ref: 37dd85797a7c5c5581b8fb21bae83d5d34ae0321
dir: /home/predef.asm/
Predef: ; 2d83 ; Call predefined function a. ; Preserves bc, de, hl and f. ld [PredefID], a ld a, [hROMBank] push af ld a, BANK(GetPredefPointer) rst Bankswitch call GetPredefPointer ; stores hl in PredefTemp ; Switch to the new function's bank rst Bankswitch ; Instead of directly calling stuff, ; push it to the stack in reverse. ld hl, .Return push hl ; Call the Predef function ld a, [PredefAddress] ld h, a ld a, [PredefAddress + 1] ld l, a push hl ; Get hl back ld a, [PredefTemp] ld h, a ld a, [PredefTemp + 1] ld l, a ret .Return ; Clean up after the Predef call ld a, h ld [PredefTemp], a ld a, l ld [PredefTemp+1], a pop hl ld a, h rst Bankswitch ld a, [PredefTemp] ld h, a ld a, [PredefTemp + 1] ld l, a ret ; 2dba