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ifndef included_xtan
define included_xtan
include "../common/pushpop.asm"
include "xdiv.asm"
include "xcos.asm"
include "xsin.asm"
tan_x=xOP1+90
tan_y=xOP1+80
xtan:
call pushpop
push bc
ld bc,tan_x
call xcos
ld d,b
ld e,c
ld bc,tan_y
call xsin
ld h,b
ld l,c
pop bc
jp xdiv
;#undefine tan_x
;#undefine tan_y
endif