assembler_z80_knightos.asm

#include "kernel.inc"
    .db "KEXC"
    .db KEXC_ENTRY_POINT
    .dw start
start:
    pcall(getLcdLock)

    pcall(allocScreenBuffer)
    pcall(clearScreen)

    kld(hl, message)
    ld de, 0
    pcall(drawStr)

    jr $ ; Loop forever

message:
    .db "Hello world!", 0