mirror of
https://gitlab.com/xCrystal/pokecrystal-board.git
synced 2024-11-16 11:27:33 -08:00
50 lines
671 B
NASM
50 lines
671 B
NASM
FarCall_de::
|
|
; Call a:de.
|
|
; Preserves other registers.
|
|
|
|
ld [hBuffer], a
|
|
ld a, [hROMBank]
|
|
push af
|
|
ld a, [hBuffer]
|
|
rst Bankswitch
|
|
call .de
|
|
jr ReturnFarCall
|
|
|
|
.de
|
|
push de
|
|
ret
|
|
|
|
FarCall_hl::
|
|
; Call a:hl.
|
|
; Preserves other registers.
|
|
|
|
ld [hBuffer], a
|
|
ld a, [hROMBank]
|
|
push af
|
|
ld a, [hBuffer]
|
|
rst Bankswitch
|
|
call FarJump_hl
|
|
|
|
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
|
|
|
|
FarJump_hl::
|
|
jp hl
|