Beispiel #1
0
 public Branch execute(Processor cpu) {
   Reg op1 = cpu.regs[op1Index];
   cpu.of = cpu.af = cpu.cf = false;
   cpu.flagResult = (op1.get32() & immd);
   cpu.flagStatus = SZP;
   return Branch.None;
 }
Beispiel #2
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 public Branch execute(Processor cpu) {
   Reg op1 = cpu.regs[op1Index];
   cpu.of = cpu.af = cpu.cf = false;
   cpu.flagResult = (byte) (op1.get8() ^ op2.get8(cpu));
   op1.set8((byte) cpu.flagResult);
   cpu.flagStatus = SZP;
   return Branch.None;
 }
Beispiel #3
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 public Branch execute(Processor cpu) {
   if (!cpu.of()) {
     int tmpEip = cpu.eip + jmp + blockLength;
     cpu.cs.checkAddress(tmpEip);
     cpu.eip = tmpEip;
     return Branch.T1;
   } else {
     cpu.eip += blockLength;
     return Branch.T2;
   }
 }
Beispiel #4
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 public Branch execute(Processor cpu) {
   int shift = 1 & 0x1f;
   shift %= 16 + 1;
   long val = 0xFFFF & op1.get16(cpu);
   val |= cpu.cf() ? 1L << 16 : 0;
   val = (val << shift) | (val >>> (16 + 1 - shift));
   op1.set16(cpu, (short) (int) val);
   boolean bit31 = (val & (1L << (16 - 1))) != 0;
   boolean bit32 = (val & (1L << (16))) != 0;
   cpu.cf(bit32);
   if (shift == 1) cpu.of(bit31 ^ bit32);
   return Branch.None;
 }
Beispiel #5
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 public Branch execute(Processor cpu) {
   int shift = immb & (32 - 1);
   int reg0 = op1.get32(cpu);
   int res = (reg0 >>> shift) | (reg0 << (32 - shift));
   op1.set32(cpu, res);
   boolean bit30 = (res & (1 << (32 - 2))) != 0;
   boolean bit31 = (res & (1 << (32 - 1))) != 0;
   if (shift > 0) {
     cpu.cf = bit31;
     cpu.of = bit30 ^ bit31;
     cpu.flagStatus &= NOFCF;
   }
   return Branch.None;
 }
Beispiel #6
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 public Branch execute(Processor cpu) {
   Reg op1 = cpu.regs[op1Index];
   int iop1 = (short) op1.get16();
   int iop2 = (short) cpu.r_eax.get16();
   int res32 = (((int) (short) iop1) * ((short) iop2));
   cpu.r_eax.set16((short) res32);
   cpu.r_edx.set16((short) (res32 >> 16));
   cpu.setOSZAPC_Logic16(res32);
   if (res32 != (short) res32) {
     cpu.of(true);
     cpu.cf(true);
   }
   return Branch.None;
 }
Beispiel #7
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 public Branch execute(Processor cpu) {
   int shift = cpu.r_cl.get8() & (16 - 1);
   int reg0 = 0xFFFF & op1.get16(cpu);
   int res = (reg0 << shift) | (reg0 >>> (16 - shift));
   op1.set16(cpu, (short) res);
   boolean bit0 = (res & 1) != 0;
   boolean bit31 = (res & (1 << (16 - 1))) != 0;
   if ((0x1F & cpu.r_cl.get8()) > 0) {
     cpu.cf = bit0;
     cpu.of = bit0 ^ bit31;
     cpu.flagStatus &= NOFCF;
   }
   return Branch.None;
 }
Beispiel #8
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 public Branch execute(Processor cpu) {
   int shift = cpu.r_cl.get8() & 0x1f;
   if (shift != 0) {
     if (shift <= 16) {
       cpu.flagStatus = OSZPC;
     } else {
       cpu.flagStatus = SZP;
       cpu.of = false;
       cpu.cf = false;
     }
     cpu.af = false;
     cpu.flagOp1 = op1.get32(cpu);
     cpu.flagOp2 = shift;
     cpu.flagResult = (cpu.flagOp1 << cpu.flagOp2);
     op1.set32(cpu, cpu.flagResult);
     cpu.flagIns = UCodes.SHL32;
   }
   return Branch.None;
 }
Beispiel #9
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 public Branch execute(Processor cpu) {
   cpu.of = cpu.af = cpu.cf = false;
   cpu.flagResult = (op1.get32(cpu) & immd);
   cpu.flagStatus = SZP;
   return Branch.None;
 }