Constructor
new VM(stdin, stdout)
Virtual Machine for Simulator to Run
Parameters:
| Name |
Type |
Description |
stdin |
FileStream
|
Standard Input for Virtual Machine |
stdout |
FileStream
|
Standard Output for Virtual Machine |
Properties:
| Name |
Type |
Description |
register |
Array
|
Register File for Virtual Machine |
AddressTable |
Array
|
Address Lookup Table |
InstructionSet |
Array
|
Parse Tree Generated by Parse |
fenceSize |
Number
|
Fence Register for Access Limitation |
ProgramCounter |
Number
|
Next Instruction Index |
shouldRun |
boolean
|
Execution State (Running | Halt) |
- Source:
Methods
encodeFromRegister(register, i)
Fetch Encoding Information from Register File
Parameters:
| Name |
Type |
Description |
register |
string
|
Name of The Register |
i |
Number
|
Index of The Instruction |
- Source:
execute(InstructionSet, ProgramCounter)
Execution Module for Virtual Machine
Parameters:
| Name |
Type |
Description |
InstructionSet |
Array
|
Set of Instructions to be Executed |
ProgramCounter |
Number
|
Index of Next Instruction |
- Source:
loadOnRegister(register, value, i)
Load Data Into Register File
Parameters:
| Name |
Type |
Description |
register |
string
|
Name of The Register |
value |
any
|
Value to be Put |
i |
Number
|
Index of The Instruction |
- Source:
memory(target, value, i)
Store Data Into Main Memory
Parameters:
| Name |
Type |
Description |
target |
string
|
Name of The Taget Address |
value |
any
|
Value to be Put |
i |
Number
|
Index of The Instruction |
- Source:
run(SymbolTable, SyntaxTree)
Invocation Method to ENtry POint of The Program
Parameters:
| Name |
Type |
Description |
SymbolTable |
Array
|
Address Lookup Table |
SyntaxTree |
Array
|
Abstract Syntax Tree |
- Source:
updatePC(address)
Modify Program Counter in Case of Branching
Parameters:
| Name |
Type |
Description |
address |
Number
|
Address of The Resolved Branch |
- Source:
valueFromLabel(label, i)
Load Data From Main Memory
Parameters:
| Name |
Type |
Description |
label |
string
|
Name of The Address Label |
i |
Number
|
Index of The Instruction |
- Source:
valueFromRegister(register, i)
Fetch Data From Register File
Parameters:
| Name |
Type |
Description |
register |
string
|
Name of The Register |
i |
Number
|
Index of The Instruction |
- Source: