Creating Query To Update A Field For Multiple Items

Looking to write an query that will update a field for multiple items, like 1,500.

something like:

UPDATE INMAST
SET FPRICE = 111.11

WHERE
INMAST.FPARTNO = 'xxx'

only issue I'm having is a need to do a JOIN because there's one more condition that must be met from another table, i've tried this:

SET FPRICE = 111.11
JOIN INVCUR
ON
(inmast.fpartno + inmast.frev)= (invcur.fcpartno + invcur.fcpartrev)

WHERE
INMAST.FPARTNO = 'NRE'
AND
invcur.flanycur = 'TRUE'

but that is giving me an error around the JOIN