Bug or not a bug?

flat assembler
Message board for the users of flat assembler.

Index > Compiler Internals > Bug or not a bug?

Author

Thread

CandyMan

Joined: 04 Sep 2009
Posts: 414
Location: film "CandyMan" directed through Bernard Rose OR Candy Shop

CandyMan 30 Oct 2014, 17:43

Code:

Fill rb (($ mod $200)>0)*128 ; invalid argument

_________________
smaller is better

30 Oct 2014, 17:43

l_inc

Joined: 23 Oct 2009
Posts: 881

l_inc 30 Oct 2014, 22:19

CandyMan
Even though the term of a logical operator is a bit mixed up in the manual, fasm neither casts logical values into numeric values nor it provides operators able to take logical arguments and return a numeric value. You can't use a logical value anywhere except as an argument of if/else if/while/assert or as an argument of one of the 3 logical operators: ~, &, |. In particular you can't multiply a logical value by something.

_________________
Faith is a superposition of knowledge and fallacy

30 Oct 2014, 22:19

CandyMan

Joined: 04 Sep 2009
Posts: 414
Location: film "CandyMan" directed through Bernard Rose OR Candy Shop

CandyMan 31 Oct 2014, 15:02

Thank you.

_________________
smaller is better

31 Oct 2014, 15:02

baldr

Joined: 19 Mar 2008
Posts: 1651

baldr 01 Nov 2014, 06:34

CandyMan,

To test for non-zero value you may use x or -x bithack:

Code:

rb (($ mod $200) or -($ mod $200)) shr 1 and 128

01 Nov 2014, 06:34

< Last Thread | Next Thread >

Forum Rules:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum