guiwong / vv_apha Goto Github PK

This is a personnal project for learning low level programming.

The goal is to implement a programming language using python and assembly.

I'm taking inspiration from Porth (https://gitlab.com/tsoding/porth) ,

but vV is already different in implementation and in planning.

Update 0.0.4: 
		Global and Local Variables, reworked functions

Planned Updates:

0.0.?: 	The string Update

	-add a 2nd stack for strings
		-new stack pointer: r14 (string stack pointer)
	-8 new string or io related keywords
	
	-string LIFO:	byte 1 hold size (max 255 size string on stack)
			string follows at addr +1, +2 ...
			push / pop using size and string SP to align strings

Current Implementation:

vV (pronounced in french "Double V", the name of the letter W . Could be called "double-u" or "double-v") is a stack based programming language.

For now, it only has: - basic operations ( + - mul div < > ! & ^ % ) - if , else , end , do , while , break for flow control - numeric and ascii input/output - basic Error Managment

Now(0.0.4.1) Having

-n dimention Array(only global for now)
-Ref Type (a kind of pointer)
- basic function (no arg passing)

-arg functions

stack is in .bss for now, pointed to by r15

rsp is used as return stack

	-