cpuemu_03.c

十七种模拟器源代码 非常有用的作课程设计不可缺少的

	if (GET_XFLG) val |= 1;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry >> 15);
	COPY_CARRY;
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(2);
return 6;
}
unsigned long op_e5d8_0(UINT32 opcode) /* ROXLW */
{
	UINT32 srcreg = (opcode & 7);
{
{
	unsigned int dataa = m68k_areg(regs, srcreg);
{
	INT16 data = cpu_readmem24_word(dataa);
	m68k_areg(regs, srcreg) += 2;
{
	UINT16 val = data;
	UINT32 carry = val & 0x8000;
	val <<= 1;
	if (GET_XFLG) val |= 1;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry >> 15);
	COPY_CARRY;
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(2);
return 6;
}
unsigned long op_e5e0_0(UINT32 opcode) /* ROXLW */
{
	UINT32 srcreg = (opcode & 7);
{
{
	unsigned int dataa = m68k_areg(regs, srcreg) - 2;
{
	INT16 data = cpu_readmem24_word(dataa);
	m68k_areg (regs, srcreg) = dataa;
{
	UINT16 val = data;
	UINT32 carry = val & 0x8000;
	val <<= 1;
	if (GET_XFLG) val |= 1;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry >> 15);
	COPY_CARRY;
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(2);
return 7;
}
unsigned long op_e5e8_0(UINT32 opcode) /* ROXLW */
{
	UINT32 srcreg = (opcode & 7);
{
{
	unsigned int dataa = m68k_areg(regs, srcreg) + (INT32)(INT16)get_iword(2);
{
	INT16 data = cpu_readmem24_word(dataa);
{
	UINT16 val = data;
	UINT32 carry = val & 0x8000;
	val <<= 1;
	if (GET_XFLG) val |= 1;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry >> 15);
	COPY_CARRY;
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(4);
return 8;
}
unsigned long op_e5f0_0(UINT32 opcode) /* ROXLW */
{
	UINT32 srcreg = (opcode & 7);
{
{
m68k_incpc(2);
{
	unsigned int dataa = get_disp_ea_020(m68k_areg(regs, srcreg), next_iword());
{
	INT16 data = cpu_readmem24_word(dataa);
{
	UINT16 val = data;
	UINT32 carry = val & 0x8000;
	val <<= 1;
	if (GET_XFLG) val |= 1;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry >> 15);
	COPY_CARRY;
	cpu_writemem24_word(dataa,val);
}
}
}
}
}
return 9;
}
unsigned long op_e5f8_0(UINT32 opcode) /* ROXLW */
{
{
{
	unsigned int dataa = (INT32)(INT16)get_iword(2);
{
	INT16 data = cpu_readmem24_word(dataa);
{
	UINT16 val = data;
	UINT32 carry = val & 0x8000;
	val <<= 1;
	if (GET_XFLG) val |= 1;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry >> 15);
	COPY_CARRY;
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(4);
return 8;
}
unsigned long op_e5f9_0(UINT32 opcode) /* ROXLW */
{
{
{
	unsigned int dataa = get_ilong(2);
{
	INT16 data = cpu_readmem24_word(dataa);
{
	UINT16 val = data;
	UINT32 carry = val & 0x8000;
	val <<= 1;
	if (GET_XFLG) val |= 1;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry >> 15);
	COPY_CARRY;
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(6);
return 10;
}
unsigned long op_e6d0_0(UINT32 opcode) /* RORW */
{
	UINT32 srcreg = (opcode & 7);
{
{
	unsigned int dataa = m68k_areg(regs, srcreg);
{
	INT16 data = cpu_readmem24_word(dataa);
{
	UINT16 val = data;
	UINT32 carry = val & 1;
	val >>= 1;
	if (carry) val |= 0x8000;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry);
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(2);
return 6;
}
unsigned long op_e6d8_0(UINT32 opcode) /* RORW */
{
	UINT32 srcreg = (opcode & 7);
{
{
	unsigned int dataa = m68k_areg(regs, srcreg);
{
	INT16 data = cpu_readmem24_word(dataa);
	m68k_areg(regs, srcreg) += 2;
{
	UINT16 val = data;
	UINT32 carry = val & 1;
	val >>= 1;
	if (carry) val |= 0x8000;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry);
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(2);
return 6;
}
unsigned long op_e6e0_0(UINT32 opcode) /* RORW */
{
	UINT32 srcreg = (opcode & 7);
{
{
	unsigned int dataa = m68k_areg(regs, srcreg) - 2;
{
	INT16 data = cpu_readmem24_word(dataa);
	m68k_areg (regs, srcreg) = dataa;
{
	UINT16 val = data;
	UINT32 carry = val & 1;
	val >>= 1;
	if (carry) val |= 0x8000;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry);
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(2);
return 7;
}
unsigned long op_e6e8_0(UINT32 opcode) /* RORW */
{
	UINT32 srcreg = (opcode & 7);
{
{
	unsigned int dataa = m68k_areg(regs, srcreg) + (INT32)(INT16)get_iword(2);
{
	INT16 data = cpu_readmem24_word(dataa);
{
	UINT16 val = data;
	UINT32 carry = val & 1;
	val >>= 1;
