Quoting Frank Adam to Adam Fitzpatrick:



FA>it actually returns the ascii code of the character it fails on in

FA>str1,  and negates it if *str2 > *str1. 

 

AF>That's quite interesting; presumably the asm source involves lodsb and

AF>cmp al,[es:di] or some such. Therefore the character from str1 is

AF>already in AL, so it doesn't require any instructions to produce the



FA>Yes, i have made an strcmp to return the char or negated char.

FA>I'm yet to find a use for it though :)



I know that feeling; I spent weeks getting my text editor to work with lines

up to 64k. :)

 

AF>return code. However, this wouldn't work with a character over the

AF>value of 127, because that would be interpreted as a negative number.



FA>Well, it does an unsigned comparison, so i presume that's correct.



I'm not sure what you mean here. I was referring to the return value of

strcmp. I've just checked and found out it's an int, so there's no

problem (because int is bigger than char, so an unsigned char will always

end up as a positive int).



... Avoid the 64k limit: get a Spectrum 16k!

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