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