pokered/home/predef.asm
U-Daniel-PC\Daniel cd649184f5 Rename/organize part 1 of 4
rename functions, clean up address/wram comments, other misc
only broken up so that all changes are viewable on github
2015-07-03 14:37:53 -05:00

50 lines
932 B
NASM

Predef::
; Call predefined function a.
; To preserve other registers, have the
; destination call GetPredefRegisters.
; Save the predef id for GetPredefPointer.
ld [wPredefID], a
; A hack for LoadDestinationWarpPosition.
; See LoadTilesetHeader (predef $19).
ld a, [H_LOADEDROMBANK]
ld [wPredefParentBank], a
push af
ld a, BANK(GetPredefPointer)
ld [H_LOADEDROMBANK], a
ld [MBC1RomBank], a
call GetPredefPointer
ld a, [wPredefBank]
ld [H_LOADEDROMBANK], a
ld [MBC1RomBank], a
ld de, .done
push de
jp [hl]
.done
pop af
ld [H_LOADEDROMBANK], a
ld [MBC1RomBank], a
ret
GetPredefRegisters::
; Restore the contents of register pairs
; when GetPredefPointer was called.
ld a, [wPredefRegisters + 0]
ld h, a
ld a, [wPredefRegisters + 1]
ld l, a
ld a, [wPredefRegisters + 2]
ld d, a
ld a, [wPredefRegisters + 3]
ld e, a
ld a, [wPredefRegisters + 4]
ld b, a
ld a, [wPredefRegisters + 5]
ld c, a
ret