ref: fbcc8d1b0e05cace2abe2083a88a8c2304efc9d7
dir: /home/farcall.asm/
FarCall_de:: ; Call a:de. ; Preserves other registers. ldh [hTempBank], a ldh a, [hROMBank] push af ldh a, [hTempBank] rst Bankswitch call FarCall_JumpToDE jr ReturnFarCall FarCall_JumpToDE: push de ret FarCall_hl:: ; Call a:hl. ; Preserves other registers. ldh [hTempBank], a ldh a, [hROMBank] push af ldh a, [hTempBank] rst Bankswitch call FarCall_JumpToHL ; fallthrough ReturnFarCall:: ; 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