AbstractVM is a machine that uses a stack to compute simple arithmetic expressions. These arithmetic expressions are provided to the machine as basic assembly programs.
As for any assembly language, the language of AbstractVM is composed of a series of instructions, with one instruction per line. However, AbstractVM’s assembly language has a limited type system, which is a major difference from other real world assembly languages.
Just execute the make command to launch the compilation.
Some tests are provided, run sh run_error_tests.sh and magic happens.
Abstract-VM is a 42 school project.
| Instruction | Details |
|---|---|
| push value | Pushes the value v at the top of the stack. The value must have one of the following form:
|
| pop | Unstacks the value from the top of the stack. |
| dump | Displays each value of the stack, from the most recent one to the oldest one. |
| assert value | Asserts that the value at the top of the stack is equal to the one passed as parameter for this instruction. |
| add | Unstacks the first two values on the stack, adds them together and stacks the result. |
| sub | Unstacks the first two values on the stack, subtracts them, then stacks the result. |
| mul | Unstacks the first two values on the stack, multiplies them, then stacks the result. |
| div | Unstacks the first two values on the stack, divides them, then stacks the result. |
| mod | Unstacks the first two values on the stack, calculates the modulus, then stacks the result. |
| Asserts that the value at the top of the stack is an 8-bit integer. (If not, see the instruction assert), then interprets it as an ASCII value and displays the corresponding character on the standard output. | |
| exit | Terminate the execution of the current program. |
| Comments | Comments start with a ’;’ and finish with a newline. |
- Color output
- Doesn't stop at the first error met
- Advanced parsing: regex are used
- Сustom exceptions, which are inherited from a more specific class than std::exception
- 5 Instructions
| Instruction | Details |
|---|---|
| sum | Summarizes the values on the stack and prints the result. |
| avg | Displays average value of the stack. |
| sort | Sorts the stack, from minimum to maximum. |
| min | Displays minimum value of the stack. |
| max | Displays maximum value of the stack. |
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