ref: a0e8e5ac5b7d91451ce6eac4c7c65641f7e5a59c
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 .de jr ReturnFarCall .de 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 [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