cpuemu_01.c

又一个游戏模拟器,著名ARC模拟器源码,包括多个平台

	SET_CFLG (lower <= upper ? reg < lower || reg > upper : reg > upper || reg < lower);
	if ((extra & 0x800) && GET_CFLG) { Exception(6,oldpc); goto endlabel32; }
}
}
}
}
m68k_incpc(6);
endlabel32: ;
return 6;
}
unsigned long op_fb_0(UINT32 opcode) /* CHK2 */
{
	(void)(opcode);
{
	unsigned int oldpc = m68k_getpc();
{
	INT16 extra = get_iword(2);
{
m68k_incpc(4);
{
	unsigned int tmppc = m68k_getpc();
	unsigned int dsta = get_disp_ea_020(tmppc, next_iword());
	{INT32 upper,lower,reg = regs.regs[(extra >> 12) & 15];
	lower=(INT32)(INT8)cpu_readmem24(dsta); upper = (INT32)(INT8)cpu_readmem24(dsta+1);
	if ((extra & 0x8000) == 0) reg = (INT32)(INT8)reg;
	SET_ZFLG (upper == reg || lower == reg);
	SET_CFLG (lower <= upper ? reg < lower || reg > upper : reg > upper || reg < lower);
	if ((extra & 0x800) && GET_CFLG) { Exception(6,oldpc); goto endlabel33; }
}
}
}
}
}
endlabel33: ;
return 7;
}
unsigned long op_100_0(UINT32 opcode) /* BTST */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT32 src = m68k_dreg(regs, srcreg);
{
	INT32 dst = m68k_dreg(regs, dstreg);
	src &= 31;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
}
}
}
m68k_incpc(2);
return 2;
}
unsigned long op_108_0(UINT32 opcode) /* MVPMR */
{
	UINT32 srcreg = (opcode & 7);
	UINT32 dstreg = (opcode >> 9) & 7;
{
	unsigned int memp = m68k_areg(regs, srcreg) + (INT32)(INT16)get_iword(2);
{
	UINT16 val = (cpu_readmem24(memp) << 8) + cpu_readmem24(memp + 2);
	m68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & ~0xffff) | ((val) & 0xffff);
}
}
m68k_incpc(4);
return 4;
}
unsigned long op_110_0(UINT32 opcode) /* BTST */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = m68k_areg(regs, dstreg);
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
}
}
}
}
m68k_incpc(2);
return 4;
}
unsigned long op_118_0(UINT32 opcode) /* BTST */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = m68k_areg(regs, dstreg);
{
	INT8 dst = cpu_readmem24(dsta);
	m68k_areg(regs, dstreg) += areg_byteinc[dstreg];
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
}
}
}
}
m68k_incpc(2);
return 4;
}
unsigned long op_120_0(UINT32 opcode) /* BTST */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = m68k_areg(regs, dstreg) - areg_byteinc[dstreg];
{
	INT8 dst = cpu_readmem24(dsta);
	m68k_areg (regs, dstreg) = dsta;
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
}
}
}
}
m68k_incpc(2);
return 5;
}
unsigned long op_128_0(UINT32 opcode) /* BTST */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = m68k_areg(regs, dstreg) + (INT32)(INT16)get_iword(2);
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
}
}
}
}
m68k_incpc(4);
return 6;
}
unsigned long op_130_0(UINT32 opcode) /* BTST */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
m68k_incpc(2);
{
	unsigned int dsta = get_disp_ea_020(m68k_areg(regs, dstreg), next_iword());
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
}
}
}
}
}
return 7;
}
unsigned long op_138_0(UINT32 opcode) /* BTST */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = (INT32)(INT16)get_iword(2);
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
}
}
}
}
m68k_incpc(4);
return 6;
}
unsigned long op_139_0(UINT32 opcode) /* BTST */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = get_ilong(2);
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
}
}
}
}
m68k_incpc(6);
return 8;
}
unsigned long op_13a_0(UINT32 opcode) /* BTST */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = m68k_getpc () + 2;
	dsta += (INT32)(INT16)get_iword(2);
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
}
}
}
}
m68k_incpc(4);
return 6;
}
unsigned long op_13b_0(UINT32 opcode) /* BTST */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
