z80-asm not work executing program

[andromeda92]

Hi,
i have the code below:

Code: Select all

bdos    equ     5
;
putstr  equ     9
;
        org     100h
        public _main

_main:        
        ld      c, putstr
        ld      de, hello
        call    bdos
        ret
;
hello:   db      "Hello World!$",13,10

compiling with:

Code: Select all

zcc.exe -v +cpm hello.asm -ohello.com

it work well on CP/M (RunCPM esp32, RunCPM pico,CP/M agon etc ..)

but with this command line:

Code: Select all

z88dk-z80asm.exe -v -mz80  hello.asm -ohello.com

any idea ?
Thanks.
it compil but nothing happens, it goes back to the CPM prompt

[andromeda92]

Resolved:
i forgotten -b option
z88dk-z80asm.exe -v -b hello.asm -ohello.com