A stack.

It started as a software data stack. Because I need it. It has become a hardware control stack.

Yann Guidon / YGDES

Following Follow project

Liked Like project

Become a Hackaday.io member

Just one more thing

To make the experience fit your profile, pick a username and tell us what interests you.

OK, I'm done! Skip

Similar projects worth following

61 views

0 comments

4 followers

2 likes

Description
Details
Files 0
Components 0
Logs 1
- View all
Instructions 0
Discussion 0

View Gallery

Description

C's standard ABI is ridiculous.

Details

Work in progress.

This project describes a part of an ABI that looks like old-school Pascal, except that a hardware stack (or something emulating it) is much safer and faster. It does not need to change most high-level source code but compilers, libraries, linkers, processors etc. must account for:

a software-defined data stack (to store the function's frame containing local variables)
a hardware control-only stack (for call/return, looping or try/throw/catch for example).

The software data stack is a very old trick so nothing to say about it. The hardware stack however pulls a few tricks from its sleeves.

Implementations considered for #YGREC32 and #F-CPU.

Stay tuned.

Project Logs

Collapse

First article
Yann Guidon / YGDES • 05/08/2024 at 00:52 • 0 comments

A first article is now available in the French new stands in May-June 2024:
It's only the first part of a trilogy that explains many of the practical shortcomings of the C-style ABI that makes our lives so miserable. Beware of the C hacks...