Entry
R0 = Pointer to pathname
Exit
R0 = Pointer to leafname
Finds the last occurence of . in the string pointed to by R0, and returns a pointer to the next character. eg. given scsi::HardDisc.$.first.second.last it will return a pointer to last. This can be useful for both extracting the leaf name, and for determining what directory the file is in (by poking a zero to (R0-1) - eg. MOV R2,#0 STRB R2,[R0,#-1] ).
Provided by Misc
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