示例#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;
 }
示例#2
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 public Branch execute(Processor cpu) {
   cpu.flagOp1 = cpu.r_eax.get32();
   cpu.flagOp2 = immd;
   cpu.flagResult = (cpu.flagOp1 - cpu.flagOp2);
   cpu.flagIns = UCodes.SUB32;
   cpu.flagStatus = OSZAPC;
   return Branch.None;
 }
示例#3
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 public Branch execute(Processor cpu) {
   cpu.flagOp1 = cpu.r_eax.get16();
   cpu.flagOp2 = immw;
   cpu.flagResult = (short) (cpu.flagOp1 - cpu.flagOp2);
   cpu.flagIns = UCodes.SUB16;
   cpu.flagStatus = OSZAPC;
   return Branch.None;
 }
示例#4
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 public Branch execute(Processor cpu) {
   cpu.flagOp1 = op1.get32(cpu);
   cpu.flagResult = (-cpu.flagOp1);
   op1.set32(cpu, cpu.flagResult);
   cpu.flagIns = UCodes.NEG32;
   cpu.flagStatus = OSZAPC;
   return Branch.None;
 }
示例#5
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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;
 }
示例#6
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 public Branch execute(Processor cpu) {
   cpu.flagOp1 = (byte) op1.get8(cpu);
   cpu.flagOp2 = (byte) immb;
   cpu.flagResult = (byte) (cpu.flagOp1 - cpu.flagOp2);
   cpu.flagIns = UCodes.SUB8;
   cpu.flagStatus = OSZAPC;
   return Branch.None;
 }
示例#7
0
文件: btr_Ew_Gw.java 项目: agimat/JPC
 public Branch execute(Processor cpu) {
   Reg op1 = cpu.regs[op1Index];
   Reg op2 = cpu.regs[op2Index];
   int bit = 1 << (op2.get16() & (16 - 1));
   cpu.cf = (0 != (op1.get16() & bit));
   cpu.flagStatus &= NCF;
   op1.set16((short) (op1.get16() & ~bit));
   return Branch.None;
 }
示例#8
0
 public Branch execute(Processor cpu) {
   cpu.flagOp1 = (short) op1.get16(cpu);
   cpu.flagOp2 = (short) immw;
   cpu.flagResult = (short) (cpu.flagOp1 - cpu.flagOp2);
   op1.set16(cpu, (short) cpu.flagResult);
   cpu.flagIns = UCodes.SUB16;
   cpu.flagStatus = OSZAPC;
   return Branch.None;
 }
示例#9
0
 public Branch execute(Processor cpu) {
   Reg op1 = cpu.regs[op1Index];
   cpu.flagOp1 = op1.get32();
   cpu.flagOp2 = op2.get32(cpu);
   cpu.flagResult = (cpu.flagOp1 - cpu.flagOp2);
   op1.set32(cpu.flagResult);
   cpu.flagIns = UCodes.SUB32;
   cpu.flagStatus = OSZAPC;
   return Branch.None;
 }
示例#10
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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;
 }
示例#11
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 public Branch execute(Processor cpu) {
   Reg op2 = cpu.regs[op2Index];
   int add = (cpu.cf() ? 1 : 0);
   cpu.flagOp1 = op1.get8(cpu);
   cpu.flagOp2 = op2.get8();
   cpu.flagResult = (byte) (cpu.flagOp1 - (cpu.flagOp2 + add));
   op1.set8(cpu, (byte) cpu.flagResult);
   cpu.flagIns = UCodes.SBB8;
   cpu.flagStatus = OSZAPC;
   return Branch.None;
 }
示例#12
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文件: add_Eb_Gb.java 项目: agimat/JPC
 public Branch execute(Processor cpu) {
   Reg op1 = cpu.regs[op1Index];
   Reg op2 = cpu.regs[op2Index];
   cpu.flagOp1 = (byte) op1.get8();
   cpu.flagOp2 = (byte) op2.get8();
   cpu.flagResult = (byte) (cpu.flagOp1 + cpu.flagOp2);
   op1.set8((byte) cpu.flagResult);
   cpu.flagIns = UCodes.ADD8;
   cpu.flagStatus = OSZAPC;
   return Branch.None;
 }
示例#13
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文件: adc_Gb_Eb.java 项目: agimat/JPC
 public Branch execute(Processor cpu) {
   Reg op1 = cpu.regs[op1Index];
   Reg op2 = cpu.regs[op2Index];
   boolean incf = cpu.cf();
   cpu.flagOp1 = op1.get8();
   cpu.flagOp2 = op2.get8();
   cpu.flagResult = (byte) (cpu.flagOp1 + cpu.flagOp2 + (incf ? 1 : 0));
   op1.set8((byte) cpu.flagResult);
   cpu.flagIns = UCodes.ADC8;
   cpu.flagStatus = OSZAPC;
   return Branch.None;
 }
示例#14
0
文件: adc_Ew_Ib.java 项目: agimat/JPC
 public Branch execute(Processor cpu) {
   Reg op1 = cpu.regs[op1Index];
   boolean incf =
       Processor.getCarryFlag(
           cpu.flagStatus, cpu.cf, cpu.flagOp1, cpu.flagOp2, cpu.flagResult, cpu.flagIns);
   cpu.flagOp1 = op1.get16();
   cpu.flagOp2 = immb;
   cpu.flagResult = (short) (cpu.flagOp1 + cpu.flagOp2 + (incf ? 1 : 0));
   op1.set16((short) cpu.flagResult);
   cpu.flagIns = UCodes.ADC16;
   cpu.flagStatus = OSZAPC;
   return Branch.None;
 }
示例#15
0
 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;
 }
示例#16
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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;
 }
示例#17
0
 public Branch execute(Processor cpu) {
   cpu.of = cpu.af = cpu.cf = false;
   cpu.flagResult = (op1.get32(cpu) & immd);
   cpu.flagStatus = SZP;
   return Branch.None;
 }