Warning
This project has been archived because i just dont know what to do with it anymore. The way i made the whole thing is wrong and i just cant add any new features to it. Also i included tenth_vm folder that contains tenth implementation in C. Maybe in the future i'll change my mind and start working on tenth_vm again but idk about that.
This project is using termcolor library.
Install:
- cmake
- GCC if you are on Linux
- Visual Studio Build Tools if you are on Windows
$ mkdir build
$ cd build
$ cmake ../On Linux:
$ makeOn Windows (Developer Command Prompt):
$ msbuild tenth.slnTo push a number onto the stack, you need to type:
10
If you want to add some numbers:
10 15 +
If you want to print the result and pop the top of the stack:
10 15 + .
To dump value from the stack
420 . (420 gets dumped)
420 69 . (69 gets dumped)
To show stack:
10 25 42 88 90 show
For example, this expression: 2 + 2 * 2 can be written like this:
2 2 * 2 + .
or some other expression like 2 - 2 * 2 - 2 can be written like this:
-2 2 * 2 -2 - .
To divide a number:
1.0 2.0 / .
To compare two numbers:
5 is less than 10
5 10 < .
This is going to be true, so the value thats going to be pushed onto stack is -1 representing true.
10 is greater than 50
10 50 > .
This is going to be false, so the value that's going to be pushed onto stack is 0 representing false.
50 is equal to 50
50 50 = .
To duplicate top value onto stack, you need to have some other value onto stack to be able to duplicate it:
15 dup show
the result will be
15 15
Droping is almost same as dumping, but you are not printing the value that you've poped from the top of the stack. To drop a value you need to have one already:
10 show drop show
First we are going to push 10 and show the stack. Second we are going to call opcode drop, and then we are going to show stack again.
Result is going to be:
10
(empty)
In order to swap two values, we need to push them to stack.
10 20 show swap show
Result is going to be:
10 20
20 10
Over is not as obvious as the other opcodes. It duplicates second element to the top of the stack. Like this:
420 69 56 show
over show
Result is:
420 69 56
420 69 56 69
Rot opcode is going to rotate first three elements onto stack. The third element from the top of the stack gets moved to the top of the stack, pushing the other two elements down.
1 2 3 show
rot show
Result:
2 3 1
Emit opcode is going to print ascii character. Like this:
65 emit
is going to print 'a'.
Exit is opcode that is going to terminate program with exit code. Like this:
0 exit
Result is 4
To increment top of the stack:
15 inc .
If you want do decrement:
15 dec .
"Hello, World!" .
This is going to dump Hello, World! in the console.
To print something that is on the stack, you need to do this:
"Hello, " 123 " " 123.5 " World\n" print
This is going to print Hello, 123 123.5 World.
Licensed under the MIT License, see the LICENSE file.
See the termcolor license.