	if (carry) val |= 0x8000;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry);
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(4);
return 8;
}
unsigned long op_e6f0_0(UINT32 opcode) /* RORW */
{
	UINT32 srcreg = (opcode & 7);
{
{
m68k_incpc(2);
{
	unsigned int dataa = get_disp_ea_020(m68k_areg(regs, srcreg), next_iword());
{
	INT16 data = cpu_readmem24_word(dataa);
{
	UINT16 val = data;
	UINT32 carry = val & 1;
	val >>= 1;
	if (carry) val |= 0x8000;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry);
	cpu_writemem24_word(dataa,val);
}
}
}
}
}
return 9;
}
unsigned long op_e6f8_0(UINT32 opcode) /* RORW */
{
{
{
	unsigned int dataa = (INT32)(INT16)get_iword(2);
{
	INT16 data = cpu_readmem24_word(dataa);
{
	UINT16 val = data;
	UINT32 carry = val & 1;
	val >>= 1;
	if (carry) val |= 0x8000;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry);
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(4);
return 8;
}
unsigned long op_e6f9_0(UINT32 opcode) /* RORW */
{
{
{
	unsigned int dataa = get_ilong(2);
{
	INT16 data = cpu_readmem24_word(dataa);
{
	UINT16 val = data;
	UINT32 carry = val & 1;
	val >>= 1;
	if (carry) val |= 0x8000;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry);
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(6);
return 10;
}
unsigned long op_e7d0_0(UINT32 opcode) /* ROLW */
{
	UINT32 srcreg = (opcode & 7);
{
{
	unsigned int dataa = m68k_areg(regs, srcreg);
{
	INT16 data = cpu_readmem24_word(dataa);
{
	UINT16 val = data;
	UINT32 carry = val & 0x8000;
	val <<= 1;
	if (carry)  val |= 1;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry >> 15);
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(2);
return 6;
}
unsigned long op_e7d8_0(UINT32 opcode) /* ROLW */
{
	UINT32 srcreg = (opcode & 7);
{
{
	unsigned int dataa = m68k_areg(regs, srcreg);
{
	INT16 data = cpu_readmem24_word(dataa);
	m68k_areg(regs, srcreg) += 2;
{
	UINT16 val = data;
	UINT32 carry = val & 0x8000;
	val <<= 1;
	if (carry)  val |= 1;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry >> 15);
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(2);
return 6;
}
unsigned long op_e7e0_0(UINT32 opcode) /* ROLW */
{
	UINT32 srcreg = (opcode & 7);
{
{
	unsigned int dataa = m68k_areg(regs, srcreg) - 2;
{
	INT16 data = cpu_readmem24_word(dataa);
	m68k_areg (regs, srcreg) = dataa;
{
	UINT16 val = data;
	UINT32 carry = val & 0x8000;
	val <<= 1;
	if (carry)  val |= 1;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry >> 15);
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(2);
return 7;
}
unsigned long op_e7e8_0(UINT32 opcode) /* ROLW */
{
	UINT32 srcreg = (opcode & 7);
{
{
	unsigned int dataa = m68k_areg(regs, srcreg) + (INT32)(INT16)get_iword(2);
{
	INT16 data = cpu_readmem24_word(dataa);
{
	UINT16 val = data;
	UINT32 carry = val & 0x8000;
	val <<= 1;
	if (carry)  val |= 1;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry >> 15);
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(4);
return 8;
}
unsigned long op_e7f0_0(UINT32 opcode) /* ROLW */
{
	UINT32 srcreg = (opcode & 7);
{
{
m68k_incpc(2);
{
	unsigned int dataa = get_disp_ea_020(m68k_areg(regs, srcreg), next_iword());
{
	INT16 data = cpu_readmem24_word(dataa);
{
	UINT16 val = data;
	UINT32 carry = val & 0x8000;
	val <<= 1;
	if (carry)  val |= 1;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry >> 15);
	cpu_writemem24_word(dataa,val);
}
}
}
}
}
return 9;
}
unsigned long op_e7f8_0(UINT32 opcode) /* ROLW */
{
{
{
	unsigned int dataa = (INT32)(INT16)get_iword(2);
{
	INT16 data = cpu_readmem24_word(dataa);
{
	UINT16 val = data;
	UINT32 carry = val & 0x8000;
	val <<= 1;
	if (carry)  val |= 1;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry >> 15);
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(4);
return 8;
}
unsigned long op_e7f9_0(UINT32 opcode) /* ROLW */
{
{
{
	unsigned int dataa = get_ilong(2);
{
	INT16 data = cpu_readmem24_word(dataa);
{
	UINT16 val = data;
	UINT32 carry = val & 0x8000;
	val <<= 1;
	if (carry)  val |= 1;
	CLEAR_CZNV;
	SET_ZFLG (((INT16)(val)) == 0);
	SET_NFLG (((INT16)(val)) < 0);
SET_CFLG (carry >> 15);
	cpu_writemem24_word(dataa,val);
}
}
}
}
m68k_incpc(6);
return 10;
}
unsigned long op_e8c0_0(UINT32 opcode) /* BFTST */
{
	UINT32 dstreg = opcode & 7;
{
{
	INT16 extra = get_iword(2);
{