Re: Tales of mc

[Benjamin Kowarsch]

On Sun, 11 Sept 2022 at 11:02, john o goyo <jog37@riddermarkfarm.ca> wrote:

I know that mc is a boot-strapping tool that does not translate all of Modula-2. 

How much does it understand?

[...] I found that SHIFT() is not known to it.

You could use my portable bit operations library.

It has no dependencies, is portable across PIM and ISO dialects, and all Modula-2 compilers.

It provides arithmetic and logical shifting as well as left shifting through carry.

CARDINAL bit operations

https://github.com/m2sf/m2bsk/blob/master/src/lib/CardBitOps.def

https://github.com/m2sf/m2bsk/blob/master/src/lib/imp/CardBitOps.mod

INTEGER bit operations

https://github.com/m2sf/m2bsk/blob/master/src/lib/IntBitOps.def

https://github.com/m2sf/m2bsk/blob/master/src/lib/imp/IntBitOps.mod

LONGINT bit operations

https://github.com/m2sf/m2bsk/blob/master/src/lib/LongIntBitOps.def

https://github.com/m2sf/m2bsk/blob/master/src/lib/imp/LongIntBitOps.mod

I have also implemented a portable 64-bit cardinal type along with bit operations on it.

https://github.com/m2sf/m2bsk/tree/master/src/lib/CARD64

The CARD64 library works with the following memory models:

(a) 16-bit cardinal/32-bit integer

(b) 32-bit cardinal/32-bit integer

(c) 32-bit cardinal/64-bit integer

regards

benjamin