wlvm

Virtual machine with associated language written in Rust

Installation

cargo install wlvm

Virtual Machine datasheet

Registers

There are 6 multi purposes registers, marked from a to f.

There are 4 special registers :

• sp : The stack pointer
• ip : The instruction pointer
• st : The stack top value
• eq : The result of the last test performed

Instruction Set

• psh <integer> : Pushes an integer onto the stack
• add <register_a> <register_b> : Adds the content of register_b to register_a
• sub <register_a> <register_b> : Substracts the content of register_b to register_a
• mul <register_a> <register_b> : Multiplies the content of register_b to register_a
• div <register_a> <register_b> : Divides the content of register_a by register_b
• pop : Pops the stack
• set <register> <integer> : Sets register's value to the specified integer
• mov <register_a> <register_b> : Copies content of register_b in register_a
• dst : Prints the stack
• drg <register> : Prints the content of the specified register
• peek : Prints the value of the st register
• hlt : Stops the program
• tee <register_a> <register_b> : Test if register_a == register_b
• tne <register_a> <register_b> : Test if register_a != register_b
• tll <register_a> <register_b> : Test if register_a < register_b
• tmm <register_a> <register_b> : Test if register_a > register_b
• tel <register_a> <register_b> : Test if register_a <= register_b
• tem <register_a> <register_b> : Test if register_a >= register_b
• jmp <instruction> : Jump to <instruction> if Eq register is true
• prt <register> : Prints the character corresponding to register value
• inc <register> : Increments the register's value
• dec <register> : Decrements the register's value
• dmp : Dumps the stack and the registers