// $bb - $mask & [X + $disp8]
INLINE void btst_ix( void )
{
UINT8 val;
UINT8 mask = M_RDOP_ARG(PCD);
{EA=X+(M_RDOP_ARG(PCD+1));PC+=2;}
val = RM(EAD) & mask;
CLR_NZVC; SET_NZ8(val);
}
/* Get next opcode argument and increment program counter */
unsigned alpha8201_cpu_device::M_RDMEM_OPCODE()
{
unsigned retval;
retval=M_RDOP_ARG(m_pc.w.l);
m_pc.b.l++;
return retval;
}
static void banz(void)
{
if ((R.AR[ARP] & 0x01ff) == 0) R.PC++ ;
else R.PC = M_RDOP_ARG(R.PC);
R.ALU = R.AR[ARP]; R.ALU-- ;
R.AR[ARP] = (R.AR[ARP] & 0xfe00) | (R.ALU & 0x01ff);
}
static void blz(void)
{
if ( (INT32)(R.ACC.d) < 0 )
R.PC = M_RDOP_ARG(R.PC);
else
R.PC++ ;
}
/* Get next opcode argument and increment program counter */
INLINE unsigned M_RDMEM_OPCODE (void)
{
unsigned retval;
retval=M_RDOP_ARG(PC);
PCL++;
return retval;
}
/* Get next opcode argument and increment program counter */
INLINE unsigned M_RDMEM_OPCODE (void)
{
unsigned retval;
retval=M_RDOP_ARG(R.PC.w.l);
R.PC.w.l++;
return retval;
}
static void bioz(void)
{
if (BIO_IN != CLEAR_LINE)
R.PC = M_RDOP_ARG(R.PC);
else
R.PC++ ;
}
static void bz(void)
{
if (R.ACC.d == 0)
R.PC = M_RDOP_ARG(R.PC);
else
R.PC++ ;
}
static void bv(void)
{
if (OV) {
R.PC = M_RDOP_ARG(R.PC);
CLR(OV_FLAG);
}
else R.PC++ ;
}
void tms32010_device::blez()
{
if ( (int32_t)(m_ACC.d) <= 0 ) {
m_PC = M_RDOP_ARG(m_PC);
m_icount -= add_branch_cycle();
}
else
m_PC++ ;
}
static void bz(tms32010_state *cpustate)
{
if (cpustate->ACC.d == 0) {
cpustate->PC = M_RDOP_ARG(cpustate->PC);
cpustate->icount -= add_branch_cycle(cpustate);
}
else
cpustate->PC++ ;
}
static void bioz(tms32010_state *cpustate)
{
if (BIO_IN != CLEAR_LINE) {
cpustate->PC = M_RDOP_ARG(cpustate->PC);
cpustate->icount -= add_branch_cycle(cpustate);
}
else
cpustate->PC++ ;
}
void tms32010_device::bioz()
{
if (m_bio_in() != CLEAR_LINE) {
m_PC = M_RDOP_ARG(m_PC);
m_icount -= add_branch_cycle();
}
else
m_PC++ ;
}
void tms32010_device::blz()
{
if ( (INT32)(m_ACC.d) < 0 ) {
m_PC = M_RDOP_ARG(m_PC);
m_icount -= add_branch_cycle();
}
else
m_PC++ ;
}
static void call(void)
{
R.PC++ ;
R.STACK[0] = R.STACK[1];
R.STACK[1] = R.STACK[2];
R.STACK[2] = R.STACK[3];
R.STACK[3] = R.PC & ADDR_MASK;
R.PC = M_RDOP_ARG((R.PC-1)) & ADDR_MASK;
}
void tms32010_device::bz()
{
if (m_ACC.d == 0) {
m_PC = M_RDOP_ARG(m_PC);
m_icount -= add_branch_cycle();
}
else
m_PC++ ;
}
void tms32010_device::bv()
{
if (OV) {
CLR(OV_FLAG);
m_PC = M_RDOP_ARG(m_PC);
m_icount -= add_branch_cycle();
}
else
m_PC++ ;
}
static void bv(tms32010_state *cpustate)
{
if (OV) {
CLR(cpustate, OV_FLAG);
cpustate->PC = M_RDOP_ARG(cpustate->PC);
cpustate->icount -= add_branch_cycle(cpustate);
}
else
cpustate->PC++ ;
}
static void banz(void)
{
if (R.AR[ARP] & 0x01ff)
R.PC = M_RDOP_ARG(R.PC);
else
R.PC++ ;
R.ALU.w.l = R.AR[ARP];
R.ALU.w.l-- ;
R.AR[ARP] = (R.AR[ARP] & 0xfe00) | (R.ALU.w.l & 0x01ff);
}
static void banz(tms32010_state *cpustate)
{
if (cpustate->AR[ARP] & 0x01ff) {
cpustate->PC = M_RDOP_ARG(cpustate->PC);
cpustate->icount -= add_branch_cycle(cpustate);
}
else
cpustate->PC++ ;
cpustate->ALU.w.l = cpustate->AR[ARP];
cpustate->ALU.w.l-- ;
cpustate->AR[ARP] = (cpustate->AR[ARP] & 0xfe00) | (cpustate->ALU.w.l & 0x01ff);
}
void tms32010_device::banz()
{
if (m_AR[ARP] & 0x01ff) {
m_PC = M_RDOP_ARG(m_PC);
m_icount -= add_branch_cycle();
}
else
m_PC++ ;
m_ALU.w.l = m_AR[ARP];
m_ALU.w.l-- ;
m_AR[ARP] = (m_AR[ARP] & 0xfe00) | (m_ALU.w.l & 0x01ff);
}
//INLINE void trap( void )
static void trap( void )
{
if(errorlog)fprintf(errorlog, "M6808: illegal opcode: address %04X, op %02X\n",PC,(int) M_RDOP_ARG(PC)&0xFF);
TAKE_TRAP;
}
static void call(void)
{
R.PC++ ;
PUSH_STACK(R.PC);
R.PC = M_RDOP_ARG((R.PC - 1)) & addr_mask;
}
static void call(tms32010_state *cpustate)
{
cpustate->PC++ ;
PUSH_STACK(cpustate, cpustate->PC);
cpustate->PC = M_RDOP_ARG((cpustate->PC - 1));
}
static void br(void)
{
R.PC = M_RDOP_ARG(R.PC);
}
void tms32010_device::br()
{
m_PC = M_RDOP_ARG(m_PC);
}
//INLINE void illegal( void )
static void illegal( void )
{
logerror("M6808: illegal opcode: address %04X, op %02X\n",PC,(int) M_RDOP_ARG(PC)&0xFF);
}
void tms32010_device::call()
{
m_PC++ ;
PUSH_STACK(m_PC);
m_PC = M_RDOP_ARG((m_PC - 1));
}
static void br(tms32010_state *cpustate)
{
cpustate->PC = M_RDOP_ARG(cpustate->PC);
}
static void bnz(void)
{
if (R.ACC != 0) R.PC = M_RDOP_ARG(R.PC);
else R.PC++ ;
}
