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FarCall_hl::
; Call a:hl.
; Preserves other registers.
ld [wTempBank], a
ldh a, [hROMBank]
push af
ld a, [wTempBank]
rst Bankswitch
call FarCall_JumpToHL
; We want to retain the contents of f.
; To do this, we can pop to bc instead of af.
ld a, b
ld [wFarCallBC], a
ld a, c
ld [wFarCallBC + 1], a
; Restore the working bank.
pop bc
ld a, b
rst Bankswitch
; Restore the contents of bc.
ld a, [wFarCallBC]
ld b, a
ld a, [wFarCallBC + 1]
ld c, a
ret
FarCall_JumpToHL::
jp hl
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