=> R0 = territory number, or -1 for current
R1 = pointer to string 1 (null terminated)
R2 = pointer to string 2 (null terminated)
R3 = flags:
bit 0: ignore case
bit 1: ignore accents
bit 2: interpret cardinals (5.22+)
bits 3-31: reserved (must be zero)
<= R0 = <0 if string1 < string2
=0 if string1 = string2
>0 if string1 > string2
R1-R3 preserved
This call compares strings in the given territory's alphabet.
Bit 2 of the flags is sometimes referred to as natural collation because it would consider "File10" > "File9", even though "1" < "9" in terms of ASCII code.
See PRM 3, page 834.
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