m68k_incpc(2);
{
	unsigned int tmppc = m68k_getpc();
	unsigned int dsta = get_disp_ea_020(tmppc, next_iword());
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
}
}
}
}
}
return 7;
}
unsigned long op_13c_0(UINT32 opcode) /* BTST */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	INT8 dst = get_ibyte(2);
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
}
}
}
m68k_incpc(4);
return 4;
}
unsigned long op_140_0(UINT32 opcode) /* BCHG */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT32 src = m68k_dreg(regs, srcreg);
{
	INT32 dst = m68k_dreg(regs, dstreg);
	src &= 31;
	dst ^= (1 << src);
	SET_ZFLG (((UINT32)dst & (1 << src)) >> src);
	m68k_dreg(regs, dstreg) = (dst);
}
}
}
m68k_incpc(2);
return 2;
}
unsigned long op_148_0(UINT32 opcode) /* MVPMR */
{
	UINT32 srcreg = (opcode & 7);
	UINT32 dstreg = (opcode >> 9) & 7;
{
	unsigned int memp = m68k_areg(regs, srcreg) + (INT32)(INT16)get_iword(2);
{
	UINT32 val = (cpu_readmem24(memp) << 24) + (cpu_readmem24(memp + 2) << 16)
              + (cpu_readmem24(memp + 4) << 8) + cpu_readmem24(memp + 6);
	m68k_dreg(regs, dstreg) = (val);
}
}
m68k_incpc(4);
return 4;
}
unsigned long op_150_0(UINT32 opcode) /* BCHG */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = m68k_areg(regs, dstreg);
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	dst ^= (1 << src);
	SET_ZFLG (((UINT32)dst & (1 << src)) >> src);
	cpu_writemem24(dsta,dst);
}
}
}
}
m68k_incpc(2);
return 6;
}
unsigned long op_158_0(UINT32 opcode) /* BCHG */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = m68k_areg(regs, dstreg);
{
	INT8 dst = cpu_readmem24(dsta);
	m68k_areg(regs, dstreg) += areg_byteinc[dstreg];
	src &= 7;
	dst ^= (1 << src);
	SET_ZFLG (((UINT32)dst & (1 << src)) >> src);
	cpu_writemem24(dsta,dst);
}
}
}
}
m68k_incpc(2);
return 6;
}
unsigned long op_160_0(UINT32 opcode) /* BCHG */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = m68k_areg(regs, dstreg) - areg_byteinc[dstreg];
{
	INT8 dst = cpu_readmem24(dsta);
	m68k_areg (regs, dstreg) = dsta;
	src &= 7;
	dst ^= (1 << src);
	SET_ZFLG (((UINT32)dst & (1 << src)) >> src);
	cpu_writemem24(dsta,dst);
}
}
}
}
m68k_incpc(2);
return 7;
}
unsigned long op_168_0(UINT32 opcode) /* BCHG */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = m68k_areg(regs, dstreg) + (INT32)(INT16)get_iword(2);
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	dst ^= (1 << src);
	SET_ZFLG (((UINT32)dst & (1 << src)) >> src);
	cpu_writemem24(dsta,dst);
}
}
}
}
m68k_incpc(4);
return 8;
}
unsigned long op_170_0(UINT32 opcode) /* BCHG */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
m68k_incpc(2);
{
	unsigned int dsta = get_disp_ea_020(m68k_areg(regs, dstreg), next_iword());
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	dst ^= (1 << src);
	SET_ZFLG (((UINT32)dst & (1 << src)) >> src);
	cpu_writemem24(dsta,dst);
}
}
}
}
}
return 9;
}
unsigned long op_178_0(UINT32 opcode) /* BCHG */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = (INT32)(INT16)get_iword(2);
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	dst ^= (1 << src);
	SET_ZFLG (((UINT32)dst & (1 << src)) >> src);
	cpu_writemem24(dsta,dst);
}
}
}
}
m68k_incpc(4);
return 8;
}
unsigned long op_179_0(UINT32 opcode) /* BCHG */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = get_ilong(2);
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	dst ^= (1 << src);
	SET_ZFLG (((UINT32)dst & (1 << src)) >> src);
	cpu_writemem24(dsta,dst);
}
}
}
}
m68k_incpc(6);
return 10;
}
unsigned long op_17a_0(UINT32 opcode) /* BCHG */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = m68k_getpc () + 2;
	dsta += (INT32)(INT16)get_iword(2);
