comparison: lvm.js
lvm.js
- changeset 89
- a9cef9e01154
- parent 88
- 350a87c42b9b
- child 90
- 40edbc05fbb9
equal
deleted
inserted
replaced
| 88:350a87c42b9b | 89:a9cef9e01154 |
|---|---|
| 22 var OP_RETURN = 30; | 22 var OP_RETURN = 30; |
| 23 var OP_FORLOOP = 31; | 23 var OP_FORLOOP = 31; |
| 24 var OP_FORPREP = 32; | 24 var OP_FORPREP = 32; |
| 25 var OP_CLOSURE = 36; | 25 var OP_CLOSURE = 36; |
| 26 | 26 |
| 27 var debugMode = false; | 27 var debugMode = true; |
| 28 | 28 |
| 29 function LValue(vm, type, value) | 29 function LValue(vm, type, value) |
| 30 { | 30 { |
| 31 this.vm = vm; | 31 this.vm = vm; |
| 32 this.type = type||"nil"; | 32 this.type = type||"nil"; |
| 565 frame.reg[INS_A(instruction)] = RB; | 565 frame.reg[INS_A(instruction)] = RB; |
| 566 break; | 566 break; |
| 567 case OP_JMP: | 567 case OP_JMP: |
| 568 frame.pc+=INS_sBx(instruction); | 568 frame.pc+=INS_sBx(instruction); |
| 569 break; | 569 break; |
| 570 case OP_ADD: | |
| 571 var RB = RK(frame, INS_B(instruction)); | |
| 572 var RC = RK(frame, INS_C(instruction)); | |
| 573 frame.reg[INS_A(instruction)] = RB.add(RC); | |
| 574 break; | |
| 575 case OP_SUB: | |
| 576 var RB = frame.reg[INS_B(instruction)]; | |
| 577 var RC = frame.reg[INS_C(instruction)]; | |
| 578 frame.reg[INS_A(instruction)] = new LValue(this, "number", RB.value - RC.value); | |
| 579 break; | |
| 570 case OP_EQ: | 580 case OP_EQ: |
| 571 var A = INS_A(instruction); | 581 var A = INS_A(instruction); |
| 572 var RB = RK(frame, INS_B(instruction)); | 582 var RB = RK(frame, INS_B(instruction)); |
| 573 var RC = RK(frame, INS_C(instruction)); | 583 var RC = RK(frame, INS_C(instruction)); |
| 574 if(RB.equals(RC) != (A!=0)) | 584 if(RB.equals(RC) != (A!=0)) |
| 575 frame.pc++; | 585 frame.pc++; |
| 576 break; | 586 break; |
| 577 case OP_ADD: | 587 case OP_LT: |
| 588 var A = INS_A(instruction); | |
| 578 var RB = RK(frame, INS_B(instruction)); | 589 var RB = RK(frame, INS_B(instruction)); |
| 579 var RC = RK(frame, INS_C(instruction)); | 590 var RC = RK(frame, INS_C(instruction)); |
| 580 frame.reg[INS_A(instruction)] = RB.add(RC); | 591 if(RB.value < RC.value != (A!=0)) |
| 581 break; | |
| 582 case OP_SUB: | |
| 583 var RB = frame.reg[INS_B(instruction)]; | |
| 584 var RC = frame.reg[INS_C(instruction)]; | |
| 585 frame.reg[INS_A(instruction)] = new LValue(this, "number", RB.value - RC.value); | |
| 586 break; | |
| 587 case OP_LT: | |
| 588 var RB = RK(frame, INS_B(instruction)); | |
| 589 var RC = RK(frame, INS_C(instruction)); | |
| 590 if(RB.value < RC.value) | |
| 591 frame.pc++; | 592 frame.pc++; |
| 592 break; | 593 break; |
| 593 default: | 594 default: |
| 594 throw "Unhandled opcode: "+INS_OPCODE(instruction); | 595 throw "Unhandled opcode: "+INS_OPCODE(instruction); |
| 595 } | 596 } |
