->s[ sX ] & 0x40  )
+		m_cpu->s[ sX ] |= 0x80 ;
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void SRX_SX::Print()
+{
+	cout << "SRX s" << sX ;
+}
+
+
+void STORE_SX_SS::Execute()
+{
+	m_cpu->scratch->Set( ss, m_cpu->s[ sX ] ) ;
+	m_cpu->pc->Next() ;
+
+}
+
+void STORE_SX_SS::Print()
+{
+	cout << "STORE s" << sX << ", " << ss ;
+}
+
+
+void STORE_SX_SY::Execute()
+{
+	m_cpu->scratch->Set( m_cpu->s[ sY ], m_cpu->s[ sX ] ) ;
+	m_cpu->pc->Next() ;
+}
+
+void STORE_SX_SY::Print()
+{
+	cout << "STORE s" << sX << ", s" << sY ;
+}
+
+void SUB_SX_KK::Execute()
+{
+	int val ;
+	
+	val = m_cpu->s[ sX ] ;
+	val -= kk ;
+
+	m_cpu->flags.carry = val < 0 ;
+	m_cpu->flags.zero = val == 0 ;
+	
+	m_cpu->s[ sX ] -= kk ;
+
+	m_cpu->pc->Next() ;
+}
+
+void SUB_SX_KK::Print()
+{
+	cout << "SUB s" << sX << ", " << kk ;
+}
+
+void SUB_SX_SY::Execute()
+{
+	int val ;
+	
+	val = m_cpu->s[ sX ] ;
+	val -= m_cpu->s[ sY ] ;
+
+	m_cpu->flags.carry = val < 0 ;
+	m_cpu->flags.zero = val == 0 ;
+	
+	m_cpu->s[ sX ] -= m_cpu->s[ sY ] ;
+
+	m_cpu->pc->Next() ;
+}
+
+void SUB_SX_SY::Print()
+{
+	cout << "SUB s" << sX << ", s" << sY ;
+}
+
+
+void SUBCY_SX_KK::Execute()
+{
+	int val ;
+	bool c = m_cpu->flags.carry ;	
+	val = m_cpu->s[ sX ] ;
+	val -= kk ;
+	if ( c )
+		val -= 1 ;
+
+	m_cpu->flags.carry = val < 0 ;
+	m_cpu->flags.zero = val == 0 ;
+
+	m_cpu->s[ sX ] = val ;
+
+	m_cpu->pc->Next() ;
+}
+
+void SUBCY_SX_KK::Print()
+{
+	cout << "SUBCY s" << sX << ", " << kk ;
+}
+
+void SUBCY_SX_SY::Execute()
+{
+	int val ;
+	bool c = m_cpu->flags.carry ;	
+	val = m_cpu->s[ sX ] ;
+	val -= m_cpu->s[ sY ] ;
+	if ( c )
+		val -= 1 ;
+
+	m_cpu->flags.carry = val < 0 ;
+	m_cpu->flags.zero = val == 0 ;
+	m_cpu->s[ sX ] = val ;
+
+	m_cpu->pc->Next() ;
+}
+
+void SUBCY_SX_SY::Print()
+{
+	cout << "SUBCY s" << sX << ", s" << sY ;
+}
+
+void TEST_SX_KK::Execute()
+{
+	uint8_t and_test = ( m_cpu->s[ sX ] & kk ) ;
+	m_cpu->flags.zero = and_test == 0 ;
+
+	int i ;
+
+	uint8_t xor_test = 0, b ;
+
+	for ( i = 0 ; i < 7 ; i++ ) {
+		b = ( and_test & ( 1 << i ) ) != 0 ; 
+		xor_test = b ^ xor_test ;	
+	}
+
+	m_cpu->flags.carry = xor_test != 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void TEST_SX_KK::Print()
+{
+	cout << "TEST s" << sX << ", " << kk ;
+}
+
+void TEST_SX_SY::Execute()
+{
+	uint8_t and_test = ( m_cpu->s[ sX ] & m_cpu->s[ sY ] ) ;
+	m_cpu->flags.zero = and_test == 0 ;
+
+	int i ;
+
+	uint8_t xor_test = 0, b ;
+
+	for ( i = 0 ; i < 7 ; i++ ) {
+		b = ( and_test & ( 1 << i ) ) != 0 ; 
+		xor_test = b ^ xor_test ;	
+	}
+
+	m_cpu->flags.carry = xor_test != 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void TEST_SX_SY::Print()
+{
+	cout << "TEST s" << sX << ", s" << sY ;
+}
+
+void XOR_SX_KK::Execute()
+{
+	m_cpu->s[ sX ] ^= kk ;
+	
+	m_cpu->flags.carry = false ;
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void XOR_SX_KK::Print()
+{
+	cout << "XOR s" << sX << ", " << kk ;
+}
+
+
+void XOR_SX_SY::Execute()
+{
+	m_cpu->s[ sX ] ^= m_cpu->s[ sY ] ;
+	
+	m_cpu->flags.carry = false ;
+	m_cpu->flags.zero = m_cpu->s[ sX ] == 0 ;
+	m_cpu->pc->Next() ;
+}
+
+void XOR_SX_SY::Print()
+{
+	cout << "XOR s" << sX << ", s" << sY ;
+}
+
+void RESET_EVENT::Execute() 
+{
+	m_cpu->pc->Set( 0 ) ;
+	m_cpu->flags.interrupt_enable = false ;
+	m_cpu->flags.zero = false ;
+	m_cpu->flags.carry = false ;
+	m_cpu->stack->Reset() ;
+} 
+
+void RESET_EVENT::Print()
+{
+	cout << "(RESET EVENT)" ;
+}
+
+void INTERRUPT_EVENT::Execute()
+{
+	if ( m_cpu->flags.interrupt_enable ) {
+		m_cpu->flags.interrupt_enable = false ;
+		m_cpu->stack->Push( m_cpu->pc->Get() ) ;
+		m_cpu->flags.preserved_carry = m_cpu->flags.carry ;
+		m_cpu->flags.preserved_zero = m_cpu->flags.zero ;
+		m_cpu->pc->Set( 0x3FF ) ;	
+	}
+}
+
+void INTERRUPT_EVENT::Print()
+{
+	cout << "(INTERRUPT EVENT)" ;
+}
+