?? cpuemu_01.c
字號:
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);
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