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	dst ^= (1 << src);
	SET_ZFLG (((UINT32)dst & (1 << src)) >> src);
	cpu_writemem24(dsta,dst);
}
}
}
}
m68k_incpc(4);
return 8;
}
unsigned long op_17b_0(UINT32 opcode) /* BCHG */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
m68k_incpc(2);
{
	unsigned int tmppc = m68k_getpc();
	unsigned int dsta = get_disp_ea_020(tmppc, next_iword());
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	dst ^= (1 << src);
	SET_ZFLG (((UINT32)dst & (1 << src)) >> src);
	cpu_writemem24(dsta,dst);
}
}
}
}
}
return 9;
}
unsigned long op_180_0(UINT32 opcode) /* BCLR */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT32 src = m68k_dreg(regs, srcreg);
{
	INT32 dst = m68k_dreg(regs, dstreg);
	src &= 31;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
	dst &= ~(1 << src);
	m68k_dreg(regs, dstreg) = (dst);
}
}
}
m68k_incpc(2);
return 2;
}
unsigned long op_188_0(UINT32 opcode) /* MVPRM */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT16 src = m68k_dreg(regs, srcreg);
	unsigned int memp = m68k_areg(regs, dstreg) + (INT32)(INT16)get_iword(2);
	cpu_writemem24(memp, src >> 8); cpu_writemem24(memp + 2, src);
}
}
m68k_incpc(4);
return 4;
}
unsigned long op_190_0(UINT32 opcode) /* BCLR */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = m68k_areg(regs, dstreg);
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
	dst &= ~(1 << src);
	cpu_writemem24(dsta,dst);
}
}
}
}
m68k_incpc(2);
return 6;
}
unsigned long op_198_0(UINT32 opcode) /* BCLR */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = m68k_areg(regs, dstreg);
{
	INT8 dst = cpu_readmem24(dsta);
	m68k_areg(regs, dstreg) += areg_byteinc[dstreg];
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
	dst &= ~(1 << src);
	cpu_writemem24(dsta,dst);
}
}
}
}
m68k_incpc(2);
return 6;
}
unsigned long op_1a0_0(UINT32 opcode) /* BCLR */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = m68k_areg(regs, dstreg) - areg_byteinc[dstreg];
{
	INT8 dst = cpu_readmem24(dsta);
	m68k_areg (regs, dstreg) = dsta;
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
	dst &= ~(1 << src);
	cpu_writemem24(dsta,dst);
}
}
}
}
m68k_incpc(2);
return 7;
}
unsigned long op_1a8_0(UINT32 opcode) /* BCLR */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = m68k_areg(regs, dstreg) + (INT32)(INT16)get_iword(2);
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
	dst &= ~(1 << src);
	cpu_writemem24(dsta,dst);
}
}
}
}
m68k_incpc(4);
return 8;
}
unsigned long op_1b0_0(UINT32 opcode) /* BCLR */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
	UINT32 dstreg = opcode & 7;
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
m68k_incpc(2);
{
	unsigned int dsta = get_disp_ea_020(m68k_areg(regs, dstreg), next_iword());
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
	dst &= ~(1 << src);
	cpu_writemem24(dsta,dst);
}
}
}
}
}
return 9;
}
unsigned long op_1b8_0(UINT32 opcode) /* BCLR */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = (INT32)(INT16)get_iword(2);
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
	dst &= ~(1 << src);
	cpu_writemem24(dsta,dst);
}
}
}
}
m68k_incpc(4);
return 8;
}
unsigned long op_1b9_0(UINT32 opcode) /* BCLR */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = get_ilong(2);
{
	INT8 dst = cpu_readmem24(dsta);
	src &= 7;
	SET_ZFLG (1 ^ ((dst >> src) & 1));
	dst &= ~(1 << src);
	cpu_writemem24(dsta,dst);
}
}
}
}
m68k_incpc(6);
return 10;
}
unsigned long op_1ba_0(UINT32 opcode) /* BCLR */
{
	UINT32 srcreg = ((opcode >> 9) & 7);
{
{
	INT8 src = m68k_dreg(regs, srcreg);
{
	unsigned int dsta = m68k_getpc () + 2;
	dsta += (INT32)(INT16)get_iword(2);
{
	INT8 dst = cpu_readmem24(dsta);