Question about comparestr and xor="

[Arnold]

Hi Charles,

is comparestr a valid function and can it be used only in assembler? I tried this code:

a="abc"
b="abc"
c="123"
print comparestr(a,b)
print comparestr(a,c)

I get some values, but I do not know what they mean. And everytime I run this snippet I get different values.

In the Oxygen help file there is listed xor=" as an operator. Is the quote necessary in some cases?

Roland

[Charles Pegge]

Hi Roland,

Yes, the quote mark looks like a typo. xor= works just like the other assignment operators

comparestr is the string comparator, and rarely used directly. It sets the CPU zero and sign flags.

Code: OxygenBasic

1. a="abc"
2. b="abc"
3. c="123"
4. sys cm
5. comparestr(a,b)
6. (
7.   jnz exit
8.   print "equal"
9.   jmp fwd ncompare
10. )
11. (
12.   jg exit
13.   print "less"
14.   jmp fwd ncompare
15. )
16. (
17.   jl exit
18.   print "greater"
19.   jmp fwd ncompare
20. )
21. .ncompare